Engine Piston

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Bounding box: 80.1 × 80.1 × 60.0 mm
Engine: Precision B-rep
Parameters: 16
Published: October 26, 2026

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Piston design

Parameters

Name	Value	Range
Piston (bore) diameter	80 mm	30 – 150
Overall height	60 mm	30 – 150
Compression height (crown to pin)	40 mm	15 – 70
Crown / ring-belt thickness	22 mm	6 – 50
Skirt wall thickness	6 mm	2.5 – 20
Ring groove count	3 pcs	1 – 5
Groove width	2 mm	0.8 – 6
Groove depth	3.5 mm	1 – 10
Groove pitch	6 mm	3 – 20
Top groove below crown	6 mm	2 – 30
Wrist-pin bore diameter	20 mm	6 – 50
Pin boss diameter	30 mm	12 – 60
Pin boss length (from wall)	18 mm	4 – 40
Crown dish diameter	60 mm	10 – 140
Crown dish depth	2 mm	0.5 – 10
Crown edge chamfer	1 mm	0.2 – 4

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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