rattleCAD is a graphical tool to design a bicycle(s) geometry and derive drawings from its configuration, supports bespoked bicycle frame builders with a fully parametric bicycle model inside. Its kernel uses saddle and handlebar position as its main references.

Features:
1. Parametric Design
2. Tube Miter
3. Drawing Export Formats
4. Mockup
5. RearMockup
6. FrameJig Support

This software is written in Tcl/Tk. To run it your Operating System has to provide the required Tcl/Tk environment.

The license of this software is Free, you can free download and free use this cad software.