Tuesday, October 11, 2011

Monday, September 19, 2011

More Solenoids

I've got some fun projects in the works, but for now here are some more solenoid pictures. I've progressed since the last post: now I've got the whole assembly put in an aluminum framework and striking a frame drum in the middle of the framework. I'm just running tests on it now, trying to linearize the input values and whatnot.

Friday, September 2, 2011


I've been working on some tests involving solenoids (with the eventual plan to use these in kinetic scupture). I've designed and laser cut out an all-acrylic beater design which converts the linear motion of a solenoid actuator to rotary motion for striking a drum. Anyway, here are a couple of pictures of the beater and some tests I'm running on it.

Sunday, June 19, 2011


I'm doing grad school in New Zealand now. Just thought I'd mention that.
Also, I have a bunch of pretty interesting projects in the works (lots of servo and control-theory related things). Keep an eye on this blog, and I'll post info as I make progress.

Sunday, May 8, 2011


Lots of people still have FTDI Arduinos kicking around. I know I do (several older Megas, for example). I know you could make use of the awesome HIDUINO project for all of your MIDI Arduino needs if you're using a newer 8U2-equipped Arduino. If you're not, though, I'm working on the software pictured above to allow for full MIDI to CV control of analog synths. Included is full CC capability and a built-in ADSR.
This program works by reading incoming MIDI data (from something like Ableton, Reaktor, ChucK, Max, etc.) and converting it to serial. I read midi data with the venerable RWMidi library and send it out over USB using processing's serial library. I then read the data on an FTDI-equipped (or unmodified 8U2-equipped) Arduino and convert the data to control voltage values using awesome AVR firmware developed by Martijn Zwartjes. Works well, sounds great.

Friday, April 22, 2011

State Variable Filter

I'm putting a 1V/Oct state variable filter (designed by Martijn Zwartjes) onto a PCB (click the image above for a larger version). Eventually I'd like to also add a VCO and a VCA to the PCB, creating a partial analog synth voice on something only about twice the size of a business card. The board is set up to work with +/-12V Eurorack power: eventually I want to make it into a Eurorack compatible module.

Saturday, April 2, 2011

New EP: Rio Puerco

The kind folks at Khalija Records just released an EP of mine. Check it out here.

Sunday, March 13, 2011

Chime part II

Another picture of Chime (click for full size)- I've completed two of the sculptures so far, and would ultimately like to have 6+ for hanging in a gallery space.

Sunday, March 6, 2011


Some pictures of a motorized chime that I've been working on. The speed of the motor responds to user input data.

Saturday, February 19, 2011


You can't get much more minimal than the circuit in the above pictures and still have a reasonably well-tracking 1V/oct VCO. The top picture shows two oscillators hooked up in an FM setup. Martijn Zwartjes and I are using this circuit as a teaching tool in an analog musical circuits class at CalArts (well-- it's mostly Martijn: I'm tagging along and learning everything I can).