partforge

Rpi4 tray

hard tier · create

The request

Make a mounting tray for a Raspberry Pi 4. A 65 mm by 56 mm plate, 3 mm thick, lying flat in the XY plane, centred on the origin with Z up and its 65 mm side along X. Four standoffs stand on the top face at the Pi's hole pattern, X = ±29 and Y = ±24.5: each standoff is a 6 mm diameter cylinder 5 mm tall, with a 2.7 mm hole running down through the standoff and the plate. Cut a notch for the USB ports out of the +X edge of the plate: 20 mm wide centred on Y = 0, 6 mm deep into the plate. Name the sub-part exactly `tray`.

What the AI judge checks

  • A flat rectangular plate, longer along one axis than the other
  • Four short round standoffs standing up from the plate near its corners
  • Each standoff has a hole down its centre
  • A rectangular notch cut into the middle of one short edge
  • Nothing else on the plate

Measured checks

  • one sub-part named tray (gate)
  • footprint is 65 × 56 and 8 mm tall with standoffs
  • hole at (29, 24.5) is 2.7 mm through plate and standoff (gate)
  • hole at (29, -24.5) is 2.7 mm through plate and standoff (gate)
  • hole at (-29, 24.5) is 2.7 mm through plate and standoff (gate)
  • hole at (-29, -24.5) is 2.7 mm through plate and standoff (gate)
  • standoff at (29, 24.5) is 6 mm × 5 mm
  • standoff at (29, -24.5) is 6 mm × 5 mm
  • standoff at (-29, 24.5) is 6 mm × 5 mm
  • standoff at (-29, -24.5) is 6 mm × 5 mm
  • USB notch is clear: 20 wide, 6 deep at the +X edge
  • plate is solid beside the notch

Ranked by hand

One reviewer put one attempt from each model in order, best first, ties left tied.

  1. #1 tie
    Gemini 3.8 Flash
    Gemini 3.8 Flash's ranked attempt
  2. #1 tie
    GPT-5.6 Sol
    GPT-5.6 Sol's ranked attempt
  3. #1 tie
    GPT-6 Astra
    GPT-6 Astra's ranked attempt
  4. #1 tie
    Opus 5
    Opus 5's ranked attempt
  5. #1 tie
    Fable 5.1
    Fable 5.1's ranked attempt

Ordering by hand decides Human rank and Human rate on the leaderboard; it never affects Overall or Strict.

Every model's attempts

Run baseline-2026-092026-09-10commit 41aec7daspend $339.70 + $48.02 AI judging, 7 unpricedOther runs: 2026-09-04T20-02-10-stage2-hard-cases, 2026-09-04T19-48-31-screen-14-fixed