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Prototype #1

A project log for KELPIE: Subtractive Synth for Keyboard Controllers

A portable, cheap, and easy to use, monophonic + polyphonic digital synthesizer for use with a MIDI controller

kenneth-marutKenneth Marut 08/06/2019 at 00:490 Comments

I was able to print the two halves of my enclosure using my resin printer and was really happy with the results. The upper have barely fit in my printer so I had orient it at a pretty steep angle, which led to a lot of support removal during post processing. Here are some photos of the assembled prototype below. I used a transparent white resin (which is actually kind of yellowish) but I'm pretty happy with the effect. I especially like how the red LED diffuses on the enclosure. I'm also pretty satisfied with the diagonal-line texturing on the front and back.

I've also been doing a lot of work on the firmware and have gotten MIDI input to work, and a very barebones monophonic synth working with 2 oscillators. My plan is to expand the device to 6-8 voices. So far I'm really excited how this is coming together and hope to get an MVP done before the 25th of August!

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