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Sand table v2: printable design, STLs and notes

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12" polar kinetic sand table (motor-on-arm mechanism with slip ring).
- SolidCraft design + STEP assembly
- 25 print-ready STLs for a Bambu P1S, fits set from the fit-test coupon
  (shaft 8.1 mm, 608 pocket 22.2 mm)
- design notes: mechanism, dimensions, BOM, hardware, print orientation

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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ckochandClaude Opus 5.5 committed 2026-10-22 12:08:52 -04:00
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README.md
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# sandTable
A 12" kinetic sand table that draws patterns in sand. A steel ball rolls under glass, pulled by a magnet on a polar arm underneath. The case is about 12.5" across and 5" tall. The parts are 3D-printed for a Bambu P1S and designed in SolidCraft.
- `sand-table-v2.solidcraft`: the printable design. Bodies named `REF_*` are bought parts, modeled for fit only.
- `sand-table-v2-assembly.step`: the full assembly, for viewing in any CAD tool.
- `print/`: STL files for every printed part, numbered in print order. Print `00-fit-test-coupon` first.
- `design-notes.md`: how it works, dimensions, parts to buy, hardware list and print settings.
- `sand-table-v1.solidcraft`, `mechanism-mockups.solidcraft`: earlier layout and mechanism studies.