Create custom-sized crank arms using a leather cutter or 3D printer

Generates 2D SVG or 3D STL crank arm files based on your specified parameters.

Export and share the generated designs with other applications.

Automatically calculates the required balance weight size.

Determines the balanced weight dimensions using the balance weight's outer diameter, the mass (g) on the crank pin side, and the crank arm's density (g/cm³)

Computes the proper weight size to achieve optimal balance.

Parameters

・ Crankshaft diameter (mm)

・ Crank pin diameter (mm)

・ Crank arm length (mm)

・ Crank arm width (mm)

・ Balance weight radius (mm)

・ Thickness (mm)

View generated designs directly within the application

Share files with connected 3D printers and computers

The square below shows a credit card for scale comparison

What's New in Version 0.5

Last updated on Oct 9, 2022

0.5
・ Set minimum density for balance weight calculation
0.4
・ Added parameter restrictions
0.3
・ Added D-cut support
・ Implemented automatic balance weight size calculation
0.2
・ Added balance weight compatibility
・ Added circular shape support
0.1
Initial release