50cc 4-Stroke Engine Assembly

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Bounding box: 360.0 × 155.0 × 294.0 mm
Engine: Precision B-rep
Parameters: 43
Published: November 2, 2026

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The prompt

un motore a scoppio da 50cc a 6 tempi mono cilindrico a 4 marce

Parameters

Name	Value	Range
Block length	200 mm	100 – 300
Block width	150 mm	100 – 200
Block height	100 mm	80 – 150
Cylinder bore	50 mm	40 – 60
Cylinder wall thickness	5 mm	3 – 10
Cylinder height	80 mm	60 – 100
Head length	100 mm	80 – 120
Head width	80 mm	60 – 100
Head height	60 mm	40 – 80
Piston diameter	49.5 mm	40 – 55
Piston height	40 mm	30 – 50
Connecting rod center distance	80 mm	60 – 100
Connecting rod thickness	8 mm	5 – 15
Small end diameter	10 mm	6 – 14
Big end diameter	20 mm	15 – 30
Crankshaft main length	150 mm	120 – 200
Main shaft diameter	20 mm	15 – 30
Crank throw (half stroke)	15 mm	10 – 20
Crankpin diameter	12 mm	8 – 16
Crankpin length	80 mm	60 – 100
Counterweight diameter	40 mm	30 – 50
Counterweight thickness	10 mm	8 – 15
Web thickness	4 mm	2 – 6
Clutch outer diameter	80 mm	60 – 100
Clutch thickness	30 mm	20 – 40
Primary shaft diameter	15 mm	10 – 20
Primary shaft length	150 mm	120 – 200
Secondary shaft diameter	15 mm	10 – 20
Secondary shaft length	180 mm	150 – 220
Shift drum diameter	30 mm	20 – 40
Shift drum length	60 mm	40 – 80
Plug body diameter	10 mm	8 – 14
Plug hex diameter (circumscribed)	16 mm	12 – 20
Plug thread diameter	14 mm	12 – 18
Plug thread length	20 mm	15 – 30
Plug overall height	50 mm	40 – 70
Plug insert depth	20 mm	15 – 30
Piston-to-head clearance	2 mm	1 – 5
Piston pin offset from top	20 mm	15 – 25
Primary shaft Y offset from block edge	35 mm	20 – 50
Primary shaft Z offset from crank	10 mm	-20 – 30
Secondary shaft Z offset from primary	30 mm	20 – 40
Shift drum Z offset from primary	25 mm	15 – 35

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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