Start here
Most Eurorack DIY writing assumes you already have a bench, a case, and a way to power a circuit. Getting to that point is its own project, and the answers are scattered across forum threads from a decade ago.
This is the map. Posts appear here as they are written, each one from the bench while the thing is actually being done.
Planned
Nothing here is published yet. The list is the plan, roughly in the order a person new to this would want it.
Power
- Building a bench supply from linear regulators
- Breadboarding ±12 V from battery packs
- Case power with a uZeus, and budgeting current
- Why modules need bipolar rails
Case
- Building a wooden case with Gator rails
- Rail spacing and HP arithmetic
- Threaded strips against sliding nuts
Bench
- The minimum soldering kit that actually works
- Choosing an oscilloscope, and what cheap ones get wrong
- Multimeters and bench supplies
- Getting module audio into a computer at the right level
First circuits
- What an op-amp is, and why TL074s are everywhere
- Reading a Eurorack schematic
- The power header, its pinout, and the red stripe
KiCad
- Drawing a panel: outline, drill holes, HP grid
- Footprints for jacks, pots, and encoders
- Checks worth running before you order boards
- Sending files to a fab house
Firmware
- Starting on STM32 without a framework in the way
- Timers, output compare, and precise event scheduling
- Getting clean CV out: why 12 bits is not enough
Worth reading elsewhere
Some of this ground is already covered well by other people.
- Moritz Klein explains circuits rather than presenting them, which is rarer than it should be.
- Eddy Bergman has a long numbered build series covering an enormous amount of ground.
- Tomais Thorpe on learning PCB design specifically for Eurorack.
- Designing Analog Chips by Hans Camenzind, free, and the best explanation of what is happening inside the parts you are using.
- Mutable Instruments released its designs openly; they are worth reading as reference.