just wondering about 3d printing materials

Print with clay? is there some form of fire proof epoxy out there or can they print glass.you know some kind of silica based ink that ya could print out into objects them fire them up to fuse together?

Posted by ripit 6 years ago


Neon / fluorescent / phosphorescent ingredients for ceramics

Hi all, Just wondering if anyone knows of any minerals, or products that will produce a visible fluoro colour in daylight, or phosphorescent in the dark. I want to be able to either use these as glaze or as stain for clay slip.

Posted by jarris 4 years ago


Has anyone else an Interest in the R.I. Steel Yard courses, ceramics, jewelry, blacksmithing, etc.

Since not much else happens on my end of the States, I thought I'd post this. The Infor can be found here.

Posted by Goodhart 7 years ago


Other media besides plastic?

So I recently started looking into some of the 3d printing stuff as a way to make a number of laboratory items that are not easily had other ways.  While 3D printing seems really promising, i'm noticing there's not alot of work being done on non-plastics. Are there resources out there for 3D printer enthusiasts who want to use metal or ceramics in there creation?  Off the top of my head, i can think of a few ways that they could be encorporated into an existing 3d printer (metal and ceramic powders in a wax binder that can zapped with a laser to fuze it into place), but I'm only just barely getting into this and i'm really not looking to reinvent the wheel simply because i didn't know that it's already been done.  If plastic went entirely by the wayside, pieces that could be cured in a conventional oven could be printed, but fully cured, ready to go products are sorta the point of a 3d printer. 

Posted by Qcks 4 years ago


Unfinished Ceramic Tile/Pizza Stone

I've heard that you can use an unfinished ceramic tile as a pizza stone. I have not been able to find any unfinished ceramic tile anywhere. I figured a bunch of DIY folks like the ones here might know where I can get one. Does anyone know where I can get a 16"x16" unfinished ceramic tile? Thanks Rick

Posted by mrmath 11 years ago


Identify ceramic/film capacitors?? what?

So i went on this website, because i need a 1.0uF ceramic capacitor. would the numbers be 105 and a letter?(there doesn't have to be a letter, but there may be)Thanks!

Posted by Sandisk1duo 10 years ago


Ceramic coated stainless steel

Hi all, I just came across this jewellery and the hardware intrigues me. What is involved in this process, and is it something that can be done on a small scale? And is it only appropriate for steel? Cheers! http://www.cha-o-ha.com/collections/frontpage/products/ceramic-coated-forged-d-shackle-dark-earth

Posted by jarris 4 years ago


Ammonium nitrate + mortar/pestle = death??

How risky would it be to crush crystalised ammonium nitrate (like in instant cold packs) in a ceramic mortar and pestle?

Posted by Dirtbiker460 10 years ago


Must have capacitors, resistors, transistors

I am wanting to know the best values/ most used values in electronics projects for resistors, capacitors, and transistors. Suggestions? Also when purchasing capacitors, ceramic vs. electrolyte? Are ceramic mostly for lower capacitance values? And lastly what is the difference between a 10k resistor and a 10 Ohm resistor. What I have figured out is that the 10k is a higher resistance value.  Thanks, diamondmine

Posted by diamondmine 3 years ago


A little help with identifying Ceramic Capacitors?

A friend asked me to fix his tv's power supply, and i accepted the challenge. Upon closer inspection of the circuit board of the power supply, i saw that a resistor bridge, a rectifier, a diode, a capacitor and 2 power transistors were blown. I purchased the appropriate replacements, and as i was about to install them earlier today I saw that two ceramic capacitors are blown. One of them has '684J' printed on it, the other has "SCK 206 or 296" printed on it I need a little bit of advice on what replacement capacitors to buy, or if i should take them out of the circuit. I could leave them out, because they seem to hook up to a rectifier and then to a transistor, but i would rather buy the appropriate replacement capacitors. Thanks!

Posted by Sandisk1duo 7 years ago


How to cut porcelain steel

Hey everyone! Here's a good one for anyone interested in new techniques! I have some porcelain steel I'm trying to cut and I was wondering if anyone has an idea, tool, or technique that i should try to cut the porcelain coated steel with that won't chip the edges of the ceramic. The porsaline steel is .017" thick the ceramic is .007" inches thick. If anyone could design something that I could use it would be greatly appreciated!

Posted by 2001warrior 10 years ago


substituting capacitors

I was designing a board that uses a bunch of the same chip and all of the inputs require a capacitor. For example lets say I have 10 identical chips with identical setups. Instead of having individual capacitors for everything to ground (except for the outputs) can I combine all of the ceramic capacitors and use a couple of bigger electrolyctic capacitors? So lets say I can have 1 capacitor for all of the identical inputs instead of 10 smaller ceramic ones. But for stuff like timing do I need individual capacitors?

Posted by guyfrom7up 10 years ago


What's the best way to screen print onto a round ceramic object

Could you please give me tips on how to do this the object will be a toilet and I will be doing this for my fine art degree work

Posted by myprettypie 10 years ago


Trying to identify a few old electronic parts

I inherited several cabinets full of electronic components from a friend's dad who used to work at Apple during the Apple ][ days and although I've identified most of the parts, I needed some help identifying some old Fairchild parts in "plastic can" type packages, and some other miscellaneous parts. One is labeled "F" (Fairchild logo, I think) μL 91428-750, and has eight leads from a round ceramic plastic-topped package. The only thing I can find in google that American Semiconductor sells it as a "Fixed Positive Voltage Regulator" (but I don't have any assurance this is the same part) but doesn't seem to have a pinout or datasheet: http://store.americanmicrosemiconductor.com/ul91428.html . I've got probably 50 of them, so I'd really like to find out what they are. Another similar 8-lead round ceramic/plastic can part is labeled "F" μL 90028-807 (and a couple marked 90028-639, is that a date code, 1963?!). Can't find them anywhere on the web at all. A couple more 1-off chips that I can't seem to find anywhere are labeled: SCM90058C "M" (Motorola) 8002 (16-pin ceramic DIP) DTμL93059 "F" (Fairchild) 839 (14-pin ceramic DIP) Any help you could provide identifying these parts would be greatly appreciated! Andrew

Posted by andrew.allen.75839 3 years ago


Fly back transformer for sale

This is a flyback transformer type that so many people want  I have no clue why they think it is Superior to the regular modern flybacks.  maybe simpler? If some one wants it   $10    also comes with a ceramic high voltage diode.

Posted by inductionheat! 8 years ago


Miniature oven

Please don't laugh but I am building a small working oven for my daughter and need a heating element that can heat it from 70 to 220 degrees celsius via a thermostat. I've found this heating element http://uk.rs-online.com/web/p/ceramic-heating-elements/3762795/ or http://uk.rs-online.com/web/p/ceramic-heating-elements/1988529/ and this thermostat http://uk.rs-online.com/web/p/products/7334726/ but am not sure these are suitable and would work together. The oven will measure about 15cm wide x 8cm hit x 10cm deep but I don't have to stick to this.Any help or advice would be amazing. You're laughing aren't you? :)

Posted by gooseisloose 1 year ago


Reverse Engineering TheseCeramic Speakers

I recently found these extremely minimalistic speakers online and after repeated failed attempts of trying to figure where to get the materials to make my own (or at least where to get the ceramic cones) I was wondering if anyone here could offer me some guidance on how I could go about building my own similar speakers.  I would love to buy these speakers myself whereas they are a work of art to me, but sadly to a kid in college $500 is an entire year's worth of ramen noodles.  Thanks for all the help in advance.  Here is a link to the official web page and in case it's broken I included a picture of the speakers below. http://joeyroth.com/ceramic-speakers/

Posted by BoxmanBoxman 8 years ago


"concrete smell"

Some 20 years ago, I built an addition onto my house. It is built on a concrete slab with 42 inch block foundation. I have a completely finished room in which I have installed ceramic tile flooring. Under the ceramic tile I used Ardex to level the concrete before tiling.  For the last 20 years I have never noticed what now appears to be a "wet mortar joint" smell. I have become increasing alarmed about the slab leaching moisture into the room. There is no visible sign of moisture. The tile is not exceptionally cold; it's just that smell.  Can anyone put my mind at rest, or suggest to me what this might be and how to remedy it. I definitely can not destroy the floor. Please advise. Thank you.

Posted by moea 3 years ago


Mist Fountain

I would love to see an instructable to make a Mist Fountain.  I am unsure how they even work and what would be used, component-wise, though I see Ceramic replacement disks on ebay. Thanks!

Posted by dargenhara 8 years ago


REVIEWING MY INSTRUCTABLE

Hi! I have published some instructables and I want some views on how I  can improve it. https://www.instructables.com/id/HOW-TO-MAKE-DANCING-LEDS/ https://www.instructables.com/id/HOW-TO-CALCULATE-RESISTOR-CERAMIC-CAPACITOR-VALU/ https://www.instructables.com/id/HOW-TO-TEST-YOUR-TRANSISTORS-WITH-YOUR-MULTIMETERS/ Thanx

Posted by pranjal12 5 years ago


New Instructable Added, New Members

New Instructable posted on making rubber stamps. Working on intructables on the following projects, Cuerda Seca Tiles, Colored clay vase, Ceramics Basic projects. New members, I am trying to add you, but my member manger has a bug. Will keep trying, thanks for your patience. Candy

Posted by CandylandCeramics 10 years ago


Piezo analogue sound

Hi all. I am a newbie and this is my first post so i might be barking up the wrong tree here. Would it be possible to use one of those small piezo-ceramic speakers to play sound e.g. from an mp3 player headphone jack? i am not looking for great quality sound, only voice quality, but i needs to be fairly loud. Many Thanks, Bob

Posted by saiorse44 11 years ago


Ceramic capacitor in air conditioner DPAC12010H

Hi there,  I received a not-working air conditioner model DPAC12010H from someone who didn't need it anymore, and I took it to a friend who works with refrigerators to see if we could find the problem. We took it apart, and we found that a fuse mounted on the main PCB was shot. The fuse is 120V and 3.75A so I suppose it's only for the control circuit as the whole air conditioner runs at more than 9A on max capacity. Anyway, we temporarily bypassed the fuse with a copper wire to continue testing. We plugged it in, and immediately a component on the PCB (which I now believe is a ceramic capacitor) spew sparks and melted it's insulation. However after this incident the air conditioner works perfectly, and it blows very cool air (its a 12000 BTU machine after all). However I'm still concerned about that capacitor. I can not post a picture right now, maybe when I get back from work. It was brownish yellow, about 3/4" in diameter roughly same shape as a nickel. Does anyone have any idea what that capacitor might be for? Since the air conditioner is working now I'm guessing the sparks made it conductive, or maybe it's used for the dehumidifier which I have not tested.  I will buy a new fuse today and see what happens. The air conditioner draws about 9 A at full operation. Any help would be greatly appreciated.

Posted by colorex 5 years ago


Heat sink mystery

While harvesting parts from a tiny refrigerator, I found something that I don't understand. There was a heat sink about 6 inches square on the back with a 12v fan attached. Underneath this arrangement was a smaller heat sink about 3 inches square and sandwiched between the two was an aluminum block, also 3 inches square and about 1/2 inch thick. Between the block and the large unit is what appears to be a ceramic tile about 2 inches square, seperated from the larger sink with a thin layer of white foam. This tile is glued very securely to the back of the larger heat sink. What puzzles me are the two wires running from a PCB to the ceramic tile. They disappear into the foam but I can't tell what they connect to. A heat sensor that is attached to the large sink, perhaps? There was a twist knob inside the unit that allowed you to adjust temperature from Min to Max. I don't want to pry off the tile just yet in case this might be something useful in its current condition. This refrigerator is probably more of an ice chest than anything, else. There are no coils on the back and no compressor. The only motor is what drove the fan. There is a drip pan on the back and what looks like a plastic hose connection but I don't know if this tube let water in or out. The whole refrigerator is only about 2 feet cubed. It was powered by a standard grounded AC cord. How did this thing cool? And what do those mysterious wires under the ceramic tile serve?

Posted by Boy Genius 6 years ago


Are these Capacitors Fried??

I think i blew out a cheap voice chance I have... can anyone verify that the capacitors I have circled are indeed blown... I've never looked before, and am not 100% sure the black isn't just a manufacturers marking. also, the caps are 20pF and 56pF and I need to replace them STAT... would Radio Shack's 100 pack capacitor grab bag have these numbers?

Posted by gschoppe 10 years ago


Aryana - Intro

Hello everyone.I am new here on instructables. I am mosaic and ceramic tile artist, and will post more on those arts later. Ok, now I put up my first one & I really want some critical feedback. It is Designing a Mosaic For my next instructables, I want to do more intricate proceedures- so I need to know if my process images/notes are good - or do they need work?

Posted by aryana 10 years ago


do capacitors like this work?

Do capacitors like these:http://cgi.ebay.com/20KV-1000PF-High-Voltage-Ceramic-Disc-Capacitors-Y5T_W0QQitemZ360099674640QQcmdZViewItemQQptZBI_Electronic_Components?hash=item360099674640&_trksid=p3286.c0.m14&_trkparms=66%3A2|65%3A15|39%3A1|240%3A1318work in applications like voltage multipliers, marx generators, etc. Or are they meant for something else? They seem like a really good deal and I just don't want to buy a ton of them to fail on me in like 2 seconds.

Posted by guyfrom7up 9 years ago


any use for crock pot heating element pan, broke ceremac bowl

I broke the ceramic bowl to the crock pot.  i was wondering if their is a use for the heating portion before i toss it, anything g to salvage, or a use for the heater. i was thinking of building a box that was heated by the sun that i could throw my clothes in when i spend a day in bedbug areas, i think the temp has to be 175 to kill them., thanks for any help

Posted by escapefromyonkers 5 years ago


Which One sohuld I do?

I would like to pick and do my science project early, and I'd like to know..Which one should I do? I have a project form science buddies, which involves a gauss meter to measure the difference of volts generated between ceramic and neodinium magnets, but I also saw the magnetic leviation topic, and might want to try that. so, which one, or, what other project should I do? also, I must get a result in measurable numbers.

Posted by wolf555hound 9 years ago


Requesting ideas to build a sauna or mini sweat lodge

I know i can't be the only person to want to build my own sauna?! I've seen some online but the quality looks dodgy for the price... so i thought i would throw the idea out there and see if it was possible! I wanted to try and sew together that reflective material that is a blanket for emergencies with a small foldout chair inside with a small ceramic heater (is the heater safe? or is there a better alternative heater out there). What do you guys think? how can i tweak this to better or improve upon design! All suggestions would be helpful!!

Posted by kboxster 10 years ago


Well that certainly spoiled my day

My student loans got screwed up! It should be fixed now, but won't know for ten days (at the most, they said), scary, what with bills and tuition to pay too. Add to that two exams (Kinematics and ceramic materials) and a presentation and a senior design report all in that time period. And my wife's so upset about the loans she's refusing to speak to me. School sucks kids! Okay, only some of the time, the rest of the time it freaking rocks. Spent the evening hiding out at a friends watching Hot Fuzz. Just wanted to unload.

Posted by Tool Using Animal 8 years ago


Our biggest and best Jewelry Contest ever is starting on 4/15!

We've selected some fabulous prizes from Otto Frei and Rio Grande and we cannot wait to see all the amazing jewelry our community will create! Prizes include premium and simple jewelry making kits, mini drill presses with drill bit sets, and wire wrapping kits. The Jewelry Contest is open April 15th through June 10th. We're looking for creative jewelry instructables including metalworking, ceramics, wire wrapping, 3D printed jewelry, mixed media, beading, and more! Head over to the contest page to get all the details.

Posted by jessyratfink 5 years ago


Need some help with a University project "Young talented crafters"

Hello! There are people from all over the world here, probably I will find some help. My sister is an Art Design student and now they are working over a project about young talented crafters from all over the world. She needs to find 50 names, it seems a lot but the world is so big :) If someone can give a name of a talented person I will really appreciate it! Google gave us some results but it's such a pain to search the web, lots of irrelevant results.  Any crafting talent will do, paper craft, ceramics, wood, wire etc, etc.  Thank you in advance for all replies! 

Posted by ucandoitcraft 2 years ago


BioDiesel-Powered Hauling

Recently, I've been re-doing one of our bathrooms. (An Instructables is in-progress.) This project, and a number of previous projects, has generated a quarter-of-a-garage-full of debris that can't go in our normal trash and wasn't going to be reused by us anytime soon: ceramic and glass tiles, cement backer board, grout and mortar, giant slabs of marble Christy scavenged 5 years ago, etc... When I came across Bakari Kafele's winning Instructable, Vehicle efficiency upgrades: 28.5mpg (so far) in 2.5ton commercial truck, and his BioDiesel Hauling business, I was spurred to action. Last week, he came by and we loaded the junk up to be recycled, reused, or taken to the dump. Here's to finding local businesses through Instructables!

Posted by ewilhelm 8 years ago


lost wax casting: what material is the best for pouring metal into?

So I made a rad Yoda wax figurine recently and I'm looking into converting him into a aluminum via the lost wax casting method. I've seen some other instructables on casting the metal into plaster of paris, but that doesn't seem to preserve the very fine details that I want. There are a few other methods I've seen on other forums, like mixing fine sand with plaster and making a ceramic mold...I have even wackier ideas like using fireproof cement, but I haven't seen anything online to support using it...what other ideas can you think of that don't involve expensive investment powders I have to buy online? 

Posted by jtrainer1 2 years ago


Small VERY Hot Plate

I am looking for someone who can design for me to make or make for me a specialized hot plate. I need it to be small like 3" by 2" and to get very hot as much as 700 degrees is desired. I want the power source to be 400watts. I know this seems hard but my reasoning is that the smaller size means higher temps with less wattage. I would use this as a hot plate that evaporates liquid from an airstream as it passes by - a dryer if you like. I would use 2 to cause the air to have to pass both in a zig-zag path. I would like to have a solid surface so eventually I see the plate encased in ceramic but for this it need only be metal. Can you help? Contact me here on the site to discuss more details Coog

Posted by coogrrr 5 years ago


Got Craft? Spring Craft Fair

GOT CRAFT?, Vancouver’s largest indie craft is celebrating its 11th show with over 50 handmade designers ranging from jewelry, clothing, ceramics and stationery, to plush toys, baked treats, and more! There will be plenty to do including DJs playing live music, food carts parked outside, and the Spool of Thread sewing lounge will be returning to host a slew of DIY workshops. Be one of the first 50 through the door for a FREE swag bag filled with goodies! what: Got Craft? where: Royal Canadian Legion – 2205 Commercial Drive, Vancouver when: Sunday, May 6th, 2012 10am to 5pm cost: $3.00 (kids 10 and under are free) link: http://gotcraft.com

Posted by gotcraft 6 years ago


Sydney Opera House on wheels!

I live in a semi-rural area.  We are hours from a decent motorway, but hip-deep in caravan parks. Given the UK law that limits trailers to 50mph, I am generally disapproving of anything towed. However, this trailer tent designed by Axel Enthoven is a thing of beauty and luxury. The Opera trailer tent has features including central heating, teak flooring (and a veranda!), ceramic toilet, electrically adjustable twin beds (which can be joined into a double), kitchen sink (of course), onboard water boiler (which supplies a fountain?), fridge and low-energy LED lighting “from awning to floor” (yes there are uplights!). Unfortunately, beauty has a price - €24,000 puts it in the price-range of campers with engines and no restriction to 50mph... Your Suite in Nature via Notcot.

Posted by Kiteman 7 years ago


Got Craft? Vancouver Holiday Craft Fair

GOT CRAFT?, Vancouver’s largest indie craft fair celebrates their 10th show with over 50 handmade designers ranging from jewelry, clothing, ceramics and stationery, to plush toys, organic chocolates and more! Spool of Thread sewing lounge will be hosting a slew of DIY workshops, those in need of further entertainment can enjoy DJs playing live music, the Varinicey Pakora food cart and be one of the first 45 through the door for a FREE swag bag filled with goodies. website: http://gotcraft.com/vancouver what: Got Craft? Holiday Craft Fair where: Royal Canadian Legion – 2205 Commercial Drive when: Sunday, December 4th, 2011 10am to 5pm cost: $3

Posted by gotcraft 6 years ago


Whats your Instructables work space?

About a year or so ago, when I started to get a little more serious about builing things as a hobby I took my wooden storage shed in my back yard and converted it to a workshop. I wired it up for power and light, I added some insulation and a small ceramic heater (I live right on lake erie, the winters are windy and cold) and a fan for the summer time. I'm always making improvements to my small but useful space when I'm inbetween projects. I was just posting to see what other people use as an instructables space. what kind of gear do you have in there? pictures are great too...... love to see what they look like. I'll post some of mine when I get home from work today.

Posted by chaoscampbell 10 years ago


Citizen Science contest

Hey! I have entered 1 of my instructable in the sci-starter contest. I wanted to know one thing that the contest states.It says - "Select one or more to solve or come up with your own creative solution to a challenge you face as a citizen scientist!" So, from it I perceived that if I have a problem as a citizen contest I can submit an instructable solving it. So, I submitted 2 of my instructables- https://www.instructables.com/id/HOW-TO-TEST-YOUR-TRANSISTORS-WITH-YOUR-MULTIMETERS/ https://www.instructables.com/id/HOW-TO-CALCULATE-RESISTOR-CERAMIC-CAPACITOR-VALU/ But I  got both of them rejected. As the other instructables in the contest include how to make a motor,how to make a carrot cannon,power your home with steam.etc. I do not think either of them is a solution to any problem. Thank you

Posted by pranjal12 5 years ago


Car Heater/ Warmer

Hello I am Melwin from India I want to create a Car Can/ bottle Warmer/ Heater. My Basic Aim is to make hot water for preparing baby formula my baby when I travel with family in my car. This way I can avoid multiple stops for getting hot water. The commercial versions are available in the Market for a minimum of 3000 Rupees. It is very rare to buy in India My plan is to buy a 220 v 1000Watt Heating Element and cut it to suit to 12v When i measured one test setup with such a coil I get around 1.5 Amps per coil. I didnt have a thermometer to test how hot it gets. Since the car Cigarette Lighter supports 10A. I can easily Add 4-6 Coils of the same length in parallel. Also I can add switch to get different temperatures by adding up coil for each switch. 1-2 Coils = Warm. 3-6 coils = Heat. I dont want it to be a huge cooker. It should be able to heat up a glass (200 ml ) of water till 50- 60 degrees C) A higher version can have a Thermostat to cut off things as a safety feature. If this setup succeeds in boiling up water then I can also have my favourite cup nooodles when on long trips with friends I plan to make a small ceramic frame to mount the heating elemmet. On top I will place a Copper plate. Leaving some gap between the Plate and coil. This entire setup will sit in a Tin can of suitable diameter. I need to think about how i get the ceramic frame to Sit inside the can without touching the Metal. To this Metal can i will attach a handle so that it can be handled when hot. My next question. Where do I place it in my car safely. Suggestions/ Concerns/ Comments please Melwin

Posted by melwinmyworld 6 years ago


Can you build a pmdc motor that can pull a skateboard prety fast on 240W?

I'm trying to build a pmdc motor (perminent magnet motor) based on this video: https://www.youtube.com/watch?v=WKklyuzghQg But I want to make it in a much biger scale and instead of using a ceramic magnet I wan to use 2 big industrial neodymium magnets instead they will pull up to 200 pounds. I want this homemade built motor to pull a scooter like vehicle (skateboard if you will). It will be powerd by 2 12V 10A batteries wich doing the math should get me: 12V+12V=24V 10A+10A=20A 24Vx20A=240W The coils will be made from 1.5mm thick copper wire. Based on what I've said do you think the motor could be powerful enough to pull this scooter with someone standing on it at about 20 to 25mph? can this be done?

Posted by NoahW7 3 years ago


Virtual potter's wheel controls 3d printer

From UnFold via NOTCOT: For L’Artisan Electronique, Unfold created - aside from the ceramic printer - a virtual pottery wheel in collaboration with Tim Knapen. This pottery wheel gives visitors a chance to ‘turn’ their own forms. At regular intervals, a selection of these designs is printed in clay and exhibited in the space. In L’Artisan Electronique, pottery, one of the oldest artisanal techniques for making utilitarian objects, is combined with new digital techniques. The virtual pottery wheel was realised by means of a 3D-scanner and digital design software. However, the installation still clearly refers to the artisanal process of working in clay. The printing process imitates the traditional technique used by ceramicists, in which the form is built up by stacking coils of clay. It looks fun, and even potentially genuinely artistic, but I would like to see a much higher resolution on the scan, to give a less "digital" look to the final object. Designguide.tv interview from Unfold on Vimeo.

Posted by Kiteman 7 years ago


Light(ish) and non flexible.

I am toying with the idea of putting together a non flexible notebook case. I really liked the look of my Timbuk2 sleeve and other sleeves out there, but they always leave out adequate support to prevent flex when in a messenger bag. I am pretty sure that being flexed across my back while cycling with a good amount of weight pressing on it killed the motherboard (twice!) on my old notebook and would like to avoid it again. I need some materials suggestions though. I need a non-flexible material to act as plates to be sewn into the outside covering of the case. Ceramic plate would be ideal, but the things that I have found are anti-ballistic and ridiculously expensive. Plate steel would work but it is heavy. Anyone out there with experience with plate steel or aluminum that can tell me how thin I can go without flex, or maybe some advice on materials that I haven't thought of?

Posted by triplenine 11 years ago


insulating radiator cover

I'm looking for suggesting for upping the r-value on top of my radiator. Every window in my apartment has a radiator underneath it. I'd like to have some plants by those windows ('cause y'know, they need light and all) but I'm concerned about heat from below drying & killing the plants. A couple of the radiators have covers, but they're metal, so no insulation there. Ceramic pots may provide some insulation, but I'd really like to lay down a layer of some kind of building insulation proper just to be safe. The question is, what kind? Batting won't work, and the foam insulation panels I've seen at the hardware store I know are a fire hazard... plus not too fond of plastic-type materials. My dad suggested something he called "thermal block" which I believe is aerated concrete panels, but which I can't find a source to purchase. I'd like to spend less than $20, preferably less than $10 on this. Please help!

Posted by timeismine 9 years ago


Wanted: Instructable for Indoor Solar Chimes

I love the ingenious people on this site and am hoping some one can help me with this.  I have desperately tried to find an indoor solar chime like the one in the photo, but the manufacturer is out of business and other imitations are simply poorly made - unsteady curled metal base, only three wimpy cheap chimes, and mostly plastic. Can any creative, engineering minded soul help me out by writing an instructable for a similarly sturdy, aesthetically pleasing, (ceramic perhaps), resonating-5-toned solar chime like the one in the photo? The premise seems pretty basic - sun hits small solar panel creating vibrations which swing pendulum like mechanism which hits chimes and creates a gentle pleasing sound. I just have I would be very grateful if someone, more knowledgeable than me, would take on the challenge or at least shoot me some ideas on how this can be created!!  TIA

Posted by smiletime 5 years ago


I have a REALLY quick question!

 I have one of these Air Rebound remote control cars, they are LOTS of fun, but  I haven't played it for a long time as the battery is degrading, and it only ever seems to last 30-40 minutes, even when the battery was new. I've just taken it apart and among some simple cleaning and putting a longer antenna wire in (the old one cleverly traveled along the frame and around the inside of the right wheel hub, but I'm sure the longer wire I just attached will help GREATLY. I have this REALLY quick question though and I want to know before I put it back together. Each motor (theres two) has a small ceramic resistor soldered between the + and - leads on the motor, on both of them. The only purpose I can figure this would serve is to LIMIT the speed/power of the motor, and waste battery power? But before I do something stupid I really want to know if there is a GOOD reason for why they put them there.

Posted by Punkguyta 8 years ago


Distortion pedal project

I was planning on making a motion detector with my roommates but that proved a difficult first project so now we have the plans for a distortion pedal for guitar.Here is the design for it and here is where we are going to buy the equipment (except for the audio jacks which we bought at Radio Shack already).Here are a couple of things we need to know first:1) The plan calls for two 10uf electrolytic capacitors, and the store has those but of 5 varieties with different voltages, which ones should we get?2) What kind of capacitors do we need? Ceramic disk?3) The plans call for a 0.0056uF capacitor yet I couldn't find one like that, can I just substitute one similar? If so, which one?4) If anyone wouldn't mind, could someone explain how this circuit works? Preferably answer the other questions, but I would like to learn how it works also.Thanks a lot to all who answer!

Posted by gohuskies 9 years ago


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?

Posted by tbertelsen 6 years ago