Instructables: question - workshop Mon, 20 Oct 2014 01:12:42 PDT BLOX v1.01 With 8.5 volt r/c battery, i want one 3 volt light. What size resistor do i use and from where to get it? marcs3 I tried hooking up the 8.5 volts direct of course it torched the light.  I want to wire this light, or perhaps two of them to the 8.5, 3300 mAmp battery from the picture, this battery is about as long as a smart phone say if that even matters.  Please someone can tell me, what resistor to use, where...
By: marcs3

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Sat, 18 Oct 2014 14:39:58 PDT
tiny bowl style centrifuge? snowfox222 im trying to figure out whether this will work or not, but i cant get all the math together. i want to either A: make an attachment for my food processor to make it a bowl style centrifuge. or use a hdd motor and a brushless esc. my food processor is rated for 1750 rpms, and i figure enough room for...
By: snowfox222

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Fri, 17 Oct 2014 18:03:09 PDT
How to connect a normal household fan to a battery? axelkaaber Hi everyone I'm trying to connect a standard 230V- 50Hz 25W fan to a battery to make it mobile for a project I'm working on. I want the battery to be able to power the fan for at least an hour before recharging it.  What type of inverter will I need for this and what kind of battery? Thanks!
By: axelkaaber

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Fri, 17 Oct 2014 02:25:52 PDT
how can i concentrate of a bulb light at a point ? m_uamir72001 I have a bulb ( pic is attached ) and for some experimental work i have to concentrate its all light at a single point. can anyone help me that how can i do that ??
By: m_uamir72001

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Thu, 16 Oct 2014 09:26:00 PDT
I am making a small hot tub out of plywood. What can I paint the inside with ? joe.ashenbrucker
By: joe.ashenbrucker

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Wed, 15 Oct 2014 16:50:26 PDT
can super caps be used with rotating magnet to form generator? infoseek rotate cylindrical magnetic bar over circular super cap as it's or short her 2 internal plate (hopefully if we can) to act like one flat ribbon coil nano wire made of carbon instead of copper. nano tech also should be implemented in small medium even large motor/generator and I think it would yield ...
By: infoseek

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Tue, 14 Oct 2014 18:57:04 PDT
Could I get some advice when building a very strong vortex cannon? KhanSupreme. I want to make something like this but without a shotgun. My question is, would hooking up an air cannon to the vortex cone work? If so, how or would there be a better way? If not, how e...
By: KhanSupreme.

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Tue, 14 Oct 2014 11:03:33 PDT
how can we know how many votes are there for our inscrutable that are entered/accepted in the competitions ? mchhabra1 jlj
By: mchhabra1

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Tue, 14 Oct 2014 01:08:28 PDT
Getting a broken screw out of mdf? xander.zoolander Okay I have this problem with a screw being stuck.  It's a small screw size, like maybe #10, but can't tell. It's stuck in 3/4 inch mdf, and it goes through the mdf. I've tried everything to get it out. Pliers don't work, and I absolutely CAN NOT drill out a larger hole.  I tried super gluing a nut ...
By: xander.zoolander

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Mon, 13 Oct 2014 20:58:46 PDT
Converting gravitational potential energy into air pressure to launch a projectile? ahoback Hello my name is Aaron! I am a high school senior from northeastern Kentucky designing a pneumatic system of sorts for a science competition and need some help. I will be building a device that converts gravitational potential energy, from a falling mass, into air pressure (or possibly the movement ...
By: ahoback

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Sun, 12 Oct 2014 18:38:23 PDT
plastic/metal tube branding? jordanbork I am looking to brand my own products for my store. The products are small tube batteries about the size of a sharpie's body. They come in two materials, a plastic/rubber material that is difficult to scratch/dent but has a soft feel and the other is a stainless or anodized metal. I see two possibil...
By: jordanbork

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Sun, 12 Oct 2014 07:49:00 PDT
How to delete an instructable that has entered a contest? theedisoneffect I made an instructable and i got it entered into a contest. I want to delete the instructable. But i cannot delete the instructable becuse its entered into a contest. The contest is now closed. What do i do to delete the instructable?
By: theedisoneffect

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Sun, 12 Oct 2014 00:41:08 PDT
how much current is required for a 12v,15w bulb ? jordon.johnson.756
By: jordon.johnson.756

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Thu, 9 Oct 2014 11:16:27 PDT
What is this wire clamp called? muhammajunaid The picture below shows a wire clamp which allows the wire to move in one direction only. to release the wire to the opposite direction one  has to push the small metal valve as marked with an arrow in the picutre below. I need to know what it is called ? thank you
By: muhammajunaid

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Tue, 7 Oct 2014 02:12:34 PDT
Hi Every one. My question is what can i do to add a self start & alternator for battery charging to 1hp gasoline engine maziz4 As i said i want to add a self start to 1 hp petrol/kerosene engine . i know this is quite difficult but i am a tech lover & i am working as maintenance in-charge in hotel. The main reason behind this question is we have small business of sugar cane juice in our town since last 20 years(almost that ...
By: maziz4

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Sat, 4 Oct 2014 03:00:31 PDT
What to cast? knutknackebröd Hello, I plan on casting some aluminium soon. However, I haven't decided on what to cast.... any ideas??
By: knutknackebröd

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Fri, 3 Oct 2014 15:51:31 PDT
Possible to make an omelette on-the-go on rechargeable batteries? gojillah Hi guys! I really need your advice! I want to make a device where you can bake an omelette outdoors where there's no poweroutlet available (like a mini portable stove). So my question is if it's possible to use rechargeable batteries (maybe LiPo batteries?) to make enough heat to bake at least one ...
By: gojillah

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Wed, 1 Oct 2014 14:37:59 PDT
Technique for Felting Inside of Wooden Box? tomatoskins I'm currently making a jewelry box for a Christmas present. I look back at the various boxes that I made years ago in wood shop. One of the techniques that I used back then was putting felt (or something felt like) on the inside of the box. The process is you tape off where you don't want to be pai...
By: tomatoskins

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Tue, 30 Sep 2014 10:55:25 PDT
Need help finding a a translucent rubber that can be molded into a lasting reusable shape SebastianK1 I am looking for a rubber that could be molded around a pen to create a case for it.
By: SebastianK1

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Mon, 29 Sep 2014 16:49:36 PDT
Armour preservation? knutknackebröd Ok so I've made some plate armour before and I'm wondering what the best LOW BUDGET preservative would be? For the pieces I've made I used silicone spray because its thick enough, however I've read on another forum that some people use vaseline(without skincare additives). Now the core of my questio...
By: knutknackebröd

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Sat, 27 Sep 2014 11:28:22 PDT
Use of diodes when connecting solar panels in parallel? caradiodoc I have a bunch of 24 volt 270 watt solar panels.  Eventually I'll be putting three in series, then combining the strings in parallel, but for a temporary measure, I want to just connect two in parallel.  I've been in tv repair for over 40 years so electrical theory doesn't confuse me, but solar syst...
By: caradiodoc

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Fri, 26 Sep 2014 22:52:11 PDT
Can I enter more than 1 Instructable in the same contest? richard62 I have 2 completely different Instructables. Both would be applicable to the same contest. Can I enter both in the same contest?
By: richard62

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Wed, 24 Sep 2014 14:42:40 PDT
Can you identify this tool? I believe it is used on firearms. JamesJ3 This tool came in a box of firearm items, however we have been unable to identify what it is or what it would be used for. The overall length is 2 7/8 inches, largest diameter is 3/4 inch, smaller diameter is 7/16 inch, has a 3/16 slot on one end and two 1/8 inch pins in the larger end, pins are 1/2...
By: JamesJ3

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Mon, 22 Sep 2014 14:25:52 PDT
How to clone tomatoes, sweet basil, and mint? LucuferL I live in a small town and I am a newbie to cloning and I don't know if weather or area make a difference but I've tried a couple of times with the mint but, no luck. my product is Brand: gardentech Product: RootOne rooting hormone with fungicide. please help im lost.            oh and by the way my...
By: LucuferL

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Mon, 22 Sep 2014 00:41:14 PDT
Is it possible to patch a glass globe such as one used for a hurricane lantern? kakashibatosi I have a hurricane lamp and the glass recently cracked. I have no ability to replace it and I'd like to patch it so that the crack doesn't spread any further. The globe is small, so it's really easy for the flame to come close to the glass. Is it possible to to fix it? None of the glass has fallen o...
By: kakashibatosi

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Thu, 18 Sep 2014 17:40:28 PDT
Electric motor to turn large, non-centered load? sangretoro I would like to get a solar-powered motor to turn a compost tumbler at very low speed, and would like some advice at what the cheapest motor I can get that would do the trick. My idea is to have a ratchet system so it only needs to turn one click at a time every hour (having the compost bin make a f...
By: sangretoro

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Wed, 17 Sep 2014 08:06:37 PDT
Where to buy enamel paint(online shops)? dsirotic Hello! I live in croatia, and I can't seem to find what im looking for here.  I am searchng for a shop that sells all kind of automotive paints, and ALSO has worldwide shipping! Im searching for the Bronze enamel paint, as I have to paint my Motorcycle, which is made of plastic. Also, I am not loo...
By: dsirotic

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Mon, 15 Sep 2014 12:44:14 PDT
What would cause every other cylinder not to fire on a big block chevy? vince 09 In my truck I have a 366 big block chevy motor and cylinders 2, 3, 5 and 8 are not getting spark and the firing order is 1,8,4,3,6,5,7,2. So I am not getting spark to every other cylinder I have an H.E.I distributor. I am thinking it could be the ignition module but am not sure any help is appreciat...
By: vince 09

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Fri, 12 Sep 2014 17:10:53 PDT
Would bed pillows make good insulation for a roof? jeniferchurch I'm planning an earthbag house, and with its vertical walls, I need a roof. I'm going as cheap as possible, and I wondered if this would serve as a solution? I can get pillows from Walmart for about $5 a piece.
By: jeniferchurch

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Fri, 12 Sep 2014 07:08:23 PDT
How can I make a giant bike cog like this one? nathanaloysiusbash Here's a site with  the inspiring article:  Anyways, I want one. First of all I would suppose I'd need a pattern. What program would you suggest I used to make a pattern?  A solid circle of metal with teeth on it wil...
By: nathanaloysiusbash

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Thu, 11 Sep 2014 17:03:53 PDT
soldering iron problem amazinghannure i have a soldering iron which  is  expensive and used to work well but after some time instead of melting the solder it made balls of iron which were still connected to the solder and never stayed on the soldering iron. please help
By: amazinghannure

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Thu, 11 Sep 2014 09:22:38 PDT
my king charles 8 goes for my daughter pup 8 weeks old is it safe to leave them will my dog hurt the pup? christine.adams.773
By: christine.adams.773

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Thu, 11 Sep 2014 06:14:32 PDT
how can i use dc or ac motor as a generator? azri.azil hi guys i'm doing an experiment by using a dc or ac powered motor as a home generator it is like a backup generator. I'm trying to do the experiment as part of free energy solution experiment. which motor is more reliable as i know that dc motor is good at speed control and it is cheap but it is hig...
By: azri.azil

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Sun, 7 Sep 2014 19:33:31 PDT
I joined 2 pieces of pine together. How can I make the seam invisible? jcliller I am replacing the stair treads in my house by removing the carpet and then replacing them with pine treads bought from Lowe's.  The problem is I have 2 stairs that are longer than the 4' tread.  I joined two pieces together to make a longer one using a dowel rig, glued them together, and clamped th...
By: jcliller

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Thu, 4 Sep 2014 19:43:12 PDT
How to make an LED lamp from scratch? Squash I am wanting to make a 5-LED table lamp that plugs into the wall and also has a cord with a switch.  I do NOT want to start with a new LED lamp from a store.  I can find bits and pieces of projects on here but I'd like detailed help in doing this.  I do not have electrical experience but I catch on ...
By: Squash

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Tue, 2 Sep 2014 09:50:23 PDT
can we use the magnetic attraction and repulsion in petrol engine? Ramadossk instead of using compressing of gas using  combustion and passing gas and using spark plugs ..... shall we use a dipole magnet in the place of spark plug and and a magnetic piston with a pole on top side.if we rotate the magnet at the spark plug place ,when the opposite pole comes down .......the pi...
By: Ramadossk

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Fri, 29 Aug 2014 03:50:28 PDT
Name brand vs generic dremel? astroboy907 I'm doing a project that involves grinding PCB slots off of an aluminum enclosure and making everything fit right - due to the shape of the enclosure it looks like I will need a flexible shaft in order to get into the case. A Dremel seems to be a good tool to use, however I am looking for something...
By: astroboy907

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Wed, 27 Aug 2014 12:54:02 PDT
Failure to see posted comment? CurtR I signed in and posted a comment to an Instructable but nothing happens when I click on the Post button.  Am I missing something to do?
By: CurtR

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Sun, 24 Aug 2014 07:55:18 PDT
the knob on the guitar tuner key fell off what can i use to fix it? lizbeth00 i dont have the money and i love this acoustic guitar what can i use to fix it?
By: lizbeth00

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Fri, 22 Aug 2014 19:01:37 PDT
need a custom built sofa for 2 people? randfmoore space is limited so max Ht 85cm, Depth 85 cm Width 170cm.  Needs to be of simple construction!
By: randfmoore

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Fri, 22 Aug 2014 08:46:06 PDT
A speciel stepdown converter? joshua1993 Hello guys of instructables! I'm writing on this forum, because I think you the only guys that can help me! My situation: I'm from Europe (Nordic part), and our voltage/hertz is 230v 50hz - I think. What I'm trying to do is using american clippers here in my country, but what I've experienced is ...
By: joshua1993

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Fri, 22 Aug 2014 02:35:27 PDT
How build a cost-effective device that automatically clears exhaust fumes out my garage? rockandroller Soon I'm going to move into a building which shares living quarters with a garage. I'd like to rig up some sort of relay-triggering device that opens a nicely sealed set of vents (one intake, one output) and activates a fan exhausting garage air  - one that activates the minute I open the garage doo...
By: rockandroller

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Thu, 21 Aug 2014 23:52:48 PDT
Does a 2-stroke Honda CB 100 NE engine need a battery to run? Ikkalebob I have a Honda 2-stroke CB100NE (1018034) engine which I am trying to get working. This is the first time Ive worked with an engine so my knowledge is quite fragmented. So far the engine will turn over using the kickstart but I've been unable to get a spark. Documentation for this specific engine se...
By: Ikkalebob

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Thu, 21 Aug 2014 04:34:12 PDT
Hydraulic drive for trike.? rickharris I am in the (long term) process of rebuilding my tricycle recumbent bike (a tadpole configuration). At present it has the usual long chain driving the rear wheel. I would like to do away with the long chain for several reasons and am toying with the idea of using a hydraulic drive. Cylinders at fro...
By: rickharris

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Tue, 19 Aug 2014 12:14:04 PDT
Is it possible to have an Electric AC in Car? Beekoz Simply, I want to replace my Car AC with one with the same power but runs on Electricity and cover the car roof with solar panels to run it. Is it possible? I mean is a AC of this power capable of running on a current produced by a solar panel of the roof's size? How to calculate these things? I ha...
By: Beekoz

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Tue, 19 Aug 2014 04:53:41 PDT
By: silvadalegria

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Tue, 19 Aug 2014 00:51:17 PDT
Watch Repair? mclare50 I've recently received an old watch from my mom. It is by the brand Futura, it is a quartz, Japanese movement, steel backing, etc. The winder moves freely and also moves the hands,  but it does not record time. I have tried removing the back to check for a battery and it does not appear to have one....
By: mclare50

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Mon, 18 Aug 2014 13:29:49 PDT
Why do parachutes spread apart? I used to think triple and double chute systems like those found on the SpaceX Dragon had special designs to cause the chutes to spread apart but I recently build a double chute system for my sugar rocket and discovered my chutes don't just spread apart, but do so approaching a 90 degree angle (prob...

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Thu, 14 Aug 2014 20:40:59 PDT
advice for a simple sturdy saw horse design, please?? HelenaTroy Having recently moved into a new home, I should get down and try some simple DIY for myself without having to book the handyman.  First thing I should make is a work bench, or a saw bench (hand saw only) I searched for sawhorses and found several, but: I have a lower-spine injury that means I can't...
By: HelenaTroy

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Thu, 14 Aug 2014 15:47:46 PDT
flow meter? aqsa mustufa how to construct a flow meter to measure the flow of water(or any fluid) at home? what materials and construction steps are required??
By: aqsa mustufa

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Wed, 13 Aug 2014 08:08:13 PDT