Asi openscad-bci-hardware

Parametric OpenSCAD models for BCI electrode holders, paste adapters, headset hooks, pogo combs, fNIRS housings, and eurorack frames. Use when designing, modifying, or 3D-printing brain-computer interface hardware.

install

source · Clone the upstream repo

git clone https://github.com/plurigrid/asi

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/plurigrid/asi "$T" && mkdir -p ~/.claude/skills && cp -r "$T/plugins/asi/skills/openscad-bci-hardware" ~/.claude/skills/plurigrid-asi-openscad-bci-hardware && rm -rf "$T"

manifest: plugins/asi/skills/openscad-bci-hardware/SKILL.md

source content

OpenSCAD BCI Hardware

Parametric 3D models for brain-computer interface and neuromodulation hardware.

Assets Index

Model	File	Purpose
Electrode Holder Mod	`electrode_holder_mod.scad`	Modified EEG electrode holder for dry/wet electrodes
Paste Adapter	`paste_adapter.scad`	Conductive paste application adapter for wet EEG
Headset Hook	`headset_hook.scad`	Mounting hook for BCI headset suspension
C3/C4 Pogo Comb	`c3c4_pogo_comb.scad`	Spring-loaded pogo pin electrode comb for motor cortex (C3/C4 10-20 system)
fNIRS ECU Housing	`ecu_housing_base.stl` + `ecu_housing_lid.stl`	OpenNIRScap electronics enclosure
fNIRS Sensor Capsule	`sensor_capsule.stl`	Light source/detector capsule for fNIRS optodes
Electrode Plate 8-up	`electrode_plate_8up.stl`	8-position electrode array plate
Eurorack Frame	`frame-rail.stl` , `frame-connector.stl` , `frame-stand.stl`	Moduleur eurorack housing for BCI signal chain

Usage

# Render STL from SCAD
openscad -o output.stl -D 'electrode_diameter=10' electrode_holder_mod.scad

# Batch render all SCAD files
for f in *.scad; do openscad -o "${f%.scad}.stl" "$f"; done

Design Constraints

All models parametric (electrode diameter, spacing, head circumference)
Print orientation: flat side down, no supports needed for most parts
Material: PETG recommended for skin contact (autoclavable)
Tolerances: 0.2mm for press-fit, 0.4mm for sliding fit

Integration

Pairs with
```
zig-syrup-bci
```
for signal acquisition firmware
Pairs with
```
opennirscap-build
```
for fNIRS cap assembly
Pairs with
```
cyton-dongle
```
for OpenBCI Cyton/Daisy connection