rattleCAD 4.0 supports your design and build process of bespoked bicycles and bicycle frames with a fully parametric bicycle model and resulting workshop drawings.
rattleCAD 4.0 - Demo is a free of charge version of rattleCAD. The Demo-Version shall give you an impression about the features rattleCAD provides. This version shows a DEMO-Version stamp on some views and does not allow to export any graphics. If you just want to take a look at rattleCAD or if you want to deal with frame geometries, or just want to draw bikes, then you are right with rattleCAD 4.0 - Demo.
rattleCAD 4.0 for MacOS is tested with macOS Mojave.