33 lines
1.3 KiB
Markdown
33 lines
1.3 KiB
Markdown
# 2. Circular Flange With Bolt-Hole Pattern
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## Prompt
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Create a single solid circular flange as a STEP model in millimeters. The flange is a cylinder with an outside diameter of 80 mm and a thickness of 10 mm. Its axis is vertical along Z, with the bottom face at Z = 0 and the center at X = 0, Y = 0.
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Add a central vertical through-bore with diameter 30 mm.
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Add six equally spaced vertical through-holes, each 6 mm in diameter, on a 60 mm bolt-circle diameter.
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Add a 1.5 mm fillet to the top and bottom outside circular edges.
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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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| Outer diameter | 80 mm |
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| Thickness | 10 mm |
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| Central bore | Diameter 30 mm vertical through-hole |
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| Coaxiality | Central bore coaxial with flange outer cylinder |
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| Bolt-hole count | Six |
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| Bolt-hole diameter | 6 mm each |
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| Bolt circle | Hole centers lie on 60 mm diameter circle |
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| Angular spacing | 60 degrees between adjacent bolt holes |
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| Fillets | 1.5 mm fillets on top and bottom outside circular edges |
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| Negative check | No missing bolt holes; no misplaced non-circular holes; no extra patterns |
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