Mechanical parts
Inline-4 Crankshaft with Cylinder and Piston
- Bounding box
- 190 × 37 × 96 mm
- Engine
- 3D Printing B-rep
- Parameters
- 26
- Published
- November 3, 2026
Download
Free to download and use. See the terms.
The prompt
make a cylinder and piston connected to crankshaft
Parameters
| Name | Value | Range |
|---|---|---|
| Main bearing journal diameter | 18 mm | 10 – 40 |
| Main bearing journal length | 14 mm | 6 – 40 |
| Crankpin (connecting rod) diameter | 14 mm | 8 – 35 |
| Crankpin length | 12 mm | 5 – 40 |
| Stroke = 2 x crank radius | 28 mm | 10 – 70 |
| Web / cheek thickness | 6 mm | 3 – 15 |
| Counterweight radius | 23 mm | 12 – 45 |
| Front nose (snout) diameter | 14 mm | 6 – 30 |
| Front nose length | 16 mm | 0 – 40 |
| Flywheel flange diameter | 36 mm | 15 – 80 |
| Flywheel flange thickness | 8 mm | 3 – 20 |
| Flange bolt hole diameter | 4.5 mm | 2 – 10 |
| Flange pilot bore diameter | 14 mm | 0 – 30 |
| Piston diameter | 24 mm | 12 – 60 |
| Piston height | 24 mm | 10 – 60 |
| Piston skirt wall thickness | 2.5 mm | 1.2 – 6 |
| Wrist pin diameter | 8 mm | 4 – 20 |
| Connecting rod length, centre to centre | 55 mm | 30 – 120 |
| Connecting rod thickness | 8 mm | 3 – 16 |
| Big end outside diameter | 22 mm | 12 – 50 |
| Small end outside diameter | 16 mm | 10 – 40 |
| Cylinder wall thickness | 3.5 mm | 1.2 – 10 |
| Piston to bore clearance per side | 0.25 mm | 0.1 – 0.6 |
| Number of cooling fins | 5 mm | 0 – 12 |
| Cooling fin diameter | 37 mm | 0 – 80 |
| Cooling fin thickness | 2 mm | 1.2 – 6 |
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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