MakeCrank

Produce crankshaft arms to exact specifications using a leather cutter or 3D printer.

This tool calculates measurements based on your inputs and creates SVG (2D) or STL (3D) files for the crank arm.

The resulting designs are ready for display and sharing across various applications.

Automatically computes the required balance weight size.

Using the outer diameter of the balance weight, the mass (grams) on the crank pin side, and the crank arm material's density (grams per cubic centimeter)

to determine the counterweight dimensions needed 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)

The output files integrate seamlessly with compatible applications,

enabling easy transfer to 3D printers and connected devices.

The square below provides scale comparison using a standard credit card.

What's New in the Latest Version 0.5

Last updated on Oct 9, 2022

Version 0.5
・Established minimum density limit for balance weight calculations
Version 0.4
・Enhanced parameter restrictions
Version 0.3
・Introduced D-cut compatibility
・Added automatic balance weight dimension calculation
Version 0.2
・Implemented balance weight support
・Integrated circular design capability
Version 0.1
Initial release

MakeCrank Screenshots