I built HeeksCAD and HeeksCNC in Ubuntu 8.04 and everything went perfect! I've imported my mesh (.STL) and clicked the ZigZag button to add the operation.
If I click the click the 'create python program' button I get the listing in the Program window. Then when I click the 'Go' button I get an error pop-up saying 'error reading end tag'
I created the file and it cleared the error but now read 'ImportError: No module named pycam.Geometry' in the console window.
Have I missed an essential step?
Great project, by the way. Keep up the good work.