Jerry
43 lines
2.0 KiB
Markdown
43 lines
2.0 KiB
Markdown
# 3. L-Bracket With Gussets and Two Hole Directions
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## Prompt
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Create a single solid L-bracket STEP model in millimeters.
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The bracket has a horizontal base plate 80 mm long in X, 50 mm wide in Y, and 8 mm thick in Z. Center the base plate on the XY origin, with its bottom at Z = 0.
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Add a vertical back plate along the rear long edge of the base. The back plate is 80 mm long in X, 8 mm thick in Y, and 50 mm tall in Z, rising from the top of the base plate. The back plate should sit along the rear edge at positive Y.
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Add two vertical through-holes in the base plate, each 6 mm in diameter, located at X = +/-25 mm and Y = -10 mm.
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Add two horizontal through-holes in the vertical plate, each 6 mm in diameter, located at X = +/-25 mm and Z = 30 mm, passing through the 8 mm thickness of the vertical plate.
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Add two triangular gussets, each 8 mm thick in X, located at X = +/-20 mm. Each gusset should connect the base plate to the back plate with a right-triangle side profile 30 mm tall and 30 mm deep.
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Add 2 mm fillets to the outside corner where the base and back plate meet.
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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 fused watertight solid |
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| Base dimensions | 80 x 50 x 8 mm |
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| Back plate dimensions | 80 x 8 x 50 mm |
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| Back plate placement | Along positive-Y rear edge of base |
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| Base hole count | Two |
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| Base hole geometry | 6 mm diameter vertical through-holes |
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| Base hole locations | X = +/-25 mm, Y = -10 mm |
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| Back hole count | Two |
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| Back hole geometry | 6 mm diameter horizontal through-holes through Y thickness |
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| Back hole locations | X = +/-25 mm, Z = 30 mm |
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| Gusset count | Two |
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| Gusset geometry | Right-triangle side profile, approximately 30 x 30 mm |
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| Gusset placement | At X = +/-20 mm |
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| Fillets | 2 mm fillets at base/back outside transition |
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| Negative check | No floating gussets; no unfused plates; holes must actually cut through |
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