Instructables
There are hardly any instructables on this subject, and none with this design. It's an original idea by my dad and I. We were going for as cheap as we could go, while still making a product we wouldn't be embarrassed to use in public.


We built a full set of electronic drum pads, which I'll explain here, and also a low-cost PVC rack for the drums, which I'll post a separate "how-to" on.
 
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Step 1: Materials

For each drum pad, you will need:

1x - 3/4 inch plywood, 8 inch diameter circle

2x - 1/4 inch foam of some sort, from mousepad or floor-mat...(more on this later), 8 inch diameter circle

1x - sheet metal, preferably of some light or medium guage, 8 inch diameter circle

1x- smaller square of sheet metal, about 2x2 inches

1x- peizo-electric element, 35mm is better, but 27mm or something will work

1x- heavy fabric, i used a material called "trigger" that's used for work uniforms, circle with at least 14 inch diameter

1x- vinyl material, 8 inch diameter circle

1x- RCA style audio jack

1x- plumbing bracket with 3/8 female threading, normally used for attaching pipe-hangers to surfaces

Step 2: Tools

pretty much just:

soldering iron + solder
hot glue gun + glue
Jigsaw
scissors
sheet-metal "snips"
heavy duty stapler and staples (1/4" or longer)
power drill
drill bits (1/4", 1/2", and screw drive bit)
short screws for attaching bracket to bottom of pad
screwdriver
djrickdawson4 months ago

would this work?

http://www.maplin.co.uk/p/3v-ceramic-piezo-transdu...

to connect to the input on this, which i already have:

http://www.halemicro.com/wp/products/umc32m/

rcdfish875 months ago
Can I buy a set from u? If so how much for 10 pads?
Good job done by both of you..Can you please tell me what is the overall expenditure to make this product..Ultrasonic Sensor Manufacturer
Dyte3 years ago
So when you're using mouse-pads, you have to stack two on top of each other, do I understand that right?
abermúdez3 years ago
Wooowww! Excelente! Gracias, thank you from Argentina!
idontcar33 years ago
aww yeah.. the instructable is cute ^^.. but i can't seem to find piezos locally.. thank you so much ^^
idontcar33 years ago
your sister is cute ^^
Dyte3 years ago
Absolutely awesome. I always wanted an electronic drum kit but I didn't think it was possible to make one.

Just one question. Do most drum modules come with the option to record your own drum samples? I'm a total noob.
benjaminmailloux (author)  Dyte3 years ago
Thanks! I know very little about the subject as well, but I'm pretty sure most modules do NOT let you record your own samples. You can instead hook up the drum pads through a different kind of interface so that they connect to a computer with the right software, and you can then theoretically program them to any possible sample.
I see. Now I have to find out what exactly that different kind of interface is ... Thanks!
benjaminmailloux (author)  Dyte3 years ago
http://drums-percussion.musiciansfriend.com/product/Alesis-Trigger-IO-Percussion-Pad-to-MIDI-Interface?sku=449754

Just an idea. I'm sure there are other brands, but this one keeps coming up when I did a google search. I think what you're looking for is called a "Trigger I/O module". Also, with this I'm not sure if you would also need a MIDI to USB interface for your computer or if this has a USB output already.
Interesting.
Apparently you can also make it using an arduino.
This guy describes it: http://todbot.com/blog/spookyarduino/
I'm gonna try it that way using your pads! I'll keep you posted :-)
Patented4 years ago
So do you have any kind of software so you could plug it into your computer and get sound out of it ?!
benjaminmailloux (author)  Patented4 years ago
 I don't. I just use the external drum module with it's on-board sounds. If you got a trigger interface for the computer you could though. 
Patented4 years ago
Hey, this is looking awesome and im planing to try it! But I was wondering if the piezoelectric element is one of those things we can find in like ''sound playing greeting card'' , and that act as a speaker?

Thanks !
benjaminmailloux (author)  Patented4 years ago
 I may be wrong,but I think the speakers in those cards are usually just thin, cheap speakers of the regular magnetic design, with plastic speaker cones. 

Luckily though, the peizo's I used for this should be available at almost any Radio Shack, and only cost about $2.50 or so each. 

If you don't have a Radio Shack nearby, they can be found online from a large number of sites. You could just do a search for "Peizo-Electric buzzer" 

Good luck with your project, I'd love to see what you come up with!
Hey, Thank you for your answer ! I will do some research to know if the piezo buzzer is the thing I am talking about ! If not I will go buy it to the radio shack replacement : ''La Source'' and I will post news when ill be finished !
ur sisters hott
Is that the only reason you clicked it?<br/><br/>What do you think about the drums?<br/><br/>=P<br/>
It was my only reason >.< i was learning how to build guitars til i saw this. haha
i think their pretty cool and no thats not the only reason
so, benjamin, could you send me the french traduction of your tips, parce que je vis en france et que j'ai vachement du mal avec la langue anglaise... mais je trouve ton projet super intéressant... Thanks a lot.
radchess5 years ago
I agree she is hot!
gnargnar5 years ago
what is the foam? you say floor mat but i don't know what you mean by that. thanks
benjaminmailloux (author)  gnargnar5 years ago
Well, one of the pads i did differently, and that was with mouse-pad material. ideally, this was the best. but the foam i used was what i found that was closest to it. pretty firm, so that you don't even notice the time it takes to bounce back flat when you hit it. It was just some sort or floor mat from target. Also, i completely forgot to take pictures of the rack and the complete set-up, but i"ll try to take some and post them this week.
gnargnar5 years ago
also! i'd like to see your kit all put together. perhaps a video of the skills...?
codester5 years ago
Nice work.
This is the best, most solid DIY drum sensor I've ever seen. with the peizo and the sheet metal it will work just as well as any store bought one. and your sister is cute.
benjaminmailloux (author)  johnson_steve5 years ago
Thanks. I thought the same thing about any other designs on here or other sites. This was cheap, and it triggers great!