Ergopad → Ergogen converter

Saved layouts

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1 · Ergopad data

Left hand (raw JSON)

Right hand (raw JSON, optional)

If one hand is missing Scale (px per mm)

Ergopad uses 5 px/mm unless you changed Tune scale. If you did, enter the same value here. Its raw export is in CSS pixels, so this setting controls the real-world size.

2 · Keys

Switches Sockets Key pitch X / Y (mm) Keycap size X / Y (mm, for overlap checks) Extra rows above (all columns) Thumb keys (per hand; sizes in section 5) Overlap check / Ergogen key size Home key position Diode offset below switch (mm)

3 · Electronics

Microcontroller Reset button Board offset inward / up (mm) Board tilt (°, + = top leans toward thumb)

4 · PCB outline

Margin around keys (mm) Corner fillet (mm) Outline concavity (mm, low = hugs keys) Gap between halves (preview / KLE, mm) PCB file format

Concavity is in mm: any outline edge longer than this is pulled in toward the keys. 200 or more gives a plain convex shape; 20–50 follows the columns and thumb cluster closely. The preview shows the exact outline sent to Ergogen, minus the corner fillet.

5 · Column adjustments

“Inward” points toward the thumb or the middle of the keyboard. “Tilt” rotates a column so its top leans inward. Leave “extra rows” empty to use the global value.

Preview

taps fitted lines matrix labels outline

Output

Open ergogen.xyz ↗

Paste into ergogen.xyz or run npx ergogen . next to config.yaml. You get pcbs/left.kicad_pcb and pcbs/right.kicad_pcb with footprints placed and nets assigned. The traces still need routing in KiCad (by hand or with Freerouting).