Stepped Mechanical Base

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Bounding box: 110.0 × 60.2 × 54.9 mm
Engine: Precision B-rep
Parameters: 14
Published: September 30, 2026

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The prompt

"Create a 3D CAD model of a symmetric mechanical base part. Overall dimensions: length 110mm, width 60mm, max height 80mm. Left side is a lower shelf with height 30mm and length 35mm, featuring a vertical through-hole of diameter 30mm centered at 35mm from the left edge. Left edge corners have 5x45 degree chamfers. Right side steps up to a height of 50mm (80mm total). The rightmost end narrows to a width of 30mm for a length of 20mm. On top of the right higher section, there is a vertical cylinder boss with a diameter of 20mm and a height of 30mm. Output as clean vector geometry or STEP file.

Parameters

Name	Value	Range
Overall Length	110 mm	80 – 150
Overall Width	60 mm	40 – 100
Left Shelf Height	30 mm	10 – 50
Left Shelf Length	35 mm	20 – 60
Through Hole Diameter	30 mm	10 – 50
Hole Center from Left Edge	35 mm	10 – 60
Right Step Height	50 mm	30 – 70
Rightmost Narrowed Width	30 mm	10 – 60
Rightmost Narrowed Length	20 mm	10 – 50
Boss Diameter	20 mm	5 – 40
Boss Height	30 mm	10 – 50
Chamfer Size	5 mm	0 – 10
Boss Center X	72.5 mm	40 – 100
Boss Center Y	0 mm	-30 – 30

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

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