MakeCrank

Create crank arms to your exact specifications using a leather cutter or a 3D printer.

Based on the values you enter, this tool generates an SVG (2D) or STL (3D) model of the crank arm.

The generated file can be viewed and shared with other applications.

Automatically calculates the required balance weight size.

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

it determines the appropriate counterweight size for proper balance.

Parameters

・ Crankshaft diameter (mm)

・ Crank pin diameter (mm)

・ Crank arm length (mm)

・ Crank arm width (mm)

・ Balance weight radius (mm)

・ Thickness (mm)

View the generated data directly within the connected application,

and share it with 3D printers or other connected computers.

The square below is a credit card included for scale reference.

What's New in the Latest Version 0.5

Last updated on Oct 9, 2022

0.5
・Set a minimum density value for balance weight calculations.
0.4
・Added parameter restrictions.
0.3
・Added support for D-cut.
・Implemented automatic balance weight size calculation.
0.2
・Added balance weight functionality.
・Added support for circular shapes.
0.1
Initial release.

Screenshot