What is a clear gel-type thing that can be used (kind of like jello) to suspend objects?

I want to make a counter display for a Halloween kitchen, using quart and gallon jars to 'store' ears, fingers, rats, etc.  It needs to be relatively cheap, and easy to find ingredients.  Non-toxic would be fantastic!  Thanks for any help.

Question by evil66   |  last reply


How can I (electronically) prevent an LCD monitor from going into standby mode due to lack of a video input signal?

I have a dead LCD i want to turn into an artists light table. Q:   How can I prevent the monitor from going into standby due to no input signal? In other words, I want to make the backlighting remain on without connection to a computer.  It is a HP 24" widescreen that is able to be turned, tilted, and rotated in every direction over a wide range.  For this reason (and because I don't feel like building another box) I would like to use the existing enclosure and I have already disassembled and removed the actual LCD screen, leaving just the backlighting components. I am fairly well versed in electronics and I have tested points on the circuit boards in attempt to determine what input the circuit requires to NOT enter standby. There is a wiring harness from the LCD driver board to the inverter board with 14 wires which oddly enough, is actually labeled!  One terminal is labeled 'on/off' which I'm assuming would refer to the standby feature. This terminal measures +3.2v when the backlighting is on (not in suspend) and 0v when off (standby). I tried to jumper this to a spot on the board that is also 3.2 during standby to no avail. Can anybody help??? Thanks!

Question by clint taurus   |  last reply


Making a magnetically suspended puppet. Answered

Hi, I'm thinking of making a magnetically suspended puppet. The idea is to make a puppet with a neodymium magnet in its head, and suspend it under an electromagnet, using a microcontroller to control the (DC) suspension current. To regulate the current, I'll probably use a D/A converter chip controlling an op-amp current sink, though I might use low-pass filtered PWM D/A conversion. I was thinking of a way of sensing the vertical height where I put a small chunk of metal in the head as well as the magnet, modulate the suspension field slightly at a high frequency (20 kHz?), and have an extra sense coil around the suspension coil. The idea is there would be an induced current in the sense coil from the modulation. This would change as the metal chunk came nearer to the centre of the coil. The signal from the sense coil would go through a high-pass-filter (to remove any low frequency components like mains), an op-amp rectifier, and then a low-pass filter, to produce a sense voltage. I might try both para- and dia- magnetic metals (iron and aluminium) to see which works better. I'm not entirely sure whether this will work, but I'd like to try it as it seems more elegant than using a hall effect sensor. The questions I have are: - How would I go about calculating roughly what length of wire and current I'm likely to need to suspend a given weight? Just a pointer to the relevant maths should be OK - don't feel like you to have to spell it out. - Does it make any difference whether the electromagnet is long or short along its central axis? I had an idea that the field from a longer coil might extend further below the magnet than one from a shorter one, but I don't know if this is so. - Does the method I've described for sensing the height sound practical? Thanks for any help, andy (ganglion)

Question by ganglion   |  last reply


Desk Support

Hey boys and girls. Over the past couple of weeks (due to work, mostly) I've been building this computer desk, the original here, and a slightly modified one. I've built it using 3/4" MDF and have it painted a gloss black, similar to the modified version. I'm currently stuck on what to do for support. In the original, he uses file cabinets and some scrap material for supports. In the slightly modified version, he uses desk legs from Ikea.I'd like to do something simple, but I'm kinda lost. I've had two ideas floating around my head for a while but I was wondering if their were any other suggestions y'all might be able to throw at me. First, I was thinking about making legs out of chain-link-fence style posts.Then I had the idea to suspend it. Attaching a cable to the front "bulge" on each side (see pic.), and attach the other end of cable to the wall. Using a piece of 2x4, or the like, screwed to the studs in the wall to support the back edge's. (I hope that makes sense). I'm thinking suspending it might work, but would require a bit more work.The idea of a floating desk sounds really cool, but I can't think of another way to achieve the effect.Any thoughts on getting this thing off the floor, minus the saw-horses, will be greatly appreciated.

Topic by smkoberg   |  last reply


How do I make a ceiling suspended, counter weighted table top (5' x 9') on pulleys? Answered

HO guage train base platform (~ 5' x 9') needs to be suspended from ceiling rafters. I want it to be on a set of pulleys. It needs to be counter weighted for easy access from rafters or placed out of the way up to rafters

Question by RNeil   |  last reply


How do you make fake milk suspend in air ?

What are the material's i would need to make it from scratch?

Question by aevelyn   |  last reply


How can you suspend a china cabinet hutch above a buffet?

What is the best way to convert one of these http://www.dutchcrafters.com/Amish-Craftsman-Mission-China-Hutch/p/3956  kinds of things with a hutch stacked on top of a buffet to one of these http://www.rockler.com/CustomerGalleryDetail.cfm?Project=403 that are raised up, so we can use the buffet surface?

Question by sharpfangfaerie   |  last reply


Electro Magnets

If an electro magnet is suspending something in an vacuum environment, will it act as a medium? (Will sound waves be able to pass through the magnetic field?) Thanks

Topic by Weissensteinburg   |  last reply


Why are there magnets around the DVD laser player? Answered

I just disassembled an old DVD player. The laser is 'suspended' between two fairly powerful small batteries. Any idea WHY the batteries are there? The link below shows the laser and the magnets. Video

Question by pleabargain   |  last reply


does anyone know what oil is used in making grain of rice necklaces?

There are necklaces that consist of a tiny vial with a grain of rice in them with usually your name written on them. They suspend the rice in a clear oil. I was wondering what oil is used. Thanks!!

Question by phenixa   |  last reply


Need to know about chains?

Hello guys, My question is about how chains and their links work. We know to old saying that a chain is only as strong as its weakest link. Regarding links, assume a 1000lb. weight is suspended by one oval shaped steel link. Each of the ends of the oval link, with one end to the hook and the other end to the weight, are holding in tension 500lbs, 1000lbs or another amount of weight? Thinking about it another way, for the same 1000lb weight, if now suspended by a chain of 10 links of the same types of links, is the 100lbs evenly distributed to the 10 links where each link is holding 100lbs plus the weight of the additional links below it? If so, then the more links there are in the chain, the more weight (tension force) the chain can hold. Correct or does it not work out that way? Please clarify. Thanks, Bretina

Question by Bretina   |  last reply


Best Anwser Totals

A couple of days ago I had a "Best Answer" to a question regarding suspending a kayak from a ceiling.   Today I find that BA was removed from my total along with the author's response.  It also seems that the question has been removed from the Answers section.  Can questions or Best Answer ratings be deleted by the author? 

Topic by diyoutdoorsman   |  last reply


how do I remote control light a candle?

I was hoping to light a candle using some kind of remote control. It can be wired. It's to a candle suspended in mid air using chains. I wanted to light it remotely for special effect. :) Would appreciate any thoughts on this! Thanks very much!

Question by    |  last reply


Question on plant cell life?

Hey, As someone who wants to try micropropagation I would like to know how long plant cells can live when cut from the main tissue that they're found? And if the liquid that they're suspended in and the nutrients really make the difference can I be advised as to what solution to make up for transport? Any help would be great, Thanks, Tom

Question by thomas9666   |  last reply


Acrylic Heating Element - Questions for an electrician and acrylic expert

I'm trying to build a heating element suspended 1" from an aluminum surface, and 2" below what will be a piece of acrylic (hopefully up to 1/2" thick) suspended by aluminum covered 2x4's. I want to have a rheostat (I think that's what they're called) for variable control of the heating element. The width of the element is undetermined, although 1/2" is probably close and this may be of little relevance. The aluminum case itself is 21"x6" and 3" deep So far, I've harvested a coil of Nickel Chromium from a cheap space heater but in trying to create a suspended piece, I've done little but destroy my NiChrom. It was cool, sparks and all, but I'd like to get it right this time. I do not wish to use a torch or heat gun as the pieces are to be wide and the heat must be even over the width to create an aesthetic bend. I will post some photos of the pieces tomorrow. Feel free to throw your hat in on any questions you want to answer. Electric Questions: How much NiChrom. do I need to heat 1/2" acrylic to around 400 degrees (F) for malleabiity? What is the best way to mount or suspend the nichrom.? What is the appropriate method to attach NiChrome to the wiring? (My home made coil using 1/16" copper wiring as a cast was sound in theory, but practice yielded sagging of the strip when active, and eventually sparky explosions at the mounts, after which time this question came to mind.) What kind of Rheostat do I need? What kinds are there? What's the difference? Can I get away with using a 120v/600w Dimmer switch instead (please say 'yes')? Acrylic Questions: What is the ideal heat for bending thicker acrylics? Would a fan below the heating element help disperse the heat evenly over the acrylic, or mess up the dispersion? Can a heating element such as this create sufficient heat to 'weld' 2 pieces together? Is this even possible? Thanks. I'm sure I'll have more questions before you can answer those. Peace - Ian.Wms

Topic by Ian.Wms   |  last reply


I want to make a abstract plastic chandelier, it wont have a "normal" form..

I want to make a abstract plastic chandelier, it wont have a "normal" form...  more abstract so it will look like a blob of  hollow floating glass suspended above a stage... it will have lasers and coloured lights shining through it.... any suggestions as to what type of plastic? attached is an art instillation that gave me the idea.

Topic by bbigssor   |  last reply


Do you think this is fair?

So I have 2 friends who got in a fight about a week ago, after school, and off campus.  Someone videoed it, and put it on their facebook account.  One of the fighters got suspended for school for a week for the fight, despite it being after school, and not on campus. Do you personally think this is an unreasonable punishment, or is it?  What do you think of this situation? I want to hear your opinions here, and encourage a good discussion.

Topic by DJ Radio   |  last reply


2 Minute Meals -- Your favorite breakfast?

2 Minute meals are fun, but in the morning, if you wake up too late, they can become necessity. I've made "oatmeal" in the past, just a little water and some instant oatmeal, in the 'wave for 30 seconds, and its warm. I call it "oatmeal" because its just instant oatmeal suspended in lukewarm water, it doesn't get gelatinous or anything :P What do you do in a hurry?

Topic by zachninme   |  last reply


Easiest method for magnetic levitation? Answered

I have a ring magnet of about 4 cm diameter and additional magnet pieces. for my science project, i want to suspend one magnet in the air WITH OUT ANY SUPPORT. how can i do it? what are the factors affecting the stability? can anyone tell me the simplest way to perform that? what other shapes of magnet will i need to do that?

Question by allsparkunleashed   |  last reply


How do I heat an exposed wire to cut candles?

Hello, I am a first time questioner, hope this is in the right place. I enjoy making candles, but the bases are never even, and my attempts to level are even worse.  I want to use a turntable and somehow pass a current through a suspended wire (like in a toaster?) enabling an even cut, but not resulting in an insurance claim because I burned the house down. Any ideas? thanks

Question by fasteryoufool   |  last reply


What's a good material for a door chime? Answered

Does anyone have one of those door chimes where the chimes are metal pipes suspended from above? I'm thinking of making one and could do with some suggestions about what's a good material and length / thickness of pipe to use for the chime. I just tried with a (quite thin walled) stainless tube clothes rail and it sounds a bit thin and weedy, so it would be great if anyone has any better suggestions.?

Question by ganglion   |  last reply


Tea steeping device that automatically steeps tea for a set time?

You should be able to set the time in minutes. The tea leaves (perhaps in a large tea ball) are removed/withdrawn from the water after the set time. I was thinking of have the tea ball suspended in the water by a weighted cantilever arm and when the set time expires, the arm is released and the tea ball is lifted out of the water... Any ideas? Thanks!

Question by siameez   |  last reply


how to build a strong electro magnet?

For my project, i would like to build a strong round electro magnet. i would like to know how i can build one.. i mean number of turns, current, diameter of wire. can we connect the coil to main power supply directly? i need a very strong magnetic field, one of my purpos is to levitate another magnet with out any support of strings (freely suspending in air). thanx in advance.

Question by allsparkunleashed   |  last reply


Pen + sprinkler = get out of school free!

I will not be as descriptive or dramatic in this story as I was in my last. Last year, someone in my class made a small elastic gun that shot pens and pencils. Someone, who shall remain nameless, was screwing around during LA class trying to get a pen stuck in the ceiling with it. Whats the one thing you hit if you aim at the cieling and miss? A sprinkler. Black, smelly fluid (I know, black? wtf?) sprayed out everywhere as everyone in class eight one was screaming. Within seconds, the school alarm system was activated, and the entire school (~1000 students) was evacuated. 1/4 of the school was flooded, as were 4 computers. (Nameless) did get caught and was suspended from school for ~1 week. We got the rest of the day off school. If you can hit a sprinkler with one of these weapons, and activate it, It's basically a good way to get out of school free. You must have tremendous aim though. Someone with knowledge in the field of sprinkler systems said that (nameless) was extremely lucky that he did not set off every sprinkler in the school, which probably would have gotten us out of school for a week. (and got him suspended for the rest of the year, if he were caught) remember, aim between the red part and the metal part.

Topic by cwid   |  last reply


Bohemian Rhapsody fancy dress outfit.

Hi All, I'm going on a stag do in August. the theme is freddie mercury (lead singer from Queen). I want to recreate the shot in the Bohemian Rhapsody video where its just the 4 heads all lit from below. I will be Freddie Mercury, I will print off the other faces and stick them to card, I just need a mechanism where by the 3 other faces are suspended around me, preferably on arms of some kind that are retractable and spring into place at the pull of a cord. Not sure how practical this is, just seeing if anyone has any ideas. thanks in advance.

Topic by bedder   |  last reply


Youtube is horrible now

So, when I went to Youtube one day, I watched a Rockband video. And I'm like... okay, why did this person put different music on the video? Then I realized it was on most youtube videos. THEN, my favorite Youtube account was suspended. Why was all of this happening? Copywriting. I mean, most people probably bought the song off of Zune or Itunes. Most videos that look awesome are ruined because of the earache-cheap-cheesy garbage youtube puts onto videos. I think we should start a boycott or someone should start a petition or something! Does anyone have any other ideas?

Topic by Flumpkins   |  last reply


How do I preserve a 4 lief clover? Answered

I want to preserve my first 4 leaf clover. This is the first 4 leaf clover I have ever found. I was just sitting there enjoying the evening breeze and there it was right in front of me, it is the 649 lottery night and I have two tickets. I hope I did not use up my good luck finding the 4 leaf clover. And I get preparing the leaf by book pressing as in this Instructable. https://www.instructables.com/id/How-to-Preserve-a-Four-Leaf-Clover/ I want to do it right the first time in resin. Is there an Instructable on suspending delicate  leaves in resin? 

Question by Josehf Murchison   |  last reply


Ultimate Pirate Ship Bedroom

Pirate ship bedroom? Shiver me timbers! Designer Steve Kuhl used 2x12 ribs to construct the hull of the ship, covering them with layers of 1/2 inch plywood to act as the planking. "But that's not all. The room is also decked out with a rope bridge that connects the pirate ship to the top of a jail cell, and a rope suspended from the ship's hull provides drop-in access to the closet. There's also a completely hidden spiral slide, that lets you travel downstairs in a more adventurous way." Check out this pirate ship bedroom, there's 14 pictures that show the bedroom from all angles and even a computer model that illustrates the spiral slide. via: mymodernmet.com

Topic by mikeasaurus   |  last reply


Hugging device

We are in search for ideas and/or off-the-shelf solutions for a mobility and toileting issue in response to the following request: "I apologize for posting again so soon, but I forgot to describe my disability, and why I'm physically unable to hug someone. I was born with a rare form of Muscular Dystrophy called Nemaline Myopathy. My disability affects me in many ways, but in this case, I'm unable to independently raise my arms, wrap them around someone, and have them stay in place. A device I'm seeking would have the ability to suspend my arms in the air, and be able to bring them together. One suggestion was to somehow hook it up to a motor, and operate the device by a remote. Also, when I was a kid, I had a device that was like a sling for my arms. The two slings were attached to two separate metal rods on both sides of me that were able to attach and detach from the back of my wheelchair. Someone would slide my arms into the sleeves, and I was able to bring my arms together, or do various tasks, like typing, with my arms suspended in the sling. I do have the strength to squeeze my arms together, but without assistance, my arms eventually do slide down due to gravity. A device similar to the sling idea would probably be ideal, plus no motor or electronic devices would be needed. I realize that this project could be timely, and possibly expensive, but to me it's worth it. I'd love to be able to give someone that I care about a real hug, and experience another form of intimacy and closeness." Happy to hear your ideas! About Tetra Tetra is a non-profit organization that recruits skilled volunteers to create customized assistive devices for people with physical disabilities. See our instructables group at: https://www.instructables.com/group/tetra/

Topic by chuirich   |  last reply


How to solve: Pinterest is rejecting my ability to pin an instructable?

I've tried twice now just within the last half hour to pin a link to an instructable; one for microwave omelette in a cup and the other tandoori chicken. Both attempts were rejected due to the website containing inappropriate content.I've pinned many Instructables before, never have I had this issue.Please, can someone tell me how to solve this issue? Otherwise, I shall find another outlet for sharing, remove my data from Pinterest, and do everything I can to expose them.Thank you.First, they came for my facebook, so I deleted my account. Then they came for my Pinterest, and I suspended my activity. Then they came for my Instructables, and no one was left to defend me.

Question by gralan   |  last reply


Anti Gravity

SCIENTISTS in Finland are about to reveal details of the world's first anti-gravity device. Measuring about 12in across, the device is said to reduce significantly the weight of anything suspended over it.The claim - which has been rigorously examined by scientists, and is due to appear in a physics journal next month - could spark a technological revolution. By combating gravity, the most ubiquitous force in the universe, everything from transport to power generation could be transformed.The Sunday Telegraph has learned that Nasa, the American space agency, is taking the claims seriously, and is funding research into how the anti-gravity effect could be turned into a means of flight.The researchers at the Tampere University of Technology in Finland, who discovered the effect, say it could form the heart of a new power source, in which it is used to drive fluids past electricity-generating turbines.Other uses seem limited only by the imagination:Lifts in buildings could be replaced by devices built into the ground. People wanting to go up would simply activate the anti-gravity device - making themselves weightless - and with a gentle push ascend to the floor they want.Space-travel would become routine, as all the expense and danger of rocket technology is geared towards combatting the Earth's gravitation pull.By using the devices to raise fluids against gravity, and then conventional gravity to pull them back to earth against electricity-generating turbines, the devices could also revolutionise power generation.According to Dr Eugene Podkletnov, who led the research, the discovery was accidental. It emerged during routine work on so-called "superconductivity", the ability of some materials to lose their electrical resistance at very low temperatures. The team was carrying out tests on a rapidly spinning disc of superconducting ceramic suspended in the magnetic field of three electric coils, all enclosed in a low-temperature vessel called a cryostat."One of my friends came in and he was smoking his pipe," Dr Podkletnov said. "He put some smoke over the cryostat and we saw that the smoke was going to the ceiling all the time. It was amazing - we couldn't explain it."Tests showed a small drop in the weight of objects placed over the device, as if it were shielding the object from the effects of gravity - an effect deemed impossible by most scientists."We thought it might be a mistake," Dr Podkletnov said, "but we have taken every precaution". Yet the bizarre effects persisted. The team found that even the air pressure vertically above the device dropped slightly, with the effect detectable directly above the device on every floor of the laboratory.In recent years, many so-called "anti-gravity" devices have been put forward by both amateur and professional scientists, and all have been scorned by the establishment. What makes this latest claim different is that it has survived intense scrutiny by sceptical, independent experts, and has been accepted for publication by the Journal of Physics-D: Applied Physics, published by Britain's Institute of Physics.Even so, most scientists will not feel comfortable with the idea of anti-gravity until other teams repeat the experiments. Some scientists suspect the anti-gravity effect is a long-sought side-effect of Einstein's general theory of relativity, by which spinning objects can distort gravity. Until now it was thought the effect would be far too small to measure in the laboratory.However, Dr Ning Li, a senior research scientist at the University of Alabama, said that the atoms inside superconductors may magnify the effect enormously. Her research is funded by Nasa's Marshall Space Flight Centre at Huntsville, Alabama, and Whitt Brantley, the chief of Advanced Concepts Office there, said: "We're taking a look at it, because if we don't, we'll never know."The Finnish team is already expanding its programme, to see if it can amplify the anti-gravity effect. In its latest experiments, the team has measured a two per cent drop in the weight of objects suspended over the device - and double that if one device is suspended over another. If the team can increase the effect substantially, the commercial implications are enormous. Okay. lets throw down our ideas and see if we can figure something out... or not

Topic by RelyNupon   |  last reply


Water purifiation for flood victims

Hi, I am a flood relief volunteer based in India. During flood, many children get seriously sick due to consumption of contaminated water. The flood water is contaminated with suspended particles,rotting organic matter& pathogens( specially E-coli) . These people do not have access to electricity,sanitation & medical relief. I am working on small, cheap & effective water filters that can be made/assembled at the site. If someone can suggest methods to make effective turbid water filters using commonly available materials, or send me the links which can help make these filters, it will be a big big help. Thanks, Chandan Singh,GreenPower India.Images of last yr floods 1Images of last yr floods 2 Images of last yr floods 2

Topic by chandn   |  last reply


How can I purify mineral oil?

My early experiments with oil-cooling my PC lead to some chemical *discoveries* The first was mineral oil will dissolve latex rubber.  I was using surgical tubing to pump the oil to the radiator and after a day the tubes had softened and swollen so much they wouldn't stay attached to the pump.  That and the oil turned an ugly yellow. (* the second was warm oil reacts with PVC, and causes the insulation on usb cables to become brittle) I'm working on the next gen of the project and I'd like to clean up the oil, but I can't quite google my way to a solution. I have filtered the oil (removed all the bugs) though a coffee filter, and a couple of paint filters, I don't have any reason to believe the rubber is suspended and filterable, but I could be wrong. Any chemists out there know what I can do?

Question by Malkaris   |  last reply


Wine Stand that is a Balancing Act

Does anyone know how to construct this balancing piece of wood that holds a bottle of wine. I hate to spend over $20 for a 50 cent piece of wood that I could make at home.I appreciate your help, and I just know there are a few of folks that are mechanically inclined that can solve this...Thank you!http://store.komando.com/p-244-wooden-bottle-balances.aspx?utm_source=l&utm;_medium=email&utm;_content=bottle_balances&utm;_campaign=topBalancing ActCoolest way to store a bottle of wineIs this magic? No, it's a little science. The weight of the bottle shifts the center of gravity that makes the wine appear to be suspended in mid-air.You'll get loads of comments, smiles and laughs! These positive reactions make these wine bottle balances a perfect gift! After all, Ben Franklin said, "Wine is constant proof that God loves us and wants us to be happy."Made of solid wood.

Topic by KeyWest   |  last reply


Sous vide with a slow cooker?

I've been intrigued by sous vide cooking, but I don't have any inclination to play with arduino(?) controllers or wire/solder anything. Is there any reason you couldn't use an older (non-digital) slow cooker/crockpot with a Lutron dimmer cord?  We use the dimmers on all our bedside reading lamps, but they're rated for up to 300 watts.  It would take some experimenting to get the temperature right, then I think I'd tape a "stop" on the slider switch at that point.  Any thoughts?  Raising the food from the bottom of the pot?  An upside-down silicone cake pan, maybe?  Or suspending the bag somehow?  I already have a Foodsaver. I'd be happy to hear any thought or suggestions. http://www.amazon.com/gp/product/B0000DI241/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=486539851&pf;_rd_s=lpo-top-stripe-1&pf;_rd_t=201&pf;_rd_i=B0000BYEF9&pf;_rd_m=ATVPDKIKX0DER&pf;_rd_r=0WRPJ5W9TWM39K9Z1Y9N

Topic by kcbirder 


Spinning Skyscraper + Damper Ball

For the civil engineers out there, check out this daring piece of architecture: a tower whose floors are independent and can turn on voice command. Each floor is built pre-fabricated off-site and then attached to the tower, and the building creates its own energy using wind turbines and solar power. Of course, for the building to look as smooth as it does below, you'll have to ask all of your neighbors to turn their houses or offices just so.Link via GizmodoOn the subject of skyscrapers, there's more--an insight into how the Taipei 101, the world's second tallest building (at the moment), survived the May earthquake in Sichuan, China. The building uses a 728-ton ball, suspended between five floors in the upper part of the tower, to damp vibrations from high winds or ground tremors. You can watch a video of the damper ball moving during the earthquake here.Link via Gizmodo and Deputy Dog

Topic by joshf   |  last reply


Heat storage device for car cabin heater

I want to increase the heat storage capacity of the existing car heater so that I can run the heater (just the fan and a liquid pump) while the engine is off and so I can have a warm car as soon as I start on a cold day. The current heat storage is the coolant circulating in the engine. I want to increase the capacity of that. Instead of simply attaching a liquid reservoir to the heater circuit (to increase the coolant volume), I was considering using a picnic cooler (insulated) box with a coper tube coiled in it. The box would be filled with oil and paraffin. Paraffin melts ≈ 40° C  and I can take advantage of the latent heat of fusion when the paraffin changes phase. The oil is a medium to suspend the paraffin. I need a recommendation of an electric 12 volt pump to circulate the fluid. I request any other thoughts or criticisms.

Topic by nehmo   |  last reply


Shopping Bags to Frisbees

Someone once told me that about the only way to join polyethylene plastic was with heat and pressure. Plastic shopping bags are a recycling problem.  I think they are polyethylene plastic.  Heat and pressure might turn them into Frisbees, or other essential things.  I visualize a vertical, heat-resistant cylinder with a removable  Teflon-coated bottom cap in the shape of a Frisbee -- black to absorb solar heat.  A piston inside with the other half of the Teflon-coated mold could have a weight on it to provide pressure.  Fill the cylinder with shopping bags, with the piston inside, and suspend it over a solar reflector to heat the end cap of the cylinder.   There you have heat and pressure -- and free energy to turn the shopping bags inside into Frisbees, or other objects. Personally, I don't have need for more Frisbees, and don't collect enough bags to keep the equipment busy.  On a community recycling scale, though, it might be a way to get rid of a lot of bags that nobody wants.  Would anybody like to run the experiment? 

Topic by Thinkenstein   |  last reply


valve idea wanted for for a automatic top up on a small low pressure boiler

Hi Can anyone sugest a way for me to automacily top up a boiler as the level drops whilst generating low preasure steam. I am building a small boiler steam generator for a sauna, my problem is that the boiler needs to be small and portable for backpacking and treking so therefore may only hold a couple of litres of water, the small tent style sauna will demand more than this. the boiler may be something simple like a kettle with a pipe attached to carry the steam into the sauna, but whilst taking a sauna i do not want to have to keep topping up the boiler, i have a constant heat source so no problems there. i also have a collapsable fold up plastic water carrier which i can suspend above the boiler as a reservoir but will need some sort of valve that allow the boiler to top up automaticlly. hope that all makes sense. thanks in anticipation. robert

Topic by robertuk444   |  last reply


Making an awesome chandelier - the cheap way?

Hello all I'm very into art and like beautiful things in life. However, beautiful things are typically very expensive. I've found this chandelier/loft lamp that i'm particularly into. It's the Jeremy Close Blossom. It dosen't seem very complicated (ok, it looks complicated, but many parts are exactly the same), but it is very beautiful and very, very expensive. It's a whopping $10,000! The leafs themselves are made out of ceramic and the skeleton is made out of steel/aluminium.  What struck me was: isn't this a project that would be easily accomplished using a mould and some sort of foam? - paint it black and there you go..? The skeleton itself, i imagine, would be constructed by a series of concentric rings suspended on a wire of some sort. The leafs would them be clamped somehow to the rings by some sort of  tightening mechanism.. Any ideas how to do this one? - how would one make the shape of the leafs to make a mould? - are there anything out there on the market that looks like it, but is a lot cheaper?

Topic by tbertelsen   |  last reply


Need Ideas for my Pond's waterfall.

I'm in the process of building a pond but I've reached a stumbling point for myself. I've just sunk my sealed bathtub into the ground (See picture) and it looks great!  I've also got a tentative arrangement of rocks to work as my waterfall (See picture). The issue I'm having is that I need to suspend the waterfall over the water.  My first Idea was a triangle of 3/4" plywood to cover the far left corner of the tub, but if exposed to water for a long period of time, that might not work so well.  I'm also worried about back flow from the waterfall pouring water onto the rear side of the shelf. I thought thick acrylic might work better, assuming that the price is reasonable and it can support the weight. Any suggestions, anything at all.  From building the bottom up with bricks to creating some other strange shelf, let me know what you think might work!

Topic by Cold Shoulder Media   |  last reply


Age of Aquariums Special Guest Judge Announced!

For the Age of Aquariums Contest we are bringing in a special expert judge, Alex Andon! Alex studied marine biology at Duke and was always fascinated by the jellyfish exhibits at public aquariums. Jellyfish can't go in a regular fish tank because they would get sucked into the filtration system. They require a kreisel tank with a special water flow pattern to keep them suspended in the middle of the tank. There were no commercially available jellyfish tanks, so Alex started experimenting with large tanks and then made them smaller and more affordable until he had designed the first desktop jellyfish tank. He launched it on Kickstarter and raised $163,000, making it one of the first successful crowdfunded launches of a product. The company sells specialized jellyfish aquariums and breeds its own jellyfish, shipping them overnight to customers throughout the U.S. Alex's latest project is the Chargerito, the world's smallest in-wall phone charger.

Topic by Danger is my middle name 


Best way to cut plexiglass without a laser cutter?

I need to cut a 9" diameter circle out of a 12"x12", 1/8" thick piece of clear cast acrylic (making an infinity mirror). I've cut this stuff with laser cutters before but don't currently have access to one. I have a circular glass cutter but I'm not really clear how that does me any good - it scores a circle but the acrylic doesn't seem brittle enough to snap off nicely along a circular line. I have a jigsaw with a wood blade but that just snagged and made the acrylic shatter. I have made rectangular cuts before by scoring a straight line with a utility knife, then lining that cut up with the edge of a table, and hitting the suspended piece of acrylic with a mallet - it snaps right off. I'm just not sure how to make a circular cut. Finer-tooth jigsaw blade? Approximate it using the score-and-snap method for a many-sided polygon with a bunch of straight cuts?

Topic by Ben Finio   |  last reply


casting a section of a large sphere in polyester resin

Hello, all.  I bought a nice pendant lamp for my house several months back from one of the local big box stores on clearance.  I only got around to putting it up recently, and when I opened it (yes, I already feel stupid for not having opened it right away to check on it...), the main glass lamp shade was completely shattered! Sadly, the lamp was on clearance because it had been discontinued, and none of the stores in Canada have any of them in stock anywhere, so getting replacement is impossible. I really like the lamp, though, as it matches several of the other lights that my wife and I have purchased, so I figured that I would try my hand at making a replacement shade!  The shade is shaped as follows: it is a section of a sphere 19.5" across (the diameter of the section, not the of the entire sphere), and 5" deep.  A little math (x^2 + y^2 = 2yr) lets me know that the radius of the sphere that this shade is a section of is 12". Here is my plan, and I would like to know if I am crazy or if anyone has a better suggestion.  I am going to try to cast a replacement shade from polyester resin, 1/4" to 3/8" thick.  I was going to make a 2-piece mould from plaster, and use my wood router suspended from a gimbal (on a 12" radius arm) to cut the outer mould.  Similarly, I would suspend a plaster blank from the gimbal over my router (on a 11 5/8" radius arm) to cut the inner mould.  Then I would simply coat the two halves with mould release and pour/pump the resin into the gap between the halves.  I'll tint the resin with some dye to get it the amber colour that I want, then lightly sand to get a smoky translucent finish. My only questions are: 1)  will I be able to get this mould apart without destroying the resin casting, and 2) will polyester resin be strong enough for this kind of casting?  Another option would be to make a wooden mould, but I thought that I might be able to chip away a plaster mould, whereas a wooden mould would be a lot harder to get off of a stuck casting! Thanks!   PS, of course, if this works, I'll post an instructable of it!

Topic by roboguy   |  last reply


Can anyone sugest a way for me to automacily top up a boiler as the level drops whilst generating low preasure steam.

Can anyone sugest a way for me to automacily top up a boiler as the level drops whilst generating low preasure steam. I am building a small boiler steam generator for a sauna, my problem is that the boiler needs to be small and portable for backpacking and treking so therefore may only hold a couple of litres of water, the small tent style sauna will demand more than this. the boiler may be something simple like a kettle with a pipe attached to carry the steam into the sauna, but whilst taking a sauna i do not want to have to keep topping up the boiler, i have a constant heat source so no problems there. i also have a collapsable fold up plastic water carrier which i can suspend above the boiler as a reservoir but will need some sort of valve that allow the boiler to top up automaticlly. hope that all makes sense. thanks in anticipation. robert

Question by robertuk444   |  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


Modular Furniture Parts (or Legos for Adults)

I've been considering building more flat pack furniture (I'm sick of moving around awkward cheap crap made of MDF or particle board) and I've been thinking of maybe making some kind of modular parts that could be configured in different ways to become different pieces of furniture. Does anyone know if such a thing already exists? Also one of my sketches involved building frames out of posts and cross pieces with some surfaces built from strips of wood suspended on metal rods. I was wondering about the feasibility of making something like that. I realize I'm sort of babbling here so I'm attaching an image from my sketches. Does this make any sense? What could these supports be made of? Originally I liked the idea of using metal for the contrast in materials, but I don't have a metal shop and I think getting them fabricated would be expensive. If anyone has any input, let me know. It would be cool to have an open source modular furniture system (well I think so).

Topic by drocko   |  last reply


Advice for newbie - rotational art?

Hi there, A few years ago I picked up a lovely ornament - a crystal ball contained within a conical spiral wire thing.  When suspended you could manually spin the wire to create the illusion of the crystal ball falling (very poor explanation but hopefully you get it?). Anyway - I've always wanted to automate this, so that you can hang it up in the conservatory and enjoy a nice cup of tea whilst this thing continues to spin. My simple idea was to have the ornament hung on a basic motor (solar powered / using a solar powered battery would be even better). And that's where my idea stops.  I've searched online and remain baffled by the plethora of motors and accessories that I might need. In very simple terms can anyone advise what: electric motor I need (the ornament is probably around 1kg, I'd like it to spin at around 60 rpm?) whether I can power it via solar (ideally to charge a battery so that I can have it working at night when there is no sun!) Any other helpful tips? First time on this place - looks incredibly interesting and fun. Thanks in advance, Jamie

Topic by Jamie_Jumbles   |  last reply


LASER BEAM "EXPANDER"... Low-Cost INSTRUCTABLES Version?

I didn't know where else to post this - let me know if I should repost it elsewhere. I'm looking for plans{?} for a laser beam "expander" that doesn't cost hundreds of US dollars. {I'm on a BUDGET.} Short version of why: If you read my profile, my hobbies include 'Kite Aerial Video'. Basically, it's aerial video shot by a camera suspended from a kite line. {Usually done that way versus putting the cam directly on the kite.} I'm 'researching' using a laser {or lasers} for night time illumination with a miniature low-light video camera for wildlife / nature observation. Most of the stuff I need - including the vid cam and laser - aren't too expensive. However, the cheapest expander I have found was over $300 USD. I was hoping I could find something cheaper here. I know someone who did something similar with a Generation 3 night vision monocular. However, a Gen 3 night vision imager is too expensive for me. And for KAV, the cheaper Gen 1 & 2 imagers won't work. Thanks in advance. -Allan, aka RocKiteman N.E. North Carolina, USA

Topic by RocKiteman   |  last reply


How can i pun a real signal blinking handle from a car on a PC steering wheel?

I want to modify a PC steering wheel to be real. I want to put a signal blinker handle, by solder the pins on 2 buttons from the gamepad. Can i do without arduino or any PIC programmer a thing like the signal blinking from the car? I want on a PC steering wheel to put a handle for signal blinking. How? I solder the handle pins to the front panel (the buttons from the PC steering wheel, i suspend 2 buttons, like 2 and 4). Can i do a simple circuit when i commute the handle to right for exemple the signal goes once and when i commute back to none the signal goes none. I dont know how to explain. When the handle is on right position the semnal from him must go once, when the handle is switch, the signal from the handle to transmit the signal again, because i solder the pins to buttons command. Can it be done with something like in the photo? http://i60.tinypic.com/2crnf5j.png And here is something like my handle: http://i60.tinypic.com/sxd6cz.jpg

Question by danyelo   |  last reply