I checked out PyCam from the SourceForge git repository (latest commit is 16th of April 2013). I'm running Debian stable/Wheezy, all default python packages with python version 2.7.3. There are 2 issues that I don't know how to fix:
1) The 3D Window does not show the tool during the simulation, even when I check "Show Tool" in the menu. It does show the animated toolpath though.
2) Parallel processing (multi-CPU) is not working. The log window shows "INFO: Enabled 4 parallel local processes". However, when I generate a toolpath, I can see that only 1 of my 4 CPUs has a high load, the others are basically idle.
Could you help me with this?