partforge

Filleted tray

easy tier · create

The request

Make a shallow parts tray, open at the top: 80mm long, 60mm wide, 15mm tall overall, with 3mm walls and a 3mm floor. Round the edges around the top rim with a 2mm fillet, and chamfer the bottom edge where the tray meets the build plate by 1.5mm. Model it as a single sub-part named `tray`.

What the AI judge checks

  • The edges around the top rim are visibly rounded rather than sharp
  • That rounding runs all the way around the rim at a consistent radius, not on some edges only
  • A small bevel where the outside wall meets the bottom face, running continuously around it
  • The bottom face is flat, so the tray would sit level on a table
  • The walls, floor and cavity are clean and flat, with no ripples, steps or stray geometry

Measured checks

  • watertight (gate)
  • 80x60x15 outer envelope
  • hollow tray, not a solid block
  • has real wall material

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