Compass Studio

A browser version of the 2025 student-built Moral Compass generator (Customized compass generator.py, CadQuery) for the WRIT 340 Moral Compass project and the Baum Family Maker Space. Type a name and four values; get a print-ready MMU bed for PrusaSlicer. No Python install, about 0.4 s per compass instead of 15 s to 2 min.

Live

https://shopnerd.github.io/compass-studio/ (GitHub Pages from main; pushing to main updates it in about a minute).

Run it locally

cd "H:/My Drive/Baum Family Maker Space/WebDev_4_BFMS/compass-studio"
python -m http.server 8811 --bind 127.0.0.1

Open http://127.0.0.1:8811. It needs a server (module worker + WebAssembly); it does not run from a double-clicked file or inside a claude.ai artifact.

What it makes

• The 2025 compass, rebuilt from the 2025 numbers: Ø75 × 7.6 mm, keyring loop, values in the raised ring (radius 33, 8.2 mm, longest two N/S), gold rose 1 mm under the centre, SC logo + name on the back, 695ZZ bearing pocket (r 6.51, 4 mm, 0.2 mm relief under the inner ring, 1.2 mm solid wall round it; the back logo is only 0.4 deep under the pocket so the floor never opens into it — fixed 2026-10-28, the test checks both), spinning needle (50 mm, pin Ø5.2 × 3.8), Ø10.4 × 0.4 mm NFC sticker recess.
• New: the white centre behind the rose is part of the model (the 2025 workflow paints it by hand in the slicer); words share the ring and shrink only when they would touch; size slider; USC Makers seal (2024) as an alternative back; NFC tag sealed inside with the pause height given; the light needle for a persistence-of-vision spinner (CR1220 slides into the hub, five pre-wired 0603 LEDs under 1.1 mm face windows, 6.4 × 9.4 mm controller pocket in the tail, wire grooves underneath; the test checks it is one piece and that the cell, LEDs and board fit).
• Bed packing for the Prusa MK4S / Core One + MMU3 and the XL: loops interlock between rows, the wipe tower is placed where it costs the fewest compasses, needles fill the gaps. 6 per MK4S bed at Ø75.
• Exports: full bed 3MF (each colour already on its MMU slot), one compass 3MF, STLs per colour, a fitment test plate (the original fitmenttester.py as five bore sizes and five pin sizes), and a whole class from a pasted roster (zip of bed 3MFs + a print sheet CSV).
• Values from ValueCore (2026-10-28). The value boxes search ValueCore's 200 character values (Jubilee Centre categories; used with permission; data/valuecore.js is a snapshot of its /api/values, duplicates removed). Each suggestion shows its category and a dot for how it prints on the model you are on: green prints well, amber the letters shrink, red will not fit (a short form is offered, e.g. Practical Wisdom → Phronesis). The chosen value's definition and examples show under the boxes. Typing anything else still works. The sizes are worked out ahead of time next to typical neighbours; the warnings under the boxes are the real check. 20 of 201 names need the short form on the compass, 21 on the Spin Compass.
• Link in from ValueCore. https://shopnerd.github.io/compass-studio/?values=Integrity,Courage,Empathy,Curiosity&name=Maya opens with those values filled in (ValueCore's spelling; the short form where the full name will not print). Up to 8 values; more than 4 opens the Spin Compass with eight value segments. &model=compass or &model=spin picks the model. The values are read once and taken out of the address bar.

Spin Compass (second model, 2026-10-27)

A handheld fidget-spinner version that is also a game: spin the bottle + truth or dare + Wheel of Fortune. Switch with the buttons at the top of the panel.

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