>        I've been playing with HeeksCAD/HeeksCNC. I'm quite new to machining, 
> cad/cam etc, so I
> can't comment on how it compares to other packages. I run it under Ubuntu. It 
> works under
> windows as well. See http://code.google.com/p/heekscad/

slightly OT, but anyway:
everyone who feels confident in c++ and/or computational geometry or
is willing to learn, I have a project where the goal is to create a
CAM-library for toolpath calculations:
http://code.google.com/p/opencamlib/

Some things to work on:
- documentation/examples
- finish push-cutter (radial tool projection of a cone-shape)
- add line and arc generators to the voronoi-diagram algorithm. this
leads to a fast and robust 2D offset algorithm. (something the
librecad project could be interested in also?)
- construction of cutter-location surfaces/meshes. various slicing,
cutting, and filtering operations on this surface then leads to more
advanced toolpath strategies than the simple "zigzag" and "waterline"
which are in prototype-stage right now.
- cutting simulation. the bare-bones are sort of there but integration
with an OpenGL environment of choice as well as interfacing with the
emc2 interpreter is missing.

Anders

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