30 lines
1.1 KiB
Markdown
30 lines
1.1 KiB
Markdown
# 1. Rectangular Calibration Block With Four Holes
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## Prompt
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Create a single solid STEP model in millimeters. The part is a rectangular block, 100 mm long in X, 60 mm wide in Y, and 20 mm tall in Z. Center the block on the XY origin, with the bottom face at Z = 0.
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Add four vertical through-holes, each 8 mm in diameter, located at X = +/-35 mm and Y = +/-20 mm.
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Add a 2 mm chamfer to the top perimeter edges only. Do not chamfer the holes.
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Export as a STEP file.
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## Test Cases
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| Test | Expected result |
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| --- | --- |
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| STEP import | File imports successfully |
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| Solid count | Exactly one watertight solid |
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| Bounding box | 100 x 60 x 20 mm |
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| Block placement | Centered on XY origin; bottom at Z = 0 |
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| Hole count | Four through-holes |
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| Hole diameter | 8 mm each |
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| Hole axes | Parallel to Z |
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| Hole locations | X = +/-35 mm, Y = +/-20 mm |
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| Hole depth | Fully through the 20 mm block |
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| Chamfer | 2 mm chamfer on top outer perimeter only |
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| Negative check | No chamfers on holes; no extra bosses, slots, text, or decorative geometry |
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