What is VARKON?
Varkon is a very powerful parametric 2D/3D CAD, modeling and application development tool for engineering, design, architecture, etc. It does 2D drafting, 2D and 3D modeling, sculptured surface modeling, and even animations.
Varkon is a free CAD system and high level development tool for Engineering, Computer Aided Design and Product Modeling applications.
The project seems no longer developed. Last version, 1.19E, released in November 2012, can be still downloaded from SourceForge.