fibre optics

Hello, Hope to find here some information about Optical Fibres. I am building an under water housing for DSLR. I want to use it just under the water surface. Controlling (through an air bridge) and exposure (through optical light guide) are on land. The question is about optical fibres. I need a 160 cm long Fibre Optic Lightguide. A 1/4 inch diameter guide costs near 200 GBP. When I would make one myself of 1/2 inch diameter, I could safe 75 % + the entrance surface is more than 3 times larger, which is important, since I will have to guide the light of a flash gun! BUT, I doubt wether such a diy bundle of 1,5 mm diameter plastic fibres from ebay will give me roughly the same or preferably more light output as/than a professional guide? How do these plastic ebay fibres compare to professional or glass fibres in terms of light transfer efficiency? Any suggestions? If not, then a reference to another forum where they might be able to answer my questions, would be much appreciated.

Topic by butterflies55555   |  last reply


Fibre optic tree?

I want to run my Christmas fibre optic tree without the motor.  Would I have to alter anything, its lamp is 15w 12v?

Question by eileenlilley   |  last reply


Furniture with cement fibre boards

Has anyone ever tried to make any kind of outdoor furniture with cement fibre boards? 

Topic by KartikM5   |  last reply


Carbon Fibre Rotor Blade

I wish to construct a pair of 70cm long carbon fibre rotor blade for my rc helicopter. The inner part of the blade is hollow to reduce weight. I understand that I need to make a two-piece mould out from a sample blade, with some kind of rasin. Any idea or suggestion is very much wellcome. Thanks to all for sharing.

Question by choonsiong08   |  last reply


Wrapping wood in carbon fibre.

Hi, After cutting my own wooden lacrosse shaft using the tutorial on Instructables, it snapped within half an hour of use. Now I know this was because the grain was pretty poor and it was not a strong wood, but someone suggested that I wrap a shaft in carbon fiber so that it is slightly stronger, limits horizontal movement and reduces denting. I just have a few questions about trying this; Would this carbon fiber be appropriate for the project. http://compositeenvisions.com/raw-fabric-cloth-2/carbon-fiber-97/carbon-fiber-fabric-plain-weave-3k-5-7oz-tape-605.html if not where should I look? The biggest problem I see is somehow packing the carbon tight around the shaft so there are no bubbles and it is consistently straight all the way down the shaft, there is a vacuum packing basics tutorial on instructables but I'm not sure if you could use that for a lacrosse shaft. Instead of making my own bag as per tutorial would just a plain bag (http://compositeenvisions.com/vacuum-infusion-equipment-71/nylon-vacuum-bagging-film-500.html) be fine then clamp off the unneeded extra, although are those bags re usable? Because I don't want to have to pay $5 USD every time I would like to wrap something. I saw something called bleeder cloth as well, would this be needed to stop excess resin sticking to the shaft? When it comes to the carbon, I know someone who sails a lot and has some experience with carbon fiber but none with vacuum packing who said I should lay it up like the image attached to decrease horizontal movement while allowing vertical flex. Would this have the desired affect as if this is successful I plan to make a ton more for a high school team I help coach. I've attached a image to give you some idea of what I'm talking about. Then for the actual laying of the carbon itself, a shaft is not a flat surface so you can't just pour it on like the Youtube video's I've found. I'm not sure how to pull this off. Then afterwards, is there a simple way to test the properties of the shaft; specifically flex and impact strength. Because even if I don't end up wrapping the shafts I still need to test the wood to compare it to alloy. Sorry about the small essay, but I would really like to give this a good shot. Because shipping shafts from the states is quite expensive, being able to make my own and then put graphics on them would be amazing.

Topic by Thatkiwiguy   |  last reply


I need a special tool ? Answered

Has anyone any suggestions for a tool which would be "like" a camera iris, with a hole several mm long, but which can be varied in diameter from 1 (0.040 ") to 0.2mm (0.008"). I need to set the diameter fairly carefully, to just gently pinch a bundle of 70micron (0.0029"") optical fibres passed down the centre. The hole needs to be very circular and rigid, even as its closing...... Something kind of like the mechanism of a "pin-chuck" suggests itself, but wouldn't be very round in the limit. Any ideas ? Steve

Question by steveastrouk   |  last reply


Optical fibre cable DAC chip??

Hey everyone,I'm trying to take an audio signal from an optical fibre cable pass it through a DAC0800LCN IC, 8BIT DAC chip and input into the Arduino. I'm trying to use a 3 pin fiber optica toslink transmitter to connect the fibre optical cable to the DAC chip. Does anyone know how to set this up or even if this would work? If anyone could answer this is would be much appreciated.

Question by MCsugar43 


How do I make a carbon fibre pipe for an air intake?

Hello folks! I'm trying to figure out how I can make a carbon fibre pipe for my cars air intake. I have a semi-flexi alloy pipe which I have managed to bend into shape and it will keep its shape without changing even if I take it out of the engine bay. I was wondering how I would go about making a mould of the pipe to make a replica of it out of carbon fibre for ultra cool points. Plus Carbon fibre helps repel heat better than aluminium. I was originally just going to get a Carbon Fibre vinyl wrap around the pipe but, why fake it?

Topic by apmaman   |  last reply


Carbon Fibre Flywheel (for energy storage)

I'd like to build a flywheel but I'm not sure what I need to know before i start, Is it difficult to do? Is it possible to accomplish with off the shelf parts? Any help at all would be appreciated greatly.

Topic by nuncoop   |  last reply


How to use Fiber Optics?

I am making a super-discreet earpiece/IEM that is intended for any use where you feel bored, where you are not supposed to use electronic devices. Meetings, lectures, classrooms, etc. Basically, it's a 3.5mm jack wired to a Balanced Armature driver. Essentially, I remove the big, thick and bulky housings of earpieces and leaving the smaller drivers in place. I've been using thin copper cables in the earpieces I buy. They work, but are still visible. I found that optical cables are near invisible, glass-like. I intend to wire them into my earpieces. So, do I require lots of circuits? I can do those, if they don't poke a black hole in my wallet. No more than USD100, if entirely possible.  I just want to know how to change electricity into light and back again, and allow for audio transfer from MP3 player to earpiece drivers.

Topic by chua_erei   |  last reply


I need a velcro-receptive ("loop") that is adhesive on one side. What do I need to search for on eBay?

Hi everyone.I need a one side adhesive, velcro-receptive tape.That is, an adhesive tape that is sticky on one side and on the other it has a felt-like tissue.English is not my first language and I am not sure about what to search for on eBay or Aliexpress to buy.I need this for my project but all the tapes I could find have both sides (both hook and loop) and they are much costlier than what I'd expect just for a felt-like one-side adhesive tapes.Can you help me please?Thank you,Atkers

Question by atkers   |  last reply


Side-emitting (or sideglow) fibre. Cool ideas?

I have about 20m of 0.7mm diameter side-emitting (or sideglow) fiber optic cable, and access to high powered LASER modules. Does anyone have any cool, creative, funky or bright ideas on what to do with it? Apart from mood lighting at a night-time BBQ, or making a halo for a fancy dress party, or ricing up my motorcycle, I'm stumped.

Question by jamlad   |  last reply


How to Make Fibre Reinforced Plastic Box

Hello, I am working on a project in Togo, West Africa whereby we make information commercials in the local language. Africa has roughly 3000 languages, and this device called "Mama Says," attracts the locals with films, then educates with announcements every 5 minutes in the local language. Most aid organizations do not seem to understand the locals do not speak the lingua franca language. I need a box made out of Fiber Reinforced Plastic, or something light, I need suggestions on how to find companies to do this? I need a step by step explanation on how to make a prototype, and estimations of cost? This is also for brainstorming, I am looking for ideas. Thank you, Andy Lee Graham of Hobo Traveler Com.  

Topic by hobotraveler   |  last reply


Is it possible to electroplate carbon fiber? Answered

Hi, I'm into knifemaking. There are some carbon fiber knives on the market, but they all have very poor edge retention. (because the edge is made of carbon fiber as well) I was wondering if it would be possible to add a thick metal coating of a hard metal to a carbon structural center, as to coat the blade in a thin layer of metal. This metal would then be serving as the cutting edge, hopefully with better edge retention.  Is this at all possible? What types of metal could be used? Thanks in advance!

Question by jelte1234   |  last reply


I have a carbon fibre road bike that has a problem...

I have a carbon fibre road bike. I accidently grabbed the waterbottle carrier on the downtube. The waterbottle assembly along with the aluminum frame anchors were ripped out. I have been riding for a week without it. With the 2 holes there in the down tube...would there be further fractures or the frame would start cracking if i didn't fill the holes. If I were to fill the holes with silicon or epoxy...would this prevent any stress cracking?

Question by cdncycler 


Solar 3w led fibre optic outside tree decoration

So I have salvaged a solar panel and the battery that it charged from a wireless alarm. The battery is 6v 1.2amps. My plan is to have the panel charge the cell during the day (its Ni-Mh) and using an LDR light a 3w led when its dark. The led will be connected to a number of strands of 1.5mm fibre optic cord, with a number of these attached to a tree to make it look.....nice. I have tested three strands of fibre optic cord with lengths of 2m with a lesser led and all appeared fine. I have a 3.7v 700ma driver (coming from China) which will drive one 3w led, along with heat sink. Now is where I am struggling a little, I am not massively experienced in electronics. I think I want a diode attached to the solar panel to avoid battery drain. Then a resistor to reduce my 6v to 3.7-4v and the LDR. Does this look like it would work in principle? Would the battery run 2 of these drivers/leds or would it discharge too rapidly? Thanks for any input!

Topic by earton   |  last reply



HOW CAN I USE SOLAR POWER WITH ELWIRE?

I would love to use SOLAR POWER and ELWIRE (electro luminescent wire) and if I can find a source of offcuts, some FIBRE OPTIC CABLE in a recycled junk sculpture. Being a female I never had a chance to learn much about electrical matters, soldering wires etc. If someone can give me some clear instructions on how to incorporate SOLAR POWER and ELWIRE it would be invaluable to me, and much appreciated. I would also like to know the best ways to link Fibre Optic Cable to a light source. I am hoping to source some solar panels from discarded solar garden lights. If anyone knows where I can source offcuts of FIBRE OPTIC CABLE  in  Western Australia that would be a big help too. Any information that will help me to understand how to use these materials will be most appreciated. If I can create what I am hoping to build, I will keep records and photos of the process and post pics on Instructables at a later date.

Topic by zoe-australia   |  last reply


is there a led that can change colour? Answered

And if so how does it work?....and if so would it be a feasible idea to make clothing out of some form of fibre optic fabric  that could change colour based on this led?  

Question by afridave   |  last reply


Dyeing sheepskin boots? any alternatives to conventiona suede dye?

I have a pair of bearpaw(?) sheepskin boots, that really need colouring..they are filthy and don't clean well. i want to dye them black. What kinds of dye can be used, apart from the $$$regular suede dyes? fibre reactive dyes? dyes for wool? hair dye?..i know you can use koolaid to dye wool (protein fibres) but they need to be boiled..i don't think my boots would be too happy being boiled. the dye needs to keep the sheepskin soft and supple, not transfer to my feet..or wash off in the rain.. Any ideas?

Question by edel   |  last reply


inflatable plane

I would love somebody to build a 2 seater plane that is collapsable using a telescopic carbon fibre frame and wings covered with a balloon type inflatable skin and cockpit using helium as the inflating gas it would in theory be light enoug to be powered by a microlite engine. And after that a helicopter on the same principals.

Topic by will1947   |  last reply


Halogen to LED.?

Right now i'm working on photo spectrography, and using a halogen lamp because of the wavelength it outputs. The thing is, we are trying to make a more portable version of this, is there a type of LED or an array of them, that i could use for this? Take in mind that the LEDs have to output a wavelength very similar or equal to that of a halogen lamp.  

Question by joreknight   |  last reply


Cats eyes road markers? Answered

Over the years I have come up with a variety of ideas - some Impractical, some worked and many that never went beyond the thought or drawing stage. A long time ago I thought this was a good idea, with no budget or inclination to action it practically I put it up here for comment/critique In the UK and many other countries the centre and edge of the road is marked with reflective dots. In the UK we call these cats eyes as the inventor was supposedly inspired by the way a cats eyes shine in the dark. However good though they are they only reflect as far as your light beam reaches. On dipped beam this may not be that for ahead and with the sort of traffic we get in the UK you hardly every get to use the main beam. My suggestion is to cut a slot down the middle of the road and lay in it a fibre optic cable linking every cats eye in groups of say 50 or 100. The ides is as the diagram shows the Fibre optic carries your dipped head light far further then it would normally shine without the risk of dazzling other road users. I think that this would significantly improve road safety at little cost if done when road refurbishment was carried out anyway as at this time the cats eyes are often removed and replaced. The cats eyes could be simpler, lower profile and possibly cheaper to makeas they would only need to be a plastic holder for the fibre.

Question by rickharris   |  last reply


RE-USE SCRAPPED GLASS-WOOL

Was working on a water heater using an old water geyser when i realised there is around 5 kg of glass-wool used as insulation. I do not wish to discard it and cause problems to others. but am neither interested in making epoxy based fibre glass products. ideas anyone??

Topic by chakra   |  last reply


How can I make stuffing?

Hello! I love to do amigurumi, but I've noticed that stuffing is very expensive. I'm looking for new way to stuff my amigurumi. I've already had used: stuffing soft polyester fibre mattress and pillow wool absorbent cotton balls of old wool (almost run out of these :D) Any other ideas? I'm looking for a way to make stuffing out of rags. Thanks :)

Question by MicioGatta   |  last reply


Biocouture: grow your own clothes.

Every so often, a bit of cutting edge science makes you sit back and think; This is so simple! Why didn't they think of this earlier? Instead of using animal parts, or plant fibres, BioCouture aims, ultimately, to grow entire garments in a vat. Right now, they grow mats of bacteria and yeast in a bath of nutrients, which spin mats of cellulose fibres that can be shaped into garments, resulting in a material dubbed "vegetable leather". The use of the material is limited - it cannot be worn in the rain, and it decomposes like any other vegetable matter, but the original team of artists have turned their idea over to "proper" scientists, who are working to modify the final product to be hydrophobic and longer lasting.  Until then, the garments they produce are unique, and transient, since they can end their useful lives on the compost heap. In the mean time, this is stuff grown in bath tubs - any Maker with a spare room and a biological leaning could be producing this stuff themselves. There's a patch for the first member to grow their own Robot t-shirt ;-)

Topic by Kiteman   |  last reply


Light Tube, Skylight Ideas. Free 1 year pro membership to my favourite comment.

Hi Instructablers, Maybe you can help me with a little project I'm mulling over at the moment. I'm thinking of building a skylight to direct the early morning sunlight into my dark, west facing bedroom. My goal is to make something that lets me wake up naturally as the sun rises. I've done some quick research on what is available for sale in local hardware stores, and all I could find looked pretty ordinary and was very expensive. Ideally I would like to catch light from the eastern side of my roof and direct it through a light tube to the ceiling of my bedroom. The distance would be about 4-5m with a couple of bends. Does anyone have any suggestions on how to make an efficient light tube? Flexible mirror lining a tube? Optic fibre? Light pipe? In case that's too easy, the next challenge is a bit more fancy. I'm imagining a slim light tube running down inside a wall, from the roof space to a translucent panel made to look like a picture frame or window. It would be a lot like having an actual east facing window. Keep in mind that I'm a complete cheapskate on a tight budget. All ideas are welcome. Mad or Mundane. Crazy or Crafty. Barmy or Brilliant. I have free pro memberships for my favourites. Cheers, Cammers

Topic by cammers   |  last reply


Dvd player is a tad loud

I gots a question, I have this Panasonic X410 dvd player, it's a real nice unit for 1999, and makes a real nice big single disc cd player..but on my stereo when I play music, it keeps lighting up the peak indicator on my reciever, which probably isn't too good to do that often. I wanted to know if there was a way to "tune" this thing down a bit as far as the line level outputs, but there's not onscreen volume control that I can find. Also, I'm fairly pertubed as to why there's two sets of video rca outputs and two sets of the audio jacks, respectivly, set side beside each other. There's no specific labeling of their function other than just video and audio out, not video 2 or nothing and I don't remember any mentioning of in the manual a few years back when I still had it. This unit has a nice 10 bit video dac with a 24 bit audio decoder (96khz something), I really want to hear what the fibre optic on it sounds like, but hey I can't afford a $3,000 amplifier right now, does anyone know of any kind if "converter" or way I could install a fibre optic board I can get my hands on into my surround sound unit I have now. Ideas ideas, I guess I have spring fever eh?

Topic by Punkguyta   |  last reply


Making a phone headset from soney erricson into a pair of normal headphones?

Hi, I have a pair of Sony Erricson Inear Phone Headphones, I'm wanting to make it into a plain pair of headphones. To do this i have chopped off the phone adapter and stripped back the outer insulation. What i have now are 5 wires. One uninsulated copper one that i presume acts as earth and an aerial, one black, one white both with plastic insulation and one green/blue and red with some form of wire insulation. All cables bar the copper uninsulated have a kind of fibre in the middle, can anyone help me identify which are the audio channels?

Question by    |  last reply


Transparent concrete!

OK, maybe not properly transparent, but an inclusion of fibre-optics makes it light transmitting. It's a German product, and, from their website: LUCCON translucent concrete is manufactured in large volume top layer concrete blocks with embedded webbed fiber optic cables, making the stone appear comparably massive as well as transparent. By cutting the blocks elements of variable size and thickness are obtained. Upon request LUCCON is available in special colors, dimensions or surface treatments, just ask us! . I'd love to see what our members could make with this stuff, or see them replicate the idea with their own techniques. Concrete lampshades?  Concrete windows?  Transparent concrete canoes? Video from YouTube will not embed. Luccon website via NOTCOT

Topic by Kiteman   |  last reply


Cyber War with a Shovel?

A 75 year old woman has cut Armenia off from the internet. Whilst scavenging for copper in neighbouring Georgia, Hayastan Shakarian accidentally severed the fibre-optic cable connecting all three of Armenia's internet wholesale providers, and the whole country was cut off for almost 12 hours until after midnight on the night of 28th March. The pensioner has been arrested, and could face three years in prison, but has been released pending the completion of the investigation and the result of the prosecution. Armenian websites identified Shakarian as Armenian herself, not Georgian, and questioned the credibility of an old lady causing the blackout, claiming similar damage in Georgia has caused problems for Armenia in the past. AFP ArmeniaNow BBC

Topic by Kiteman   |  last reply


how to make a see through/ transparent keyboard for a pc?

I want to make a see through keyboard for my pc. i want it to be just a sheer piece of glass or plastic with maybe a bar at the top or side to hold the hardware. it probably has to be a touchscreen. with fibre optics as well? i dont really know. the 'keys' would be great if they could be lit up but i don't know how that would be possible without showing wires. it would also be an added bonus if it was wireless. i was thinking of something looking like the keypad of the lg crystal. i need some help as i don't really have an idea of how to make it. anyone have any ideas? thanks in advance.

Question by MANIAC   |  last reply


how to fix holes in a polyethylene/polypropylene solar heat exchanger Answered

This solar heat exchanger is a 5m sq flat sheet consisting of two layers of black polypropylene or polyethlene (not sure which)with rows of fine bore plastic tubes sandwiched between through which water is pumped from the pool at low pressure.The water warms whilst passing through the system, then empties back into the swimming pool, hence, free pool heating. After 2 seasons of use, there are a few leaks at the joints where the fine tubes meet the main inlet tube. I tried to seal them with glass fibre, then cyano-acrylate resin...nothing stcks to this type of plastic. Any ideas for sealing these holes? The plastic is too fine to use a heating method.

Question by MalKnowles   |  last reply


Help with Panasonic 28.8v rotary hammer drill?

One day i was working on a house where i was fixing wood fibre board to the exterior of the house. i was drilling quit alot , 20-30 minutes periods over a 8 hour day. well after a few days, my Panasonic hammer drill started smelling quite unusual. like electrical burning smell. the hammer drill lost power and altough it still worked and the end was still spinning, it was pritty much unusable. i was seeing if anyone could give me any help as to what is wrong with it as im in dire need of it at the moment and i paid too much money for it just to throw it away. any help would be great. thanks

Question by AshK10   |  last reply


LED panel lights with water damage - other uses?

We had a slight roofing problem at work and as a resul a lot of our recently installed LED panel lights got flooded.Now, I though: How hard can it be to fix them....Surprisingly these flat replacements for flouroscent tubes are actually manufactured in a way that you can take them fully apart if you dare.Like some old computer or flat TV screens they use a row of LED's and then some sheets to direct and distribute the emitted evenly throughout the entire panel - like a backlight with no screen.What was a surprise however is the size of the LED's and how they are "soldered".Obviously a mass production in a reflow system.First problem for me was that the LED's used are right between two commonly used SMD sizes.So a 0204 is far to big while a 0102 won't even touch the solder pads.For once I did the smart thing and decided to try to remove at least the clearly faulty and correded bits first and did not order a bunch of LED's...A drop of glue is used to hold the LED's in place until they are soldered.But unlike any glue I encountered for this purpose the stuff won't come off.You can use proper double sided soldering tweezers or a heat gun to soften the solder but the LED itself won't come off.Last resort was to increase the temp of the soldering equippment to soften the glue or to even fully melt it.Lets just say the plastic film making the acutal connections like a circuit board does not tolerate the heat required...I have now a bunch of useless lights, some still working LED power supplies...Was wondering if anyone ever tried to make a backlight screen or one of these panel lights work in reverse?Meaning using natural light on the panel to "collect" it at the thin bit where the LED's were located.Might be useful with some fibre optics or solar cells.Are there other good uses for these films, foils and sheets in a backlight system?Don't want to toss them out only to realise a few weeks later these things are actually good for more things...

Question by Downunder35m   |  last reply


Pedal-powered airship gets half way...

A French amateur pilot's attempt to be the first to cross the channel on a pedal-propelled airship has failed.Stephane Rousson, 39, from Nice, took off from Hythe on the Kent coast at about 0800 BST and was half-way to the French coast by 1300 BST.But he was hampered by a change in the wind direction and called off the trip 11 miles from Wissant in France.Mr Rousson said: "I'm not disappointed. I feel happy because it had nothing to do with any technical failure."During the challenge, Mr Rousson was suspended underneath the balloon envelope in a carbon fibre gondola, powering the two propellers with his feet using a bicycle-like contraption. The most amusing thing about the whole trip is the safety system:Just in case Rousson found himself flying irretrievably high, he hung an open penknife from the gondola framework, with the intention of popping the balloon and heading for a splashdown.Sorry, that's the second most amusing thing. The most amusing thing is the pilot's childhood inspiration - ET.BBC article

Topic by Kiteman   |  last reply


Star Wars Landspeeder Build question? Answered

Hello, I occasionally make simple props for a guy with an events company. He is the most unorganised man that I have ever met but manages to pull it all together in the end and I love the chaos of working with him. This time he wants a Landspeeder; he is going to buy an electric car of some sort and we will strip it and build on it. At first I thought that he wanted a faithful replica and showed him this; https://www.youtube.com/watch?v=Ij4l2l1LsmI It was the only useful thing that I could find on the internet and shows a replica that took a professional six weeks using fibre glass. He agrees that we will not manage that in the timespan and that the measurements will depend on the car that he has not bought yet. I know that he will just turn up and say " we have a weekend to do this; any ideas ? " It's the nacelles that I am interested in; as a quick build, I think three plywood discs, wooden strut supports and a metal skin, as shown; and then use that shape as a base Any better ideas or better still, is there anything out there in the world that could be appropriated; like a plastic IKEA planter for example ? Thanks FOH He also wants a hover motor bike in the same weekend.

Question by FriendOfHumanity   |  last reply


12v double flash with Arduino?

Hi, I am in the middle of trying to figure out how to get my Arduino to power a 12V LED on a double flash for use in a model (USS Enterprise NCC 1701). The trouble I have is the double flash only has a delay of 0.7 secs so I think if I used a relay it would not be quick enough to turn on/off? The LED powers OK and runs from the Arduino on it's normal 5V, however it is not bright enough (I am going to hook them upto fibre optic so need the extra brightness). Any ideas how I can do this, presumably putting 12V into the USB connector would fry my Arduino? I have never programmed or used an Arduino before, nor have I done much in the way of electronics for 25yrs, so I am a little rusty, any help would be appreciated. To give you an idea of the speed I require, this is some of the program (within a loop). digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)     delay(70);              // wait for 0.07 second digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW     delay(70);              // wait for 0.07 second digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)     delay(70);              // wait for 0.07 second  digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW     delay(3000)         // loop after

Question by Pittnuma   |  last reply


Cheap beef jerky

At least around here you will be stung painfully in your hip pocket if you want some half decent beef jerky.For some a snack, for others a survivial pack on long hikes, or just fun to eat....I like to do things differently from time to time and where possible save a buck or two.So a few years back I decided to invest in a food dehydrator that doubled up for other projects.There is a lot of traditional ways of making jerky, from selecting the right meat, over the right cutting down to marinating or seasoning the meat.But I did not find too many people using a dehydrator for the final step.A quick run down on my preparations:Meat cut into thin slices, then strips.Marinating for a day or two then a gentle air dry.Optional because I might be the only one who likes it: Covering with salt for a few hours to get a really salty taste.One problem when using a dehydrator with meat is that things can get messy.You only want to air dry on a wire rack or similar until the meat is semi dry on the surface but not until it already starts drying out.I do it inside and only for about 3 hours or so.Doing it for too long can mean much longer drying times in the dehydrator as a crust has formed on the surface already.To prevent excessive mess I cover my trys with non stick baking paper.This means only the top side will be dried until the meat starts to wrinkle up a bit.I dry at around 40°C and do a quick check on the meat every 30 minutes - each time a different tray.Once the top side feels dry to the touch I turn the meat over.If the paper got quite soggy I give it a quick wipe with a paper towel, otherwise I leave it all on there and hope some of it will stick to the meat when turning it over.Depending on the thickness of the meat the entire process can take 8 to 10 hours, thin slices dry in around 5-6 hours.What is the right moisture content for the finnished jerky?That is a question only you can answer!Some people prefer a mild jerky that is firm but easy to chew.Others, like myself, prefer the jerky bone dry and able to be kept fresh in an airtight container for years to come.I found the best way still is to properly age the finnished product before use.By aging I mean putting into a sealed container to even out the moisture level.Unless you rotate in very fancy ways a multi try dehydrator will always produce some pieces in corner areas that are less dry.The key is to have a large enough container so you can shake it all through once or twice a day and giving it a replacement of the air inside.Really hard and dry pieces will soften a bit while those really soft pieces will give their moisture away.Like this the meat is good for about 2 weeks from the day you dried it.Leaving it open in a well ventilated area with very low moisture level will fully dry the meat while it ages and prolong the best before date.Keep in mind that you don't want soggy meat to start with here, the overall moisture level should be well below 10% in the meat when done.If you fully dry it, especially with a bit of salt in it then the meat last for like forever.A nice way to figure out if the meat is fully dry is a digital scale.Take a sample pieve and check the weight, write it down.Place it in the dehydrator for another 30 minutes and check again.Less weight than before means moisture was lost and the meat you sampled was not fully dry yet.Same weight as before means it is dry.As a final step some people might want to put the meat outside on a sunny and dry day.If you do then please not into the direct sun and with a mesh cover to keep insects, dust and other things away from the meat.Cheating on the softness...Some of my friends like their jerky with a consistency more like chewing gum.Or like a slice of good, smoked ham if you don't like chewing gum.The meat selection and cutting direction are vital here.Think of it like bying a steak, the cheap, crappy one means it might be tough one to chew, the quality cut from the butcher will almost be certain to be a great experience.Sizzle or minute steaks are a quicky way to save some time making jerky but not so good for a nice and soft jerky.Of course, if you are on a budget you can cheat with manual labour and tenderise the meat the old fashion way before seasoning or marinating it.The marinade is another way you can cheat.Meat soaks up the marinade to some extend, especially if you tenderised the meat and got rid of the excess fluid that come out of it.Oil should be avoided for obvious reasons but you might have noticed that some commercial jerky always feels greasy.Plant or vegetable fats that melt below about 45°C can be used in a warm marinade to add some softness and in some case a better taste as the fat binds better to spices and seasoning.The downside is that you also need a drying temperature below the melting point of the fat and that it seals in a lot of moisture, which means much longer drying times.But you get a nice and soft jerky in return.The right cut...When you cut your own meat it helps to know what to look for.You want the meat fibres going in the right direction in your jerky slices!If you take a long piece of sirlion as an example than the fibres will run lenghtwise through it.Since you want to be able to rip or chew a piece off the jerky you want these fibres going sideways through your slice, not lenghtwise.In the sirlion example it means you cut thin slices of the "sausage" and from those you cut the strips.The wrong cut...If your fibres run lenghtwise through your jerky strips it will be very hard to get through them.Not only when you want to rip a bit off but also when you chew on it, it can be a very long chew...Some people though prefer it in short strips that are a bit thicker than usual.Like with tobacco in the old days they chew on it until the taste and flavour is out and discard of the rest.

Topic by Downunder35m 


SST plasma tube

I am in the process of creating a plasma tube, similar to those globes but made from an acrylic tube of about 80cm lenght. In my small scale experimets with a glass bottle instead of the tube I was able to find a way to mix some Argon gas into the vacuum to create the type of plama arc I want. Problem is the HV part for the much longer tube and how to keep the input voltage at 12v to be electrically save. To drive the switching part of the HV section a simple quare wave generator with adjustable frequency and pulse width is used. In my current design I use 5V for the driver and 12V for a TIP122 that drives a modified flyback transformer directly. Now to specify my problem: The TIP is good for 100V and up to 5A with proper cooling. But I would need to make a new HV coil capable of delivering around 80kV at 12-30kHz - that is the easy but time consuming part. The primary side would have quite some inductance and I fear the TIP122 would soon get into trouble. So I was thinking of using a IRF260 mosfet instead but they need a proper gate driver for high and accurate switching speeds. To further seperate the driver from the hot action I thought of using a LED on the driver side connected by a fibre optics cable to the Mosfet driver. Would it be feasable to use good a transistor to drive the gate of the Mosfet directly or is a gate transformer the better option? Are there any shematics available for a gate driver that uses an optical input? And yes, of course I will make an Instructable if I ever get it all working to my satisfaction.

Topic by Downunder35m 


Hoverbike takes off

Australian Christopher Malloy has built what seems to be a working hoverbike.  Built in his Sydney garage, with a custom carbon-fibre frame and a BMW engine, the machine is being touted as "Star Wars Speeder bike Mk1". Currently restricted to tethered flights of a few inches altitude, Malloy claims the bike feels stable, and is just waiting permission to undertake untethered tests. 'I am still ground testing at the moment only because I'm not 100 per cent sure what will happen so the straps are there to cover the unknown. I haven't had the pleasure of flying round the countryside yet. 'It is quite stable and doesn't want to tip over but if something unplanned happened during testing I wouldn't want to break the prototype. 'The Hoverbike was built with safety in mind so at least three components have to fail before you might have a serious airborne failure. 'There are also two explosive parachutes attached to the airframe and of course the rider could choose to wear their own parachute too. He predicts: 10,000ft altitude. 100mph 92 mile, 45 minute flight on one tank £45,000 pricetag The hoverbike should also have "ultralight" status - at only 270kg, under US regulations, no pilot's license would be required.  Since it has no driven wheels, it shouldn't require a road license either...!  Malloy is a former helicopter pilot, and says those skills are helpful when flying the hoverbike, but also says that the unique craft ultimately needs no more skill to fly than a motorbike, with speed and direction being controlled by a mixture of throttle and body-posture. As soon as I win the Lottery, I know who is going to get a knock at the door... Via Daily Mail

Topic by Kiteman   |  last reply


Tablet PC From Netbook? Answered

Hello Everyone :) I'm new to this community, though I'm not new to DIY projects. I hope somebody can help me out, I need some help with a proposed project of mine.  I have an old Acer Aspire one 751h and it's an 11.6 inch netbook, LED screen, and I'm willing to tear it down to make a windows tablet. I know I need a touch screen kit, but I need help choosing one, I don't mind resistive ( I know it's very hard to find a multi touch 11.6 inch touch screen kit) In fact, I would say I would prefer ressistive as It's cheaper. One more thing, is it possible to use a larger touchscreen on a smaller screen and then calibrate it? as long as it's the same aspect ratio? For the tablet case/ body, inverting the screen and using the original Acer aspire one 751h case isn't hard, but if it's possible to use perspex or a material like that ( no carbon fibre please) I would like a few pointers. I don't mind the tablet having a rectangular feel/ look, as long as it's easy and practical to build. I also have an old  8x6 inch graphics tablet with 1024 levels of sensitivity, is there any way I can use this along with the touchsreen for input? Like behind the screen.  The netbook runs Full HD content and windows 7 fine and has a 16:9 aspect ratio screen, one of the reasons I'm keen on the project . Thanks a lot ! :) 

Question by Nimer11   |  last reply


How can I replace this 3-prong airplane jack on Blackbox m10 headphones?

Hi all. I've been given a set of Phitek BlackBox m10 noise-cancelling headphones once used in an airplane. It has a three-prong headphone jack which I am trying to replace with a 3.5mm stereo jack. A similar question was asked before about a different set of headphones. The consensus seemed to be the third smaller jack provided power and may be able to be connected via a USB.  However I am new to electronics and couldn't follow along. And I don't think there was an instructable produced from it.  I want to use it mainly for my amp and listening while on the computer. The wires in the m10 are blue, red, yellow, green, black and white, along with some loose fibre I think is insulation. I have no idea which cables are which, or anything concerning specifics about voltage and so on. But I have a soldering station, wire cutters and a lot of patience. If someone could provide some help that I as an electronics newbie could follow, I would greatly appreciate it! I'll be sure to take photos and post a detailed instructable if I get it right!  Thanks! ---------- EDIT Thanks guys, been busy, though I promise I'll finish it. http://image.bayimg.com/233c8958b9197a99dded4406e58268b26a474c29.jpg I had a stab at softly prying it open along the seam [red square]. It kept snapping back, and an edge seemed to be held down tightly, leading me to think I'd snap things if I tried to open it. Though there must be a way and the seam looks like the obvious point. Should I just force it? The other screw sections I opened [blue square] weren't helpful. Cheers guys

Question by Crapsolderjob   |  last reply


Using modern UV active pigments for indirect lighting?

I am still living from boxes after moving house but I came to a small batch of very impressive UV active powder. This new kind glows in the dark for at least a full night with good visability and usally it sold with the color name "auqa blue" - just don't be fooled by the old style pigments that only lasted for a fe minutes, I am taking about hours here.... The images and videos I tried with my SLR and phone are all terrible, seems they don't really like UV light :( My thought was something like this: Having a sufficient amount of pigment in the top coat of the wall or ceiling paint to allow for a nice glow. Either on floor or ceiling level a row of UV LED's to allow for a quick charge of the pigments, or as an alternative once technology has caught up EL panels in the UV range with a pigment coating. An area of 5x2cm is already enough as a "reading light" for several hours or to illuminate a map during night time hiking trips. Also with the long after glow it would be quite possible to use "light transmission". Here you have acrylic sheets on the outside walls or roof catching the light and transporting it to the inside. So you could use natural light during the day that would also charge the pigments on wall or ceiling. Of course this is not really feasable for home use unless you don't require any sleep but tunnels, bunkers, mines and such could benefit especially if using fibre optics to "transport" the light to where it is needed. Another great idea (at least I think it is) would be to use these pigments on footpaths and sporting grounds. Imagine a footpath that glows at night and illuminates where you go! Or imagine a big factory during a power outage at night having clear walkways to direct the workers showing up all of a sudden on the floor... Some quality pigments still allow for over 200 lumens after 60 minutes of recharge - this is in the region of a low power LED of modern technology. I don't think a topic like this will qualify for a best answer but I would love to hear your thoughts and ideas on the topic of these modern after glow pigments.....

Question by Downunder35m   |  last reply


Project Collaboration?

I'm REALLY bored at work at the moment and need a personal project to distract me. The problem with past projects is I often run into problems or lose interest and they fall by the wayside. I was thinking that if the project was a collaboration I'd be more motivated and could call on people with better skills than me. Anyways I'll propose a few projects, and let me know if you are interested. Or if you've got an idea, post it up. I'd love to do something robotics related, but m programming skills aren't great. I can use "wrapper" environments, like Matlab and Arduino, but raw C++ isn't a strong point. I've got access to all the CAD stuff that would ever be needed, Pro/E, Solidworks, AutoCAD, ANSYS, Strand7. I've got some skills in and access to composite manufacturing, like carbon fibre and glass but no vacuum baggin facilities anymore. My first project idea is a bargraph type watch - kind of like the awesome binary watches here, but the time increments on a bargraph. I think only one bargraph to show the minutes would be necessary - you pretty much know the hour most of the time, and you could work it out using the minutes if it's around the hour. A ten segment display would give resolution of 6 minutes - good enough for most purposes. I could do the hardware layout and manufacturing for this project, but I don't think I could do the programming. how about a homemade SMS device? not the most practical when mobile phones are so small and cheap and would be WAY more fully featured, but I think it would be cool to have a homemade device that could at least send SMSs. Open source, single sided PCB, would be awesome. obviosuly as small as possible but maybe aim for something the size of a blackberry of treo? Not stylish maybe but maximum hacker cred thumb keyboard ---> microcontroller ---> cellular module&LCD GPS based car locator - I know this functionality exists in modern cars but certainly not my 1994 feroza - a box that sits in your car that SMSs you GPS coordinates if your car alarm is activated. I've been looking for this for ages in a commercial product but the prices are outrageous. Other more outlandish projects are a CNC machine and single sided, through-hole, no (or very little) programming MP3 player Any ideas?

Topic by trialex   |  last reply


Are you guys up for a challenge, I need a hand with something

Well, peeps, I got a challenge you guys are going to help me with. Let me explain what it's about. We pay $35 something a month for 3mbit internet. I've only ever seen 1.3-1.5mb of it. The CO (Centeral office, it's a brick building they place in each "area" and it handles all the telephone and internet connections for you area, most isp's have one or more in each town they cover and those buildings are linked with fibre optic cables) is just down my street, I can practically walk out my front door, down the street and see it. So I'm rather close, and to top that, tiverton (where I live) is where my isp decided to set home, the "HQ" is just a km down the road from my CO building. Logic tells me that I should and have the right to get all of that 3mb I pay for, I can see if I live a certain distance away, but I don't. Here's where it get's a bit interesting, I was suggested to by dijital101 to run some cat-5 cable between the junction box and my dsl modem. Well that's just what I did today, I bundled the 8 seperate wires into two big wires (4 each) and even soldered them to ensure a good connection. Ran the wire, connected it all, attached a phone plug onto the other end of the ethernet cable and got it all hooked up. Well wouldn't you know, I see not one bit of differnce. Speed tests still show like 1.2-1.5mb (When It starts, it takes forever to even build up speed). But Interestingly enough...I get full upload speed (512k is what I get for up). When I'm uploading something too, such as files or torrents, if I let it go the full 70kb/s it limits my download speed to 30kb/s around there. This is something I've had to put up with for a long time, if anyone is familiar with "BMTS" that's my isp. My question is, what is there I can do to fix it? I even unhooked the wire coming off the telephone pole, cut the ends off and re-stripped the wires and that did nothing either. The wires are pretty old and tarnished, even under the rubber coating, and they're kinda peeling too. Should I call my isp up and complain again, think they'd come and replace the line? I just don't know what to do, if I can fix it, I'm going to cable internet.

Topic by Punkguyta   |  last reply


Record Solar Powered Flight

UK-built solar-powered plane has set an unofficial world endurance record for a flight by an unmanned aircraft.The Zephyr-6, as it is known, stayed aloft for more than three days, running through the night on batteries it had recharged in sunlight.The flight was a demonstration for the US military, which is looking for new types of technology to support its troops on the ground.Craft like Zephyr might make ideal platforms for reconnaissance.They could also be used to relay battlefield communications.Chris Kelleher, from UK defence and research firm QinetiQ, said Unmanned Aerial Vehicles (UAVs) offer advantages over traditional aircraft and even satellites."The principal advantage is persistence - that you would be there all the time," he told BBC News. "A satellite goes over the same part of the Earth twice a day - and one of those is at night - so it's only really getting a snapshot of activity. Zephyr would be watching all day." The latest flight was conducted at the US Army's Yuma Proving Ground in Arizona.The Zephyr flew non-stop for 82 hours, 37 minutes.That time beats the current official world record for unmanned flight set by the US robot plane Global Hawk - of 30 hours, 24 minutes - and even Zephyr's own previous best of 54 hours achieved last year.However, the Yuma mark remains "unofficial" because QinetiQ did not involve the FAI (Federation Aeronautique Internationale), the world air sports federation, which sanctions all record attempts.The US Department of Defense funded the demonstration flight under its Joint Capability Technology Demonstration (JCTD) programme. The 30kg Zephyr was guided by remote control to an operating altitude in excess of 18km (60,000ft), and then flown on autopilot and via satellite communication.It tested a communications payload weighing approximately 2kg.At first sight, the propeller-driven Zephyr looks to be just another model aircraft, and it is even launched by hand. But this "pilotless" vehicle with its 18-metre wingspan incorporates world-leading technologies.Its structure uses ultra-lightweight carbon-fibre material; and the plane flies on solar power generated by amorphous silicon solar arrays no thicker than sheets of paper. These are glued over the aircraft's wings.To get through the night, the propellers are powered from lithium-sulphur batteries which are topped up during the day."A lot of effort has gone into power storage and light-weighting the systems," explained Mr Kelleher. "Lithium sulphur is more than double the energy density of the best alternative technology which is lithium polymer batteries. The engineers from the Farnborough-based company are now collaborating with the American aerospace giant Boeing on a defence project codenamed Vulture.This would see the biggest plane in history take to the sky, powered by the sun and capable of carrying a 450-kilo (1,000lb) payload.US commanders say the design must be able to maintain its position over a particular spot on the Earth's surface uninterrupted for five years. QinetiQ is the public company that used to be the British Government's military research department, before they privatised it.BBC articleQinetiQ's page on Zephyr

Topic by Kiteman   |  last reply


Tempered glass screen protectors - understand and beware!

I recently had the joy of needing a new screen protector for my mobile after being dumb enough to drop it on gravel. The hard cover took all the impact but the film protector on the screen was scratched badly. Was old and partially worn anyway so I decided to upgrade to a Tempered Glass screen protector. Being somewhere rural I had no chance to get one in a shop so I ordered online. With no intention of advertising for some sellers, I collected a few links so you can check what I am talking about: Item1 Item2 Item3 Item4 Item5 Item6 So, what is my concern with these? They all can be found on amazon and other online services as well as on local markets... As I said I ordered a glass screen protector. If you check these listings and even some of the packing you will notice they all have a thing in common - being shatter proof and of 9H hardness. I also love this video showing how to remove and fix a glass screen protector! The last time I checked glass had one very distinct feature: It is hard and before it really bends it breaks - unless you use fibre optics of fibre glass cloth... What is my concern and warning here? Pretty simple: Stay away from expensive scams! Some claim their screen protector is only 0.25mm thick, even the 0.2mm one I measured was over 0.5mm with the glue... The hardness of 9H refers to the so called Moh's hardness - look it up on Wikipedia if you like. That means these tempered glass protectors would have a similr hardness than a diamond, or at least close to it. Problem is that they are made from plastic to start with and not glass at all. They claims that the screen protector is flexible because it is so thin - again a fake! Even the thinnest tempered glass will shatter if you bend it enough, not so these plastic ones. If you think I am making all this up try to use a really sharp knife or deburring tool and cut the thin sides of one of these protectors. All the ones I tested could be cut quite easy - and I though glass can't be cut with a kinfe... A nice website showing that the scratch resistance is far from the claims can be found here. And a video showing how a real glass screen protector sounds and breaks can be found here. So is it really all bad and should I avoid getting one? Not really if it is only for the added protection. To be clear here, and without the intention to blame any of the above sellers, some protectors actually do have a top layer made from glass and you can hear it as in the above video - it sound solid and not like plastic if you tap it with something hard. Another factor is the simple fact that plastic absorbs impact much better than glass. So where a real glass screen protector might shatter and crack like in the above video, the fake ones might one get a nasty dint or scratch. But you should be aware and clear about what you get and what to expect from it. These glass imitations are made from a strong polycarbonate plastic, similar to the stuff used for bullet and explosion proof "glas" windows - if you every watched the Mythbusters you have seen the big sheets I mean. The top layer of these things is specially treated to repell water, oil and dirt, it also gives the surface the good scratch resistance. The technique is nothing new, camera lenses, plastic sheets and the clear covers you see over the timetable at your bus stop all use it. The new thing is to intentionally mislable a product to make the consumer think it is glass ;) What is the real difference for the user? Check this video. Here a guy performs a drop test with a real glass screen protector. Thing is once the protector breaks the screen itself is broken too but until then it was not too bad. Here it is demonstrated how a real glass screen protector reacts to certain types of abuse - one of the reason I decided on glass. Compared to the plastic counterfeits just the sound on the glass is worth it, but I think the hacksaw was best. Another video from XDA gives a bit more info on how the glass is made - if you can't seeing a phone being abused then don't watch the drop tests at the end ;) Glass with these hardness levels and types of surface protection will give the user a long and worry free use of the phone. The plastic fakes will perform at a similar level for some time but will show signs of wear long before even the top coat of the glass one fails. Both types have their uses and if the fakes would be labeled correctly the user would actually benefit from that. On bigger screens like a tablet I would actually prefer the plastic ones to prevent damage once it needs replacing. On a mobile used in less than perfect conditions I would also go for plastic as it usually is a bit thinner and will fit better within quality hard covers. But when it comes to real abuse like using with dirty fingers most of the time or mostly outdoors where a lot of dust and fine sand can be involved I always go for glass. If you paid attention to the surface treatment then you already realised that the plastic and the glass are in the same region, making them quite scratch resistant. Still fine sand or metal dust will scratch it.... The difference is in the hardness of the actual material that was covered with the oleophobic film. Glass will not give in any way, where plastic is much softer - so not to be confused with the surface hardness! This mean that sharp and point object will easier penetrate the plastic than the glass, something to be considered if you often ecounter harsh use. In terms of actual protection we need to differenciate between surface quality and actual screen damage. After all when badly scratched we can replace the protector but if the display got damaged we are back to square one. The surface hardness was already covered so let's move on to the screen itself. In some of the above videos you can see the abuse a screen might see in normal conditions, and if we would not drop our phones so often repair shops would not be at every corner LOL I have done quite a few screen repairs, mostly for friends and work mates that did not want to pay the hefty extras in a repair shop. From there I got the stories on how it happened and in almost all cases the screen cracked when the phone landed on the corners. In one case the screen and glass protector failed, including the actual display when the phone was dropped out of a 4WD and landed screen first onto a rock. A glass protector will spread the (direct onto the face) impact force onto a much larger area, where a plastic one will produce a dint onto the actual screen much sooner. So again glass wins in terms of actually protecting your expensive screen. But be aware that all this is useless if the phone lands on the corners!! Let me explain: Both the top glass on your screen and the screen protector have a thin layer of "glue". This acts like a shock absorber, so unless an impact goes deep enough so the pressure on the actual screen is too much only the protector should fail. But the screen itself is a tight fit into the frame of the phone, so all side and corner impacts go directly into the glass. As the rest of the glass has no way to give or go the stresses will crack the screen. How should I treat my phone with the new screen protector? Exactly the same way you would without it of course. But if you don't have a proper cover that offers protection of the corners you should invest in one. Having a quality protector and a good case does not mean your phone can be used as a football, see it as an added insurance in case something does go wrong. For obvious reason it can also pay off to have a spare at hand, if something bad happens that requires replacement of the protector you won't be left with an unprotected screen ;) Last but not least, double it up: For people that already know their screen will see a fair bit of abuse in term of scratches it is a good idea to put an extra film protector onto the glass one. Once it is too scratched you peel it off and replace it, while the glass protector gives you the actual protection for your screen. Corning Willow glass As time of wrinting Corning Willow glass is the only "flexible" glass on the market, unless stated with your flexible screen protector you can assume it will be just plastic. I did not list it above as this high tech material is mainly reserved for displays and at least to my knowledge is not available for screen protectors, although I will stand corrected as I have to assume some big players use it for their protectors. The material is actually a sandwich where an ultra thin sheet of glass stis bewteen two layers of durable coating, read it up on their website it is quite interesting. It won't reach the strength of their famous Gorilla glass so without an outer plastic that has the additional oleophobic coating it won't provide the strenght of real tempered glass protectors. Some phones like the Galaxy Round and the fleixble HTC phones use it for example.

Topic by Downunder35m   |  last reply


Vakna upp och titta på dessa kreditkort, finansiella officerare varna

Http://tdn.com/lifestyles/wake-up-and-watch-those-credit-cards-financial-officers-warn/article_ab91f168-7a23-11e2-aac2-001a4bcf887a.html Det kan vara den mest bekväma, bländande, tillgänglig shopping mall av allt, Internet. Men även om du är ombonad hemma i din PJs, du kan vara offer för en digital ficktjuv, sade Shelly Buller, äldre moralitet president av Medlemstjänster på Fibre Federal Credit Union i Cowlitz län. De bästa råden när du använder kreditkort för att betala online försäljare, Buller sade, "är att sticka med välkända, etablerade återförsäljare som Wal-Mart, Target och Macy's. "Online, människor har en tendens att vara mer sårbara. Du letar efter något, och du hittar det från en leverantör som inte du är bekant med. Kanske är deras säkerhet inte lika stark som en stor återförsäljare." Alla typer av leverantörer vidarebefordra konsumenternas information för vinst, säger Buller. "När folk handlar för viktminskning produkter och vitaminer, de kan falla offer för"sidan försäljning"— leverantören de beställer från säljer sina namn och information till en annan leverantör," och att andra part kan sälja den till tredje part. "Det blir en huvudvärk att stoppa skall avdragen från ditt konto, för något du inte vill till att börja med" sa hon. "Med bättre säkerhet, det finns mindre risk... "Konsumenterna skyddas väl använda ett kreditkort," sade Buller och banker och kreditkassor täcka brukar förluster när de rapporteras så snart de är märkt. Förutom tjuvar som få kreditkortsnummer genom att söka papperskorgen för inleveranser och andra finansiella poster, det finns också en risk när anställda på mindre återförsäljare eller livsmedel leverantörer går bort med en kort och återvända i några minuter, tillräckligt med tid att ta ett foto med en smart telefon. Ekande Federal Trade Commission riktlinjer, säger Buller bästa praxis är att kontrollera ditt konto balanserar och köper regelbundet så kommer du att märka udda avgifter. De största riskerna är bedragare som får människor att frivilligt ge dem information eller tråd dem pengar, sade James Gorley av fiber Federal Credit Union, som representerar FFCU på den byrån för bedrägeribekämpning koalition av Cowlitz County, som omfattar cirka 70 medlemmar från brottsbekämpning, finansinstitut och återförsäljare. "Om vi band tillsammans," Gorley sa, "vi kan uppmärksamma varandra och arbeta tillsammans för att hjälpa till att stoppa bedrägeri." Medlemmarna hör historier hela tiden, sade han, där förnuftet motarbetas av hopp och ljus datorskärmen. "Ett mycket vanligt bedrägeri är"phishing"," sade Buller, användning av e-post, telefon, "även textning" meddelanden att försöka lura folk till att ge information som kan användas för att komma åt sina konton eller skapa dubbletter av sina kort. Ibland låtsas ringer vara banken, en särskilt lömsk bluff. Den som ringt, berörda att ditt konto har äventyrats, behöver din kort och säkerhetskod kod som håller dig säker. På vissa webbplatser är skicka pengar innan du får produkten inte klokt, Gorley sa. "Någon på Craigslist säger"Hej, vi säljer valpar"eller"Jag säljer en 1983 Chevette från en samling i Dubai,"" Gorley sade. Säljarna sedan be för flyg upfront att frakta den Tyrannisera eller vintage roadser. Och folk köper det. "Jag vet människor som har tagit pengar från sina återlösningskonton" i fall som dessa, sade Gorley. Den senaste bluff-tekniken är att fokusera på utsatta människor, sade han, "äldre, arbetslösa, människor får förmåner. Jag vet inte om (scammers) få information. De kan kontakta någon så många som tre gånger,"pressa dem med en del. Eller de låtsas vara ett barnbarn i dire stegar som behöver morfar tråd pengar direkt. Människor bör Svara aldrig på dessa inviter, sade Gorley. "Vi försöker utbilda dem, förklara risken," sade han för konsumenterna, men även uppmärksammade varningar sluta inte några som är rädda om en nära anhörig och vill göra rätt, eller de som är desperata att tro de har vunnit en oväntad. I lotteri bedrägerier skicka tjuvar en check som ser verklig och passerar som en verklig kontroll. Folk säger "" Åh, jag vann på lotteri i Europa!" "Gorley sade."Jag säger, "Vet du utländska lotterier är olagligt?" De inte. "Du anger ett lotteri i Europa?" Det gjorde de inte. ... "Om du kontanter att check, du kommer att ansvara att täcka det" när den studsar. Under tiden du har spenderat pengar på räkningar, mat eller andra objekt- och använde den tråd "skatt" eller andra "avgifter" till bedragare. "Nu du skyldig alla tillbaka till banken." Buller sade hon är pratade med "intelligenta människor som säger," Jag blev lurade. Det verkade som en så stor sak. " Jag bara fick spolas." Hon skakade på huvudet. "Om det verkar för bra för att vara sant, det (börja ital) är (avsluta ital) för bra för att vara sant." En fallgrop som vi alla står inför är självbelåtenhet, eftersom det är så lätt att bära och använda betalkort och kreditkort. "Kort är ett förhandlingsorgan instrument, sade Buller,"precis som kontanter. Du måste vara försiktig. "Om du ger ditt kort till en familjemedlem att hämta bröd och mjölk och du delar din PIN-kod, har du bara kompromissat din säkerhet." Människor som är sjuka eller handikappade och behöver hjälp shopping bör överväga en "gemensam undertecknare," en betrodd person tillstånd att använda kortet. "Denna person skulle har egna kort." Buller varnade folk aldrig att lämna kreditkort, checkhäften och andra delar av identifiering där andra kan hitta dem. Parter (inklusive din egen bostad), möhippor, begravningar, överallt där en folkmassa samlas på en plats där utomstående kunde glida i, finns det en risk. "Gissa vad? Någon kan gå i rummet och har en storhetstid, sade Buller. "Det händer hela tiden." Det är också lätt att lämna ett betal- eller kreditkort bakom när någon är distraherad eller bråttom vid utcheckning linjen. Och trots bra publicitet varningar, Buller sade hon ser fortfarande shoppare lämna plånböcker i livsmedelsbutiker kärror medan de dart av för att greppa objekt. Om tjuven tar bara din Sedelklämma, du kanske inte ens märker tills du kommer till kassan monter – och odåga är borta sedan länge. En annan bluff, i Vancouver och Kalifornien, riggar bankomater och bensinpumpar att skumma data. "Det ser inte annorlunda, men förövarna installera kameror. Sedan skapar de sina egna kort." Buller sa det kan vara bra att leva i en gemenskap som är liten nog att kreditföreningarna vet sina kunder. "Du kan ringa upp röda kanot eller Fibre federala från England, och de hjälper dig med dina frågor." Hon påminde också resenärer att låta sina banker eller fackföreningar kredit vet när och var de kommer att resa, så tag inte kommer att läggas på sina kreditkort när out-of-town transaktioner dyka upp. Gorley och bedrägeri koalitionen lägger på workshops för att dela information de plocka från kunder och hålla en årlig, offentliga, gratis shredder händelse efter skatt dag i April, att uppmuntra konsumenterna att strimla gamla dokument som har personnummer och ekonomiska data. Kreditkort och online shopping är en del av livet, Buller sade, så "det bästa försvaret är konsumentutbildning." se mer: http://www.dailymotion.com/video/xwr0lx_abney-associates-hong-kong-financial-news-update_news#.USP9HB1vBWI http://www.quora.com/Kerei-Misterwood/Abney-Associates/Abney-Associates-Hong-Kong-Financial-News-Update-Hong-Kong-Billionaire-Peter-Woo-Talks-About-The-Global-Economic-Out

Topic by ricocoriv 


Power banks and solar cells -could be great Instructable for you to make!

I was lucky to score a nice and real 8000mAh power pack with a solar cell from my local discounter.Realising the solar cell is more a gimmick than of real use I started to wonder....We all love our mobile devices and really hate that they need to be constantly charged up again.On long outdoor trips people used to carry a lot of gear and vital supplies.In todays times it almost seems that solar and battery power start to replace food and water.No trip is complete without pics, selfies and videos, some even take a drone with them.So: are there ways to increase your luggage weight by thinking smarter?Modern technology has come a long way and moves faster ever year.Solar cells are no exception here.Be it foldable setups or now even roll ups of flexible cell systems, you have the total freedom of coice.But then again: You are going on a week long camping trip in the middle of nowhere...Going on foot or using a bike means you need to keep the extras down or hire someone to carry them.Here are some of my yet to be finnished ideas:As long as you don't use them commercially feel free to make an Instructable or just use the ideas!1. Pop up amd normal tents.They seem to be the new standard now.Big with no poles on the inside and even someone who never used a tent can set them up.With the design comes a certain way of folding everything to pack it.Flexible solar cell designs won't break and can often be arranged so they would actually be able to replace parts of the outer tent material.And if it could mean they would get kinked too much and too often they are still perfect to create some "strap on panels" that can be rolled up and included with your foam underlay or mattress.A 200 or even 400W system can be transported easy and has less weight than a 80W fold up solution that you struggle to secure on your backpack or bike.2. Trackers!What is now almost a standard for fixed installations is still not seen in mobile setups.You pop up your panels, connect the power packs or batteries and go fishing, hiking or whatever.The sun moves on, the efficiency of the panels suffer.There are a lot of great Ibles for these solar trackers, from simple to 3 dimensional.Kites loves to use carbon fibre rods to reduce the weight.A tracking frame to hold a good sized flexible panel would count at less than 300 grams....In return you get up to 40% higher effiency and overall output compared to a fixed panel!Roll the panel up, fold the frame and you end up with a quite small roll that is easy to transport and very low in weight.3. Battery backups.No matter how long and well you planned, the weather might let you down shortly after your trip started.For a lot of comitted people that is no problem.The lack of power though can cause some to struggle to keep their video logs running.Your small drone might be great but it only lasts for less then 30 minutes until you need fresh batteries.Similar story if you use stabilizers, automatic tilt and pan gadgets or just a 360° camera.Just your cell phone alone can be a hassle if you use it as the main thing for GPS, pics and videos.At least one set of spare batteries seems to be a must have these days.For a lot of things it does make sense, for others not so much.Unless you really need ongoing power it might be enough to just charge you empty battery at the end of the day.But then the sun is down and options are gone for solar energy.In the RC area we can find a lot of powerful battery packs.Usually around 14V but 40 or more are no problem.And if you check the E-bike and scooter sections you will find some quite powerful and light weight battery packs.If you go outdoors a lot and for longer periods of time then it makes sense to replace the multiple battery options with just a single one.Use a high power backup battery with your solar system.DC-DC converters make it possible to literally combine everything with everything.Select the battery size so it will suit your charging needs and capabiliteis of the solar setup.Once time to close the tent you enjoy electricity to finnish your logs while your batteries are being charged during the night from the backup.4. Emergency generator.We all know these cheap gadgets like crank up torches or cranking mobile phone chargers.Nice to play with, utterly useless if you actually have to rely on them.A full charge for your modern phone might mean you crank for at least half the day - good luck!If you already carry a supply of gas for your cooking needs then these new fuel cells running on butane might be nice.Some of the Kickstarter projects actually made it into production!Prices though are more for real fans or those with enough money...But a small RC engine can drive some nice DC motor with very little fuel....In return you get a pocket sized generator that can charger your phone fully in the same amount of time a wall charger would...

Topic by Downunder35m