Working making a 3D Printed MIDI Drum Controller DIY Project
Similar to the commercial units available via Akai, M-Audio, Native Instruments.
Update: I got accepted to present at World’s Maker Fair NYC and then made a mad sprint to finish this project, the parts I used are different and the 3D printed files changed. I finished a new 3D printed enclosure that is wired by hand and produced a laser cut acrylic enclosure for this that has a PCB designed. More information will be forthcoming, please email me at firstname.lastname@example.org to get on a mailing list for updates. My apologies for not having all the information readily available.
Above pictured is the bezel with pads.
3D Printed faceplate aka bezel
The sensor pads, faceplate, acrylic underlay and rubber finger drum pads courtesy of MPCStuff.com
The trick here is the Flat Flex Connector to interface with the sensor pads.ADAFRUIT PN: 1325 Adapter works for this
Resistor Array voltage divider. Put 5V on the common bus of the sensor pads, the individual outputs you wire to two things, a resistor array that has a common bus tied to ground, and the analog input of your microcontroller, in this case it will be an Arduino Leonardo. Pictures of a schematic will be forthcoming.
The rubber drum pad can be found here:
The FSR Sensor interface can be found here:
The STL 3D CAD File can be found here: