Pedal Builder Toolkit

For people who build guitar effects pedals: drilling templates, bench calculators, parts lists, stock and a build log in one app.

What's on the bench

Drilling templates for common diecast enclosure sizes, printed 1:1 across pages with check rulers, or exported as SVG for CNC and laser
Layout check for holes too close to edges or each other, and parts that collide inside the box
Hole sizes you can overwrite with your own measurements, and a drill chart with nearest-bit lookup
LED resistor, voltage divider, RC filter, op-amp gain, Ohm's law, colour codes and wire gauge
Power budget per supply output, battery life estimate and the DC jack polarity convention
Parts lists with batch totals and CSV import/export, stock with shortfalls and order lists
Package pinouts, 3PDT true-bypass wiring and a tone generator for bench tests
A build log with photos, dates, serial numbers and test notes

Soldering irons reach several hundred °C. Use a stand, keep the work area ventilated, and use fume extraction.
Lead solder: wash your hands after soldering and keep food and drink away from the bench.
Drilling metal: wear eye protection, clamp the enclosure, and deburr the edges.
Pedals run on low-voltage DC. Do not build or modify mains (AC) power supplies. Use certified commercial supplies only.
Check voltage and polarity before connecting. Wrong polarity or voltage can damage pedals.
Values and hole sizes are references. Check them against the datasheets and the parts in hand. No warranty of fitness.

Questions, bug reports and feature requests: holmes@nerdalchemy.com