Saltwater Etch question - Rubber

Hey y'all, I have another question related to etching my iPod. I took it apart, and now have the aluminum housing with a piece of rubber (latex?) connected to it (the buttons). Do y'all think that the saltwater or current would have any negative effects on it? Thanks!

Topic by Bran   |  last reply



Anyone know of a source for conductive rubber tubing?

Looking for 4-6 MM diameter or in that area. Also sheets. Small quanities.

Question by BubbaOkie   |  last reply



Rubber band aeroplane is not flying correctly

Created Rubberband aeroplane ,and glides fine without propeller.But when the propeller is turned ON ,it just lost the balance and its not climbing into height.The propeller is home made.what would be the reason?.please help me.

Question by AnasCS   |  last reply


is there a way to melt rubber and steel together?

I've been thinking about this for a long time. What I am wanting to accomplish is finding a way to combine steel and rubber together to form a new substance where the two are no longer able to be distinguished from each other.

Question by Jakcavar   |  last reply


How do you melt rubber? Answered

I am trying to make my own rubber-soled shoes. Is there a good rubber I can melt at home for this? It needs to be relatively hard. Also, what kind of mold would I need to use & how would I make that? If I am successful, I will certainly make an instructable. This is the only part I need help with. Thanks.

Question by Wolf Seril   |  last reply


What type of rubber will glue to acrylic and not smell bad?

I would like to glue rubber to acrylic (and leather/cloth potentially). Neoprene worked perfectly, but the smell is horrible. Is there another type of rubber that will easily glue to acrylic and not smell? Silicone maybe? Natural rubber? I have read that both of these also potentially smell, but clearly someone has figured out how to use these without the odor. (...and do you happen to know where to find sheets of this material?)

Question by ScottR226   |  last reply


what is the brand name of the red rubber stuff that you can buy in a can to cover the handles of your tools?

I've seen it before used for making molds for candles and other stuff. does it come in other colors besides red? and where can I find it on line?

Question by jokerrabit   |  last reply


tpr outsole better grip or rubber outsole?

Wnt tok now rupper outole has better grip or and slip resistance than tpr outsole.prefering flipflops as i has to walk  in tiles which are sometimes water spread on it and there is lot of dnger in that.

Question by saketsunny   |  last reply


How does one go about painting rubber? Answered

I've got a respirator for my ceramics glazing that's begging for customization but I want whatever I do to be permanent.

Question by Kaelessin   |  last reply


how to make a standard on/off rc car have variable acceleration? also how to soften rubber?

I bought a "bigtime muscle" rc car from walmart to hack and mod, one of the mods being making the car have variable acceleration. this car has a rather simple receiver board and a unidentifiable control chip, but how to higher grade rc's make their acceleration variable? is that on the car or in the remote? also, the car had rather tough/hard tires on it, so it has very bad grip/handling, is there any way i can soften the tires, or would i have to buy new ones that are softer?

Question by zack247   |  last reply


Gluing PVC sheet: Can you identify 'this' glue? Answered

I am gluing black pvc sheet - I presume its pvc, although not 100% certain, it has that distinctive 'new beach ball' smell to it.  I'm prototyping right now, and I want to do more stuff like this - and will likely post an instructable - trouble is it walks a fine line of 'family friendly'/sfw. Either way; I used Lepage Flexible Plastic adhesive.  It worked quite well, and has proven to be quite strong and flexible so far...Works like a contact cement, but stays very flexible.  No mention on the packaging exactly what type of glue it is though.  My question:  What type of glue is this?  Characteristic acetone volatile smell, works like contact cement.  Package says apply, let dry to touch ~10-30 minutes then close surfaces.  I find it's dry to the touch within a minute or three. (extremely dry climate + warm room I was working in). Rationale:  It's expensive, 4 bucks for 30mL, and I'd rather have a can-container to dip a brush in.  At the hardware store they have plain-ol contact cement, but the transparent/flexible aspect of this is must. Thanks in advance!

Question by frollard   |  last reply


What flexible rubber can i use that will stick to ceramic to make it shock proof?

When the ceramic is broken it does not fall apart completely because its bonded with rubber

Question by abigailjade   |  last reply



Has anyone added springs to a rubber band car? Answered

If so, how did you add them? Did you add it to the stationary point? Will this addition help with the distance of the car? This is the goal: "1. your car must be powered by no more than 2 rubber bands. may be any size. 2. body of car may be made out of most common household materials. wheels may be previously manufactured, but body can not be. 3. may not launch or catapult car. must be self propelled." 

Question by bluefly1215   |  last reply


Is there a way to make an everyday laptop into more of a toughbook?

I just want to be able to protect my laptop slightly more. I dont need it to withstand huge drops, or be super waterproof, but i want more protection than any simple cover can provide. maybe a few keyboard, screen covers, some rubber edges? Idk any ideas?

Question by robert.torres   |  last reply


how can i design a rubber band pawered launcher?

This is a design project that i must do a rubber band powered launcher. the launcher must be able to reach a target 0f 2400mm from origin and it must be in the form of a vahecle

Question by rulph   |  last reply


Anyone know about adding gears to a rubber band powered car? Answered

Would it increase the distance? If so, what size of gears or the gear ratio? How would I incorporate them to the wheels? 

Question by bluefly1215   |  last reply


ornithopter crank does not rotate (rubber band model that i'm building)

When i wind up the rubber band , the crank is pulled back too tightly against the bearing and the connecting sticks refuse to budge due to friction and the wings don't flap.is there a better non friction way to do this?i mean, if the rubber band pulls the crank back through the hook, there's bound to be friction. how do i solve this? please help.

Question by promit.net   |  last reply


DIY Slik Stik joystick for Atari, repair rubber washer spring?

I have 5 or 6 of these Slik Stik joysticks for Atari 2600/Commodore 64, but they all inevitably break, which is too bad because they have a nice feel. The main problems are the self-centering "spring" is a rubber washer around the stick that deteriorates, or the metal shaft bends. The bent shaft is easy to fix (just bend it back into shape). But could anyone suggest how to replace the rubber spring?  Preferably something that is * cheap, quick, easy * uses readily available parts * won't degrade over time too much * looks OK (not too noticeable a hack) It would be nice to fix these so that they last, I just don't have the time / skills to get into a really complicated project. I think there are parts online but if there is an easy cheaper DIY solution I would prefer that http://www.smithbrothersplowparts.com/store/index.php?l=product_detail&p;=15104820

Question by apple-o   |  last reply


Can Sugru prevent an old, eroded rubber gasket from failing?

I have a great old Corona ultrasonic humidifier that is 21 or 22 years old. The humidifier works like a dream, but the old rubber gasket around the vibrating plate is going to fail soon. I am thinking that Sugru would be a fix to model around and on top of the existing gasket. Anyone think it would have trouble under water? It's one of the best old humidifiers  but has gone out of production. Have kept this sucker clean and in good order. The gasket has eroded considerably, and if it goes it will be a dead machine. I have repaired the broken water tank twice. I used a piece of Sugru to hold an old toilet flapper in place inside the reservoir tank and it hasn't moved in months. Anyone work with Sugru for things underwater? It is my only hope to keep this great old machine working. Sooner or later, it will go, but it is a grand old remnant of the days when we built things to last. My old metal blade fans are still going even after a switch had to be replaced. Good maintenance will keep things running  long after they are supposed to fail from use. Appreciate anyone and everyone's help. Thanks! Tess Elliott

Question by tesseliot   |  last reply


good ideas for a van de graff generator belt

I'm making a van de Graff generator and i was wondering what would be some good things to use for the belt could a bicycle inertube work or would that be to conductive i read some were that usually black things have a slightly conductive coloring or something one more thing i was looking at the triboelectric series and was wondering what end the belt should be on aswell as the top and bottom roller

Topic by Tanners   |  last reply


Anyone know how to rig up a small scale belt driven axel system for an altoids racer? Answered

Alright, so here's my idea. i have a small dc motor, i don't know specifics on it, however, my plan is to fit it, as well as a 9v battery with a on/off switch. i also have a ton of other pretty cool ideas for it. i also plan to have 2 axles with one(or both) attatched to the motor. this is where i run into snags. i thought of rubber bands for a belt driven system, but the only rubber bands i can find are too big. i tried modifying the length of the rubber band by using gorilla glue but that just made the rubber band brittle. anyone have any ideas? thanks it'd help out alot

Question by UrbanEngineer93   |  last reply


How can I repaint rubber buttons on remote control / game controllers? Answered

Hey all, I bought some cheap game controllers from Hong Kong, they seem to be working. Problem is the buttons are all numbered "1-2-3-4-5-6----". To use with Nintendo or Sega games, I'd rather repaint them to "Start - Select - A - B - C - X - Y - Z - L - R". They are just rubber buttons, similar to ones on a remote control. The numbers are painted onto the buttons. So is there a way to strip the current numbers off, then repaint / reapply somehow my own letters?

Question by gedditoffme   |  last reply


push button contacts fail

Hi, i disassembled my full-automated coffeemachine as the push buttons for programs failed. The buttons are a line of rubber and the contacts on the platine are toothed while each rubber contact got tiny plates that bridge the contacts on the platine. I guess that the contact plates lack of conductivity - any suggestions what i can do to improve the conductivity? I thought bout buying contact foil and glue it over the rubber contacts, but i don't know, if this is the best solution.

Topic by Luziviech   |  last reply


Anyone know how to rig up a small scale belt driven axel system for an altoids racer?

Alright, so here's my idea. i have a small dc motor, i don't know specifics on it, however, my plan is to fit it, as well as a 9v battery with a on/off switch. i also have a ton of other pretty cool ideas for it. i also plan to have 2 axles with one(or both) attatched to the motor. this is where i run into snags. i thought of rubber bands for a belt driven system, but the only rubber bands i can find are too big. i tried modifying the length of the rubber band by using gorilla glue but that just made the rubber band brittle. anyone have any ideas? thanks it'd help out alot

Topic by UrbanEngineer93 


microwave is noisy

How can you quiet vibration on side panel where magnatron is located, if I put my hand on this location you can feel it vibrate and by applying a little pressure the noise is cut in half , tried  square piece of rubber used as seam tape for rubber roofing helped a little but looks ugly (wife) 

Question by kgroz   |  last reply


How to fix a PS3 controller??

So i was playing Skate 2 when I had to go into my kitchen and put away some things. I came back, but forgot I put the controller under the gaming chair when I got up, so I sat, and the chair rolled right over the controller. I looked at it and the left joystick was half out. I pushed it back in and it was weird. It wasn't always in the middle. It would stay up, or left, or upper left, lower right, etc. I pulled the rubber part off and realized that the rod connected to the controller had to go in a slot in the rubber part. But considering the outside of the rubber part have to go INSIDE the controller, and it's hard to do. I tried unscrewing the bottom, but idk what kind of screw it is. I NEED HELP!

Question by Flumpkins   |  last reply


Flexible PCB rewiring

Hi,     I'm working on a project where I want to strip a 'roll up piano' down and take the rubber keyboard innards which feed into the electronic sound unit and get rid of the floppy rubber roll up piano keyboard and replace it with a standard PC qwerty keyboad. I got used to using a qwerty keyboard for playing tunes already and want tomake one that is stand alone that I don't need to connect to the PC to play music with. That means I need to take all the connections that you can see in the photos I uploaded and re connected each one to a key on the keyboard.  First of all, I don't know if pressing the rubber key on the roll up keyboad 'completes a circuit' and therefore prompts the electronic unit at the end of it to play the sound or if it 'breaks the circuit'. These units have two flexible pcb sheets as you an see in the second photo so when the rubber key is pressed they touch (although they all seem to be pretty much touching anyway). In an old casio solid keyboard I have there is a hard pcb and the piano keys touch a small rubber disk (much like is what under qwerty keys) to the pcb.   would it be better for me to take a razor and painstakingly slice up the flexible plastic which the pcb is printed on then lead them to the innards of the qwerty keyboard I'm going to modify or would it be better for me to just chop the flexible pcb off and use some kind of very thin coppe wire to feed dirctly into the unit and to the underside of the qwerty keys?   Any guidence would be appreciated.    

Topic by poita   |  last reply


how to raise the titanic?

 From this suggestions , can the titanic be raise? 1.Fill with table tennis balls. 2.Using nitrogen , make an ice block to float the ship. 3.Make crane-boat the winch the ship. 4.Using giant rubber to raise it.

Question by koyo   |  last reply


Compress propane gas? Answered

We are in the process of recycling rubber and waste tyre casings. One of our by products is propane gas. I would like to know if I can use a normal air compressor motor to compress the propane gas into a propane gas cylinder?

Question by Richray0987   |  last reply


Devil Ducky Flash Drive mod

I've been searching the web for a tutorial on how to mod a rubber ducky or, preferably, a Devil Ducky to hold a flash drive. There was a lot of chatter about a website at freshlysqueezedflash.com but it and its tutorials are now defunct. Anyone have any suggestions?

Topic by bcr8ve   |  last reply


steel cable as a transformer core? Answered

Could i use thick steel cable as a transformer core (1 inch stranded cable) if i saturated it in a nonconductive (epoxy? rubber cement? ect..?   material to eliminate eddy currents and molded it into a double C core?

Question by pwnag3   |  last reply


Lost larynx to cancer, now use electronic voice, battery powered. Feel it could be improved - refine electronics?

After losing my larynx to cancer last year, i now use an "electro larynx" (http://www.griffinlab.com/Products/TruTone-Electrolarynx.html) a great device which translates the vibrations my mouth makes when i "speak" with a rubber tube (the exact same as the one my dentist uses to extract excess saliva) in my mouth. The vibrations are transmitted somehow to a vibrating rubber disc inside a handheld device. There are a few other bits too technical for me to understand and describe, but the end result is an electrical voice a bit like Stephen Hawking's. The machine has a plastic disc built into the lid, held in place by a rubber gasket round the edge, which is made to be pressed against the underneath of the chin or the upper neck. When the laryngectomee speaks,  the vibrations of the throat cause the disc to vibrate, which in turn oscillates a small plastic rod underneath the centre of the disc. This rod runs through the centre of a rubber disc, which is vibrating at high speed because the laryngectomee also presses a button when (s)he speaks, causing it to do so. The vibrations somehow pick up the voice vibrations and turn it into electronic speech. Underneath the rubber disc is a some sort of coil of copper wire almost the full diameter of the machine, and there are 2 pieces of wire soldered into place , too. I don't have a clue about electronics or really anything, so i'm hoping someone out there can make sense of this mumbo jumbo. I'm sure that having a look at the website will help. As I said, normally the device is pressed under the chin, but my neck and chin are rock hard from having loads of surgery, so they don't vibrate - the clever people came up with the solution for people like me: a thick rubber cap fits over the top of the device with a hole through the middle, 5mm maybe. into that is inserted the piece of dentist tube i mentioned earlier. this somehow does the trick, and once more i have the miracle of speech! Now, as I said, this machine is amazing, and certainly beats having to write everything down. trouble is, it has a volume control wheel which is so difficult to get into the right spot, it goes from way too loud to almost inaudible. Now, having seen some of the stuff you guys come up with on here, and the apparently relative simplicity of the machine, i was wondering if anyone could come up with a solution to my quandry....Yours, speechless, Dave.

Question by DavidK75   |  last reply


What would be best to carry light emmited from a gauntlet to the back of my skull (Bane Costume)? Answered

I already have dissasembled a old Light-saber for the Light, I was thinking rubber-tubing but that failed, does anyone have brilliance where i am drawing a blank?

Question by    |  last reply


How strong is bondo body filler? Answered

How strong is the bondo body filler? Im looking into making custom molded handles with a castable plastic or rubber and was looking at bondo. Would it suffice for making a light handle? Whats it like when its dry in terms of wear and tear,texture.care,and strenght?

Question by trf   |  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


Pushbutton Question Answered

I have been taking apart Gameboys and keyboards. These devices have buttons or keys that you push to play a note. When I take it apart, I dont see pushbotton switches like id expect. Instead I see a rubber form with a little black dot on it, and when you press it, the black dot touches a black surface on a PCB. Anyone know how this works?

Question by crocboy   |  last reply


Printing a circuit on clear plastic?

Hi Guys Inside most modern keyboards, you find a rubber membrane that presses a sandwich of three layers of plastic, with the upper and lower parts having circuits on them that make the contact. Is it possible to 'print' this type of circuit at home on standard laser or inkjet printers?  I could use Amanda's method with bare conductive ink, but printing would be better. Any info appreciated ;)

Topic by wizer   |  last reply


How to make a mylar balloon from a space blanket

I want to make a hydrogen balloon and am afraid rubber won't hold the gas in well enough. I was thinking I could make a balloon from a space blanket but am not sure how to connect the edges. I thought maybe I could fuse them with an Iron but am not sure. Will apreciate any help.

Question by nurdee1   |  last reply


Is there a compound similar to translucent silicone sealant paste, for making thin 2-3" dia. discs?

I am making a DIY digital interface (using Arduino and MaxMSP), the touch-pads will have embedded super-bright LEDs and I'm looking for a compound similar to translucent silicone sealant gel. I'm concerned that, once dried/cured, the silicone will still retain some chemicals harmful to the skin (fingertips)

Question by brendanmccloskey   |  last reply


Build a shocking device from 12volt source with 120 volt converter? I have 12volt jump starter with 150 watt inverter?

I have a doggy gate accross my kitchen, it is all metal but has rubber insolaters on the ends were it attached to the wall. my big dog jumps up on it and moves it around. i would like to stimulate a small shock that would deter this action.

Question by vdochuck   |  last reply


How could I make a rigid USB keyboard fold in half?

No one seems to manufacture a full size 104(?) key keyboard which folds (the way the first IBM Thinkpad's notebook board did) so as to fit in a backpack or notebook case. I do not like to type on those rubber roll up keyboards. Any ideas on how I could build a folding keyboard? Thanks

Topic by TAP119   |  last reply


Disassemble a microsoft 2000 wireless mouse (keyboard combo)?

Its middle click is wayyy too hard, I found a guide which says it can be fixed, but I can't figure out a way to open this piece. There are no visible screws , I tried pealing off the bottom rubber pads, but found 0 screws. Also pealed off some sticker below the batteries, still nothing. Help please !

Question by kutchbhi   |  last reply


Can a hot wire cutter be used to cut shapes in acrylic or perspex?

Is there a tool that's relatively cheap to buy, that I can use at home to cut clean shapes from acrylic, perspex, rubber, thin sheeted wood (any of the above)? I'm thinking of a similar finish (although obviously a bit less pristine) to that produced by a laser cutter. Thanks!

Question by alicecc_21   |  last reply


Pro tips for getting rid of last bit of jello? Fine tuning 2 axis basecam gimbal?

I have a quadcopter build up with a simple $60 basecam gimbal, a mobius camera, and I have finally got some better motors, the $60 set of EMAX 2213 brushless motors with standard nylon props. (I am still a noob at flying, esp. FPV. on-screen.) (previously, I have been using those notoriously bad genaric china orange/silver 2212 motors 2 of which even had loose, rattly bearings! I did not even bother attempting to ballence since the aluminum prop holders were bent, and some even had partially stripped threads! They were really needing to be replaced!) The gimbal is CNC aluminum mounted, and has 4 rubber suspensions that are supposed to isolate vibration, but they do not remove jello completly. (getting the new miles better EMAX motors and going the best to ballence the props and hubs definitely helped, but did not remove jello entirely.) https://www.youtube.com/watch?v=hajzljufl2I On every crash, the rubber suspension ball things would pop out, and they did quickly wear out, and one of them ripped right apart, so I bought more. They are the same stiffness, I could not source a large quantity of more flexible ones unfortunately. Not for a decent price, anyway. So other than balancing the props with a simple prop balancer, and changing out the rubber balls, what can I do to get the jello down more?

Question by -max-   |  last reply


How do I stablize a small laptop so I can write while traveling on a cummuter bus?

I have a one-hour commute on the city bus to work. I would like to work on my laptop, but cannot stablize it in my lap during the bumpy ride. How can I build a small portable tray that can hook to the seat in front of me, with vibration suppression (rubber shock absorbers)?

Question by    |  last reply


when cutting a mold for jewelry i am not getting all the details?

I am confused with this one, i have vented it (from a couple of times to many times) i am using a silicone rubber. the piece is only 1 inch but has a lot of writing on it. i have cured the mold properly. i have played around with wax temp. (i use a injectomatic) i have also done alot of different pressure tests. need help badly thanks

Question by hummis   |  last reply


Stuck plunger help?

I recently got an antique syringe, complete with needles and all. It is in perfect working order, clean and rust free. The only problem is that the rubber plunger is stuck in the glass tube and won't dislodge. It has some rust like buildup around it, but it rinsed off the end easily. Can anyone help me get it out? ( I want to keep the original glass tube because I would like it to be complete and not have a new glass/ plexiglass tube) best answer to the solution that works.

Question by XOIIO   |  last reply