Nema17 face mount
hard tier · create
The request
Make a face-mount plate for a NEMA 17 stepper motor. A 60 mm square plate, 5 mm thick, lying flat in the XY plane and centred on the origin with Z up. Cut a 22.4 mm through-hole at the centre for the motor's pilot boss, and four 3.4 mm through-holes on the motor's 31 mm square bolt pattern, at X = ±15.5 and Y = ±15.5. Name the sub-part exactly `plate`.
What the AI judge checks
- A flat square plate of uniform thickness
- One large round hole at the centre of the plate
- Four small round holes arranged on a square around the centre hole
- The four holes are symmetric about both centre lines of the plate
- Nothing on the plate beyond the five holes
Measured checks
- one sub-part named plate (gate)
- plate is 60 × 60 × 5
- pilot bore is 22.4 mm
- bolt hole at (15.5, 15.5) is 3.4 mm (gate)
- bolt hole at (15.5, -15.5) is 3.4 mm (gate)
- bolt hole at (-15.5, 15.5) is 3.4 mm (gate)
- bolt hole at (-15.5, -15.5) is 3.4 mm (gate)
Ranked by hand
One reviewer put one attempt from each model in order, best first, ties left tied.
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