Has anyone besides me noticed that when you publish an instructable, it says "You're Awesome!". This is so cool, go self esteem!!!
Topic by Wasagi | last reply
Does anyone else here feel like they might as well have a full time job at instructables? I need some kind of Instructablers Anonymous group. I wouldn't be surprised if I spend 40 hours a week on here. (Can any of the staff members check that for me?) Anyways...I'm sure I'm not alone here...
Topic by Weissensteinburg | last reply
I have a hub motor 1000 watt for bicycle, I would like a hub generator that would power the motor hub with out a battery, can anyone tell me how I can get or make something like this, or ,,it takes a 48 volt battery, can I use a 12 volt battery and step up transformer , or 12 volt car generator and step up transformer, or dynamo hub and step up transformer , or would it only raise the voltage and not amps
Topic by Lylecpitts | last reply
Hey everyone, I need some help for my project paper. I want to build a self-balancing "one wheel". But I dont know where I can buy a wheel hub motor. I searched on Alibaba and found some fitting ones. A 800W 48V DC Brushless (Wheel Hub-) Motor. But i don´t know which speed motor control is the best for this type of motor. I want to use an arduino uno ! Can someone please Help me finding a motor control ? Thanks a lot :) PS: Sorry for my bad english :) I am german
Topic by Lucafaeth
I have a whelen white vertex led light head. Normally there is a 12 volt dc controller already attached to the light it self that controls the flash pattern which you can change. However some one cut the light head off the controller part and the controller cant be found so now i have just a light head with 3 wires red black and green red being power green and black being ground. there are a total of 6 leds 3 off the green wire and 3 off the black and a common power wire. my problem is i cannot figure out the proper voltage and ampures needed to power the lights. i have tried to ohm the leds (and yes i tried every which way with the leads) but i suppose my fluke 115 does not have the range needed for these lights. i connected a known working light and controller to 12 volts and mesured the power going to that light which read which read about 3.7 volts at .36 amps and each set of 3 leds being .18 amps and with out any leds connected i got 5.2 volts i just want to make sure this is correct before i put 5 volts and a resistor to them and they blow. ill post pics and a crappy diagram of what i think is in the light head
Question by Nnhalo360nn
Arduino fires up okay, but I can't get the relay to energize, so the pump does nothing, of course. Great project, but some of the steps aren't clear enough for this retiree. For instance, in Step 23, "Plug the black wire from the circuit board to the ground socket on the Arduino." Which "black wire?" There is no complete schematic, so I'm guessing at what I'm trying to find. Also, the Arduino sketch in Step 19 (Randy Sarafan) didn't compile or load into the Arduino until I inserted the missing semicolon after the line "int dryValue = 700" Could sure use some help, as Mama is looking forward to having her vegetable plants watered when we're not home! Thanks in advance! --Fred Lochner, Boulder, CO
Question by fredlochner | last reply
In this city it is a political chore to get speed bumps put in, particularly in the alleys. For the most part, bicyclists just bu-bump over them; but, when u are a transportation cyclist like me (often heavily loaded) and u must negotiate these suckers daily or hourly, u begin 2 think that a few more inches between their two halves could make a big difference in time, money and wear. Note: some of them have been installed in an arcane manner to, for example, accomodate intersecting rainwater channels (which are cut into the pavement). All of the above problems could often be circumvented by simply widening the space between the two halves of these devices by a few inches---like three. Slightly wider space between the two halves, called the "crotch" by some, would make it easy to ride down the alley and avoid both pinch flats and bu-bumping, bu-bumping, bu-bumping. P.S. An full swing from a sharp axe won't work....
Question by Rapel Teetaw | last reply
I am trying to make a softbody animation in Blender 2.46, but there is no deflection button so it can git a floor. Is there any other way to make it so the objects react when they hit each other? On the tutorials I have seen there is a tab called softbody collision. Mine only has collision and the options bake and self collision. I don't know if they are using a different version or what. Can anyone help?
Topic by heavy.metal.nguyen | last reply
I'm hoping someone can help. I have a handicap that makes opening drawers and cupboards impossible via touch. Aside from foot. I've been trying to come up with a solution for this for a while now. I need something that takes up little, if any drawer space. Is relatively cheap (since it needs to be replicated across multiple locations). Can be opened/stopped/closed via a single foot pedal. And that will stop if it encounters some sort of obstruction. Actuators that are able to open drawers to the size needed are very expensive, and I'm unsure if they have the stop function in case of blockage. Anyone have any suggestions/
Topic by sanguish | last reply
I am creating a self watering system for plants. I have found a diagram for a water detection circuit which illuminates an L.E.D when there is enough water in the soil. However, I would like to modify it so it activates a servo to open a pinch valve then when there is enough water it returns the servo to it's original position. I have 3 problems. The first problem is I'm not sure how to create the circuit that activates the valve. I know I need a micro controller and a servo, however, I have no idea of the exact components I need or how to wire them up. My second problem is that I don't know how to integrate the two circuits together. My final problem is I'm unsure of how to program the micro controller. Here is the water detection circuit diagram. http://www.electronic-circuits-diagrams.com/homegardenimages/3.gif Any help would be greatly appreciated.
Question by kaaaaabooooom | last reply
For a while now while I am working on an unpublished instructable the auto save function I believe is backfiring. Instead of saving it actually deletes whole sections. I thought oh well, I can always go to the history section and copy/paste or click revert. To my horror it deletes the text from that step all the way back to step one, aaaaaaaaaaah. I thought perhaps that this was isolated, to the one you might be working on. Nope, when I opened a second one I had been working on, the intro has now been deleted. Yes, including in the history as well....
Topic by iminthebathroom | last reply
Hi all, I am always amazed at the ingenuity here and after many years of being fascinated I would like to ask my first question. I'm thinking of getting or converting/building an electric cycle. I've been told by local dealers that none except the very expensive have a recharge facility for sat when you go downhill or are freewheeling, That seems a waste to me so I am thinking ... why not buy a used wheel with a hub motor and fit it at the front wheel and that raises the following questions in my mind ... Can hub motors be used in reverse as generators? Would the output be speed (rpm) dependent and if so then if said cycle has say a 36 volt system would it only charge the battery if the 'generator' is producing 36v or close to? If so would it be better to find perhaps a 24v hub motor to use as a generator and charge the battery via a variable input, 36v output step-up? I appreciate it will be less than 100% efficient when both using electric at the motor and charging at the 'generator' but would anyone have any idea how inefficient? I'm fit enough to cycle on the flat but would appreciate help on the hills!! I assume I will need a diode or similar ... does anyone know where I can find a suitable circuit diagram Lots of questions I know ... sorry. David
Question by HRobinson | last reply
I need some help here and I hope that there is someone that can answer this question. I have a 2003 Toyota Tacoma and I want to add some bigger fender flairs on the truck, I want to use what are called pop rivet nuts. The pop rivet nuts are inserted just like a pop rivet but it has a nut on the back of it so that you can use a small bolt. The screws that came with the fender flairs are called self tapping screws and they seem to wallow out after time. I need to know what the thickness of a typical fender is so that I can order the right pop rivet nuts. The pop rivet nuts only come in sizes for gauge metal. Does anyone know what gauge a finder is so that I can order the right pop rivet nuts. Thanks for any input.
Topic by fishhunter1957 | last reply
Hello,I'm interested in making my apartment greener and more self sufficient than it already is. I want to do this for many reasons, but mostly to see how far I can take this. I'm sure a lot of this will depend on what I can put up with, but i'm looking for some ideas of things to implement. I'll follow Instructables if they exist about it and if they don't, I'll create some to document this.There are some restrictions: I am a renter and I don't own the place. I can make some changes, but I can't cut the walls out or replace appliances. I also can't put anything on the roof or outside of my apartment. I'm also very serious about conserving floorspace in my apartment and not accumulation a lot of junk. I need a bit of space to do my projects and have some sanity in this place (I live in NYC). This means no giant compost piles or what not in my living room.Here's my thoughts on things that I will need to work on:Measuring my consumption of thingsReduce energy useReduce energy wasteProduce some of my own power (Solar? I have a big window)Alternate lighting and heating methods?Making my own food to reduce the amount of waste packagingUsing local ingredientsjoining a CSA (just did that this week actually!)Growing some of my own foodReducing garbage and waste waterReusing things that I canCan you add to the list? Anything that you could help clarify? Anyone interested in taking the challenge with me? Thanks!
Topic by drocko | last reply
The first picture is of my costume that i call BURN OUT, it has stilts to make me at least as tall as a few people. Then the next picture is of a costume i designed for a friend. It is called ONYX STORM. I need to know how to see out of burnout's helmet. and i need to know where to start on ONYX STORM. so heres a wrap up of the two; BURN OUT: burnout is a genetic experiment issued by the military. he is a heat producing bio-form that was issued a suit of armor both to protect him from the heat his body produced, and to institute a sedative that has kept his emotions under control and kept him alive for hundreds of years. then they trained him to fight and adapted his suit for battle. but after accidentally destroying the base he was housed in, he started to run out of the sedative and nearly died until he ran into ONYX STORM. ONYX STORM: onyx was a five years old when he was taken into the military. he was told his parents were killed during one of his outbreaks. they were supposably killed during the northeast blackout, which he caused. he is a bio-form that produces so much bio-electricity that was powerful enough to power many testlaunches and research for the military. then he was issued an aging drug to make his body age much faster, then put him on a sedative similar to burn out's. he was put through military training and finally found out what had really happened to his parents, who where killed by the station he was in. in a blind rage he destroyed the base he was in and built a hidout outside of detroit. where he found burnout. that's it, the back story for both characters. as you can see not much is known about burn out.so any ideas on how to see out of the helmets, how to get the various pieces and where to get them cheep?
Question by DehLeprechaun | last reply
Hey, I want to build my own electrical car / velomobil to drive to work.Here is the "Go Fund Me " Link:https://www.gofundme.com/f/cstmc-elektromobil?utm_source=customer&utm;_medium=copy_link&utm;_campaign=p_cf+share-flow-1Thank you very much for your Help
Topic by gorillagamingemail
Hello ... I would like to kindly ask anyone, that is good in electronics for help. I add 3 pictures of the SPY PEN and my questions are about the small camera(JH 70-B). I would like to make this camera to make VIDEO via a cable (not to write it on memory) ... but just by a (RCA) cable so I can use any recorder I would like. I have a few questions, that are bothering my mind and I can't help my self :( 1. would the camera be able to give video signal by it self or does it need some part of the PCB board ??? ... (I mean ... if I would give + and - to some of those pins ... and find one pin, that would give the video signal) 2. If I need the part of the PCB board ... could you show me, where would be the VIDEO signal ??? And where would be +/- ??? In my (totally amateur) opinion, I think, I will need a part of the PCB ... but I don't know, which of all these components are part of the "camera"to give video signal. Thanks for any advise ... zholy
Question by zholy | last reply
Hello im having trouble opening the Mag screen I'm trying it for a while now ive uploaded some picture of it, my problem on it is that I have very bad connection to dvi connecter (when im moving the cable, pushing it in its working when I leave it it disappears) I took out 4 screws on the corners and as u see I tried to take out the lower part of the screen but it still doesn't open I only wish to repair the bad connection, any help will be appreciated thanks ahead mike
Topic by mike2k4u | last reply
For a school project a partner and I are attempting to build a self controlling quadcopter. It should be able to use a specific input from a photo transistor and the be able to navigate on its own. The only problems that I can see running into at the moment are finding an atmega compatible rotor controller, and that not including the propellers it is going to be under two inches (5.08 cm). I would appreciate any assistance possible in finding a motor controller of this size, and will keep this post up to date with our project.
Topic by Kaptia Teramo
Hello, I am interested in making a energy source similar to iron man's arc reactor in the fact that it is small, self contained, and and powerful. I would like it to be hand-held, but I can deal with slightly larger or even desk size. It needs to be long lasting. I am well aware that an arc reactor is fictional, but I just need something that may be similar. It can be a large project (I have time) but needs to be not super expencive. Around $500 is the max I can go for! I hope someone can help, 13islucky
Topic by 13islucky | last reply
I am looking to expand my electronics knowledge. I already know the basics (and a bit more), so please no suggestions for the basics. I know enough to build my own basic custom circuits. I am very knowledgeable about the Arduino (I use it practically every-day). I know how to use resistors, capacitors, transistors, most diodes (LED, Photo-resistor, current-blocking, one way, zener, etc.), and much more. I am self-taught, but want to further my education. I am VERY interested in robotics (I plan to work in aerospace engineering when I'm older), if that helps any. I am in need of good books to read on. I've gone through most of the projects in Forrest M Mim's books that I got in a kit from radioshack. I really would prefer some eBooks, though. Free is good, but I'll pay if it is necessary. Thanks! (:
Topic by freethetech | last reply
Looking for help on how to adjust of the belt for the self propelled portion on my Scotts lawnmower.
Question | last reply
I wonder if anyone could advise me as a newbie (blush)!I have just bought a self contained RGB controller with PWM'd outputs:http://www.dotlight.de/shop/product_info.php/cPath/263_266/products_id/828?osCsid=c99bcde36c901d8ae197dcf038b315d3What I want is to use this for the lighting in a vehicle (12 - 14.6V). The LEDs I have looked at and bought one for testing are:http://cgi.ebay.com/High-brightness-1-pcs-3W-RGB-full-color-LED_W0QQitemZ230093694925QQihZ013QQcategoryZ66954QQrdZ1QQcmdZViewItemNow - the vehicle has a removable rear cabin leaving only the front cabin LEDs connected at times. I will need say 6 - 7 LEDs for the rear cabin and 2 - 4 for the front cabin depending on eventual light output.Should I drive these LEDs with constant current drivers for each colour? Will they work with the PWM output of the controller?I understand switched regulator type circuits won't work with the PWM output?I guess I would need several contant current regulators to power the array but am struggling on how many and how best to connect them?!?Thanks in advance!Chris.
Topic by machineage
While mowing through some desighns for a play wood outrigger, i came acorss some fairly intresting consept. that i should use straight timber battern inbetween thin nails to make the curve for the side pannels (for the hull) but of coarse i cant find out what a stright timber battern is or how to make one. so i thorugh my self at the mercy of the great sailers here at instructables
Topic by Jumpin Jehosaphat | last reply
I am experienced with playing with earphones once attached 2 pair of ear phone together' i saw a speaker thought of connecting it to comp.and did so by simply soldering it with jack but realised that energy coming is too low as compared to power of speaker so I want to add a power source but dont know where to how to connect it help me Extra power may be supplied from usb or any battry in future planning to add some more speakers
Question by Atul009 | last reply
Im working on a self propeld wooden boat for my 3 yr old daughter i have a moter i pulled out of a standerd stand up house fan. but it a 120v power requirment. i've thought solar power but im at my breaking point i dont want to go and spend 150 dollars on a car portable air compresser a/c component help please. Ps please forgive my horrable spelling
Topic by lyricalfate | last reply
Hi everyone! I don't really know what category this should be put under, if anyone think it's in the wrong place feel free to move it. I am a guy from Sweden who are backpacking around the world and I am currently in Perth, Western Australia. I'm going abroad to Laos tomorrow and I will stay in south east Asia for about a month and then come back. My problem right now is that I have some luggage (extra clothes and camping gear) that I need to store somewhere during that time. I called a self storage company a couple of days ago from Coral Bay and booked a locker at their facility, however they forgot to mention that I needed to be there before five p.m. when the office closes even though I explicitly asked if I could come by later since I would arrive with the Greyhound bus. Does anyone know any fairly cheap (the lockers in the airport cost 8$ a day, and that is a bit too much) place that is open at this time, or even someone in the area who could could spare some space for about 1/2 cubic meter of luggage until I come back? If so, please contact me asap either here or on 0405682652.
Topic by Jur | last reply
Hi everybody. I am going to make a loft bed that will raise automatically when my kid gets out of it. What I'd like to do (please see attached files) is suspend the bed via pulleys and cables attached to one weight. The weight would be just a pound or two (trimmable, of course) more than the frame, mattress, bedding, etc. so it will raise itself until the weight hits a stop leaving the bed a few inches from the ceiling. If necessary some friction could be used to keep the speed reasonable. At night it should pull down quite easily, and I believe that with this layout, it should come down evenly regardless of where it is being pulled. I had wanted this to "float", but since it is going to be in a corner anyways, I may run a couple tracks down the wall with hardware to guide the bed and keep it from swinging. The big question I have is how to fasten this to the ceiling. It is drywall with joists above. Offhand I'm guessing the bed will be say 110 pounds, so about 225 pounds hanging from the ceiling with the bed empty. I'd like to have an extra, what, 500 pounds wiggle room? Worst case scenario, two 150 pound people sitting on the end of the bed... I mean I can explain that this is a one person only contraption, but I REALLY don't want it coming down regardless of what gets thrown at this thing. Any ideas, criticisms, feedback, will be so greatly appreciated. I think this could be really awesome, and I know it will make my son flip out! He's got a very small room, and this will free up so much space. Thanks again. John
Topic by jtiii | last reply
We have a problem with kids coming into our garden, vandalising our plants, breaking into our shed etc. we have decided that installing a cctv system in our home is a good idea as even if it doesn't stop them coming in, it will be solid evidence to take to their parents. problem is, we have regular power cuts and i would like the cctv to be recording 24/7/365 (especially in the shed because that is where our bikes get stored) i have two 12v 7ah SLA batteries that i am donating to the project, iknow that they need 13.8v and around 500ma to charge. i need 16 camera outputs, and then a couple of spare outputs for aux devices (router to keep it connected to the internet, mics, infra red lamps etc) the dvr its self wants 12v 5 amps input so i think for that i will make another psu just for that with maybe 2 or 3 12v 7ah sla batteries. i have baisic electronics knowledge, have access to pcb printing facilities and can use eagle. any help at all would be amazing, the main things i need to know is: how to get 13.8v from 240v ac, how to power all the cameras from 240v ac and have a smooth switchover from mains to battery. thanks in advance - luke
Question by ljarrald1 | last reply
Hey y’all, I have been searching for a way to create a laser trip wire that doesn’t involve two units that line up to have the beam broken. Is there a way to emit a laser that triggers LEDs or buzzers just when the laser is broken, all coming from one unit? I’ve read about the LED/IR type projections and that’s the closest I’ve found. Any help is welcome. Thanks!
Question by langdoncobbb | last reply
I'm not at all techy, but I need an ion generator for a kit that I sell and I dont want to pay the huge cost for the hobby kits. Can anyone help me with a simple way to build one my self, I want it to be 12v battery powered, and small enough to fit in a 4 in pvc pipe 6" long. I want it to blow out on one side with its own ion wind. I need to keep the cost to about 12.00 a unit. Any ideas would be appreciated. I can solder and read schematics, but I've never built a board before. If someone could build these for $12, we might be able to work a deal. silo
Question by silosounds | last reply
Hi everyone !*** Long introduction *** My name is Romain, I'm french, sorry beforehand for my bad English. I'm a systems and network engineer and I like to create and design things to improve my day-to-day life. One of my main concern is about what I eat everyday and I think sometimes it's overly complicated to respond to simples questions : is it a good or a bad product ? is it good or bad for me ?.. To solve this problem I try to learn things about nutrition, how to cook well (without losing a lot of nutrients for example), what are healthy products etc. In France we try to learn to people to eat fruits and vegetables (with a leitmotiv : "Manger 5 fruits et légumes par jour" / "Eat 5 fruits and vegetables a day") OK. But how are fruits and vegetables grown? with pesticides, chemical fertilizer, etc. :-/ Not cool at all ! Best solution : buy fresh organic products. But it's still more expensive than other (logically). So another solution : grow your own food *** Short introduction *** My name is Romain, this is the summay of my thinking : want to be in good health ? -> eat good food want to eat good food ? -> grow your own food My project / idea : Create a thing (rack, table, or whatever) to grow my own food (aromatic herbs, some vegetables, fruits) everyday, all year round. Some constraints :cheap but solidmovable (go indoor or outdoor) / lightweight / can be taken to pieces (-> plant pot on the one hand and rack on the other hand)self-sufficient in waterelectrical need only in winter (indoor) / low power -> LED light to help grown for darkest daysre-usable (no disposable component)scalable (possibility to create another same "thing") to multiply size of the gardenIdeas :Have a water storage in the top of installation (not too high, to be "easily" filled) but on the top to use gravity to water the plantsHave some specials lights to help plants growing when winter is arrivedHave wheel to be movableHave sensor to be (a little) connected, for me, not a specialist of cultivation, like light sensor and humidity sensor => which would drive the water valve and light power on/offMy little flat will not allow me to be self-sufficient in food, but to have some precious ingredient for everyday cooking.So if anyone had the experience of doing all or one part of what I thinking about, I'm open to all suggestions or recommendations. Thank you, Have a nice day !
Question by Romain042
Hi everyone !*** Long introduction ***My name is Romain, I'm french, sorry beforehand for my bad English. I'm a systems and network engineer and I like to create and design things to improve my day-to-day life.One of my main concern is about what I eat everyday and I think sometimes it's overly complicated to respond to simples questions : is it a good or a bad product ? is it good or bad for me ?..To solve this problem I try to learn things about nutrition, how to cook well (without losing a lot of nutrients for example), what are healthy products etc. In France we try to learn to people to eat fruits and vegetables (with a leitmotiv : "Manger 5 fruits et légumes par jour" / "Eat 5 fruits and vegetables a day")OK. But how are fruits and vegetables grown? with pesticides, chemical fertilizer, etc. :-/ Not cool at all !Best solution : buy fresh organic products. But it's still more expensive than other (logically).So another solution : grow your own food*** Short introduction ***My name is Romain, this is the summay of my thinking :want to be in good health ? -> eat good foodwant to eat good food ? -> grow your own foodMy project / idea :Create a thing (rack, table, or whatever) to grow my own food (aromatic herbs, some vegetables, fruits) everyday, all year round.Some constraints :cheap but solidmovable (go indoor or outdoor) / lightweight / can be taken to pieces (-> plant pot on the one hand and rack on the other hand)self-sufficient in waterelectrical need only in winter (indoor) / low power -> LED light to help grown for darkest daysre-usable (no disposable component)scalable (possibility to create another same "thing") to multiply size of the gardenIdeas :Have a water storage in the top of installation (not too high, to be "easily" filled) but on the top to use gravity to water the plantsHave some specials lights to help plants growing when winter is arrivedHave wheel to be movableHave sensor to be (a little) connected, for me, not a specialist of cultivation, like light sensor and humidity sensor => which would drive the water valve and light power on/offMy little flat will not allow me to be self-sufficient in food, but to have some precious ingredient for everyday cooking.So if anyone had the experience of doing all or one part of what I thinking about, I'm open to all suggestions or recommendations.Thank you,Have a nice day !
Question by Romain042
Hello All: I found this antique brass lamp and would like to restore it. I'm looking for information on how to clean it up and remove the tarnish. There's the chemical way (for instance, Brasso or others) or the "natural" way (I saw a vinegar, salt, flour paste). Has anyone had any experience with this that they can share? Also, I'm looking at what the final restoration will be. I have 3 ideas: 1. Restore it to it's brassy, original self with a torchiere globe (as in the last picture), 2. Restore it to original but modify it with an RGB LED nightlight in the base (next-to-last picture), 3. Clean it up but give it a steampunkish look by painting it a copper color, adding Edison bulbs to the 3 armatures, and maybe some etching on the globe. Any other ideas? Thanks, Kevin
Topic by nivsrom | last reply
Hi people im trying to make a small amplifier that can work with cellphones and the output must be atleast 5watts,and it must use batteries,if the circuit need the lm386 tell me how to use it and how to make it more powerful.thanks in advance
Question by Salesh | last reply
I had this idea for a rain barrel + solar timed pump+ drip irrigation system, but was having trouble about the pump itself. I would like the pump to let water drip every couple of hours, for about a week. I have had no such luck finding this item online or otherwise. Any information on such a product, like how to build or where to buy would be enormously helpful!
Question by Nekkyo | last reply
I am doing a science project to test the difference in number of suds between different types of foam sponges and nylon loofahs. At my booth, I would like to demonstrate the difference in suds by having water available and adding soap. My question is: Does anyone know of a way that I can build a system that would allow me to dump and filter/recycle the soap water into clean water so that do not have to keep running to the bathroom to get fresh water? Any help is appreciated! Thank you!!
Question by donotfreeze | last reply
I am planning on constructing a completely self sufficient home, with the energy created in DC using a water wheel, windmill, and/or generator. I wanted to stay away from inverters (unless REALLY needed), and wonder if i can make dc plug sockets and plug the AC appliances into the DC (building rules and regs wouldnt apply) . They would mainly be simple kitchen appliances eg mixers, and a lot of tools. They would be run from a bank of 12v batteries. i would also use DC lights in the house.i thought this may be possible from this instructables- https://www.instructables.com/id/Run-AC-Tools-on-Batteries-Directly,-without-an-Inv/any help would be GREATLY appreciated!?
Question by joel.riley1 | last reply
Is there any possible way to make the range better through the controller its self not the car?
Question by dozer321 | last reply
Hello, I was wondering if someone could help me with a (hopefully) simple electronics project. I wanted to recreate the flashing properties of flashing construction signs (see video below) with LEDs. I bought a 555 timer and created a circuit similar to the diagram below. I ran into a few problems though: The period of the LED's on/off cycle was normally 90% on and 10% off. With some tinkering of the resistances I achieved about a 1:1 ratio of on to off but to replicate the traffic signs I would like about 80% off and 20% on or less. This circuit is somewhat bulky to make only 1 LED blink. Ideally, I would like to have 20 or 30 either all running on the same circuit or all self contained (with less complicated circuitry). At this point I almost want to get my hands on an old flashing construction sign if only to copy the circuit but I know of no way to do so legally. If anyone has any knowledge of these lights or suggestions of any sort, I would greatly appreciate it. Thanks, Daniel P.S. I have a very limited knowledge of electronics, so feel free to dumb things down a bit. Flashing Lights from Peter on Vimeo.
Topic by Strombergundy | last reply
Hi! I have a headband magnifier for working with tiny models, and it has two lights on it, one on either side. Each is self contained with a switch and battery connectors for 2 AAA batteries, and a small incandescent bulb (see pic). What I would like to do is hack this and make it use LEDs I am "ok" with certain skills, like soldering and such, and have the tools. I am hoping someone can tell me what LEDs I can use and resistors I might need to make this work within the existing housing. Thank you!!
Question by kurtnotkirk | last reply
Hey Everybody, I'm new to the community here, and i am hoping that with so many great minds on this site, some great ideas will be generated. the deal is, for a competition, my school needs to build a small car, around 1foot by 1foot, and it is propelled by three average sized rubber bands, it need to travel three meters straight, make a 90 degree right turn on the spot and travel 2 meters to stop in a parking zone, it has to turn and do the whole course unaided, Any great ideas? Thanks for helping me out
Topic by techball | last reply
K, so I've been trying to make an instructable for about a year now, but I always pick projects that are apparently too ambitious for me as I never finish them... But I just had an idea as I will not be home this sumer so I won't have the joy of attempting to grow peppers this year... which means I'll have to try over the winter months. So I saw this instructable and thought it seemed like a perfect idea https://www.instructables.com/id/Matts-Original-Inverted-Planter-aka-IPlanter/ And then I started getting ideas of how to update it and make it better... however, I know a sum total of about nothing when it comes to plants... Last year i just bought a pepper plant from the local greenhouse, fed it fertilizer sticks once every other week, shoved it on my shed roof and hoped for the best... It succeeded, but I'm not yet willing to say it was skill on my part. So My first plot for an update came from this instructable https://www.instructables.com/id/Upside-Down-Hanging-Self-Watering-Earth-Filled-Box/ Since the pot will be hanging upside down and all that, checking the soil will be hasslesome, so a self watering system seems like a good idea, but this just seems complicated to me... So I've seen these things (http://www.amazon.com/Aqua-Globes-AG011706-Watering-2-Pack/dp/B000FHAJ90) on tv from time to time and was wondering how they work? Like could I just cut off the base of a wine bottle and shove the neck into the soil and then just fill the wine bottle as needed (or some other kind of glass bottle... i can cut glass easy enough)? My next though was when the instructable told me to cover the hole with plastic wrap so nothing leaks out onto the floor... But then I was thinking if a cork could also do the same task... I was thinking of drilling a hole through it and then cutting it into 4 pieces and re-assembling it around the stem and corking the bottle from the inside... Since I made the cuts I figure the plant would just move the cork out of the way as it grew and would eventually be big enough to just take the place of the cork... but again i don't know enough about plants to know if this would actually work. My last question is more of a what type of plant should i put in my bottle... I personally like peppers but the last time i grew them was on the roof of my shed and I'm wondering if they need more sun then they would getting sitting inside and upside down through the winter... and if not, what kind of plat could I plant in an upside down planter designed for indoor winter use? Also, is it true that used coffee grounds make for good fertilizer?
Question by coolname123 | last reply
I am currently designing a duel printer head for the makerbot platform, and I need some help with how the decoder software whould reconize to move the tool head over an millimeter to change colors. I am also intrested in wheter I whould need to do any reprogramming of the motherboard on the makerbot its self.
Question by dgi10 | last reply
Hi!I really like building stuff. Recently I builded a pop pop boat and it was great fun! I've also builded other stuff like a self driving car using Arduino and some 3d printed fidget spinners.Now I'm out of ideas of stuff to build. I really want to build something like a sun burner, a lock or similar. Does anybody have an idea of something to build accept for the stuff I mentioned? Some stuff I have are steel, cooper and aluminium pipes, wood, metal sheets, 3d printer with PLA, bearings, glass sheets and Arduino. The thing is that I only have hand-tools, so no power tools accept for a drill.Sorry for my bad English. But any tips and/or tutorials is appreciated!
Question by imimbergman
Last year was the first time I did any gardening. It was a result of an argument with my 3 year old where he steadfastly insisted that vegetables came from Kroger, not plants. As a result I started small with 6 pepper plants. I used this instructable for a self-watering earth box. It worked really well. This year, I moved to 8 bucket fulls of vegetables. I've now maxed out what my porch can hold and want to move into my yard next year. I have an idea for a larger scale self-watering raised bed system that I wanted to get some feedback on before I started building. I'm going to get a few of the small, hard plastic kiddie pools like these, approx 5' across. I'm going to bury those and build on top of it a raised bed with a wooden floor. In the floor I will cut holes and install several of the pond baskets referred to in the above instructable. My theory is this will work similar to how the earth box did but on a larger scale (approx 6x6 raised bed). Would love feedback and direction on this project. I feel like it will work, but am a complete newbie and would love a bit of help on it. Thanks!
Topic by Tim Grahl | last reply
I recall seeing an 'ible a while back, it had to do with downturn of the government and becoming self-reliant... Something along those lines. But more importantly, I want the link it had inside, to an old military guidebook of some sort. I remember it had a red picture of a soldier with (maybe) a communist symbol as the intro pic. I tried searching over and over for different things... still to no avail. Thanks.
Topic by nickodemus | last reply
My iron heat very well at 1~2 minutes (30W) and tip also get hot as rest of the metal part but as shown in picture (Working) part where solder works and heated (Not working)/tip doesn't heat the solder ! i don't know why?? don't tell me temperature not high at tip (i really burned my self while i was checking that tip is very hot) is it solder problem or iron problem ?
Question by abdalrahman.gamal.90 | last reply