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joshuas
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Last Activity: 03-19-19, 03:27 PM
Joined: 03-06-19
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    Yeah I described how it worked in an earlier post. I might make a video of it at some point....
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    I tried regular thin double sided tape and I tried that white foamy double sided tape. I'm not sure which one I ended up with, sorry. the white foamy tape was nice for the top because you can cut the relief for the piezo wires into it instead of the cone....
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    The teensy can be programmed either as an Arduino, or as a regular micro controller. I chose Arduino, because it was easier to work with, and I assume it'd be just as fast since most of the time I'm just waiting for the ADC to finish sampling. I highly recommend the teensy.

    This is directed...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    I think I'm using 1M resistors, no diode. Yes it supposedly can damage the chip, but so far so good. I've been playing for months at this point. I think I checked out every Arduino/teensy related midi/drum anything I could find when I started, not sure about these specifically though. I couldn't find...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    There's a resistor for each sensor to bring the level down to where the peak is within the teensy's range. I tried adding a diode to stop it from going negative, which is apparently bad for the teensy, but I couldn't get good data doing that. (again, software guy....)



    Yeah...
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    Last edited by joshuas; 03-09-19, 09:56 AM.

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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    I've thought about it. I'm not opposed to releasing the code, but it's such a ball of garbage I'd be embarrassed to right now. ...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    It was just a 1/8 ball nose endmill I had lying around, probably 4 flute. My machine tops out at 7500RPM, but the faster the better I imagine. Feed was probably 20IPM...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    The teensy https://www.pjrc.com/store/teensy32.html has pins that can be put into "touch sense" mode and when a capacitive body like you hand comes near it can detect it. The bigger the plate to be effected by your capacitive field the easier it is to detect. I have all the panels isolated...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    I was going to build wood hoops. I have the stave things cut out I just haven't done it because I've been having fun playing.

    This is a stand alone midi device. I plug my drum module into my computer and I plug this in separately. I never use the sounds in my module, so I don't need...
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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    Here it is all assembled. Thereís a USB port on the bottom. You can see the skew on the tension rods in this picture.


    I used a teensy 3.2 board to provide the midi output and the signal processing on the input. I really like the teensy and it has a capacitive sensing pin, so it seemed...
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    Last edited by joshuas; 03-07-19, 06:56 PM. Reason: Moved images to Imgur, attachments weren't working

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  • joshuas
    replied to Roland PD-140DS inspired build
    in DIY
    I glued up 16 staves of mahogany for the shell and milled them into a shape that would hold all my sensors and electronics and had a nice edge for the drum head.







    I made plates for the bottom and middle to hold the sensors. The bat shaped plates...
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    Last edited by joshuas; 03-07-19, 06:55 PM. Reason: Moved images to Imgur, attachments weren't working

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  • joshuas
    started a topic Roland PD-140DS inspired build
    in DIY

    Roland PD-140DS inspired build

    Hi guys. I got a lot of valuable information from your forum in my effort to make a MIDI drum. And for that Iíd like to thank you. I decided to try to clone the Roland PD-140DS because it seemed to have the most software problems to solve, and Iím primarily a software guy. Iím sure my version is missing...
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    Last edited by joshuas; 03-07-19, 06:49 PM. Reason: Moved images to Imgur, attachments weren't working
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