SDIY Tips and Tricks RSS

How to get involved in GMSN! Open Source Coding

Or An Introduction to Github. By the end of this tutorial you'll understand how Github works, have setup and account and cloned the GMSN repository. You'll also be able to submit updates back into the master for GMSN! or any other Open Source synth projects. So Github? What's that all about? Github is basically just a collection of text files, with some funky features to assist with collaboration. These text files are what you use to write code. The GMSN! Repository is a collection of Arduino Sketches for the Pure ADSR, Pure Quantiser and Pure Sequencer, all of which are based on the ATMEGA328, the same chip as the Arduino. This means you can use the Arduino IDE programming environment and...

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How to order PCBs

It's incredibly easy to order PCBs from the GMSN! design files. This step by step will guide you through the process of ordering PCBs for the Pure VCA, a great first time module to practice SMD soldering, but also a great utility which will be in every patch you make. 1) Download Eagle: 2) Download the Eagle Schematic and PCB files from GMSN!: 3) Download the GMSN! Eagle CAM Job: 3) Follow this tutorial to create Gerber files using the CAM job above: 4) Zip up Gerbers 5) Go to and use the settings in the screenshot: Note: the size I've put in is for the LFO, VCA, Noise and Sample and Hold. Also it's the same...

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Eurorack Primer

When it comes to electronic instruments there’s not a lot modular synths can’t do. Want to create a classic 303 acid line? Easy! Nice creamy Moog type filter. There’s a module using the exact same circuit. What do you need as a first setup? A simple system would usually have a VCO as the sound source, a VCF to filter the sound, a VCA to shape the volume and some modules to create control voltages, such as a Sequencer, ADSR and LFO.

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