First of all: Please excuse my not everytime adequate english. I am no native english speaker but I will do my best that you can understand me.
At the moment, I am experimenting with my new CNC mill. My toolchain is as follows:
FreeCAD (on Windows 7) for drawing of the models
pyCAM (on Ubuntu 10.04) for the generation of the G-Code
LinuxCNC (on Ubuntu 10.04) for the execution of the GCode and controlling of the CNC Mill.
My problem is the following: I have a model with a surface which is at Z=0. This surface is surrounded by another surface at z=-3. In the higher surface is a text which is cut out. My problem is, that PyCAM generates the higher surface not as plain but only as fram.
I checked that it is PyCAM which causes the problem as I imported the .stl-File in another CAD program which displays the drawing correct.
I made some screenshot to help you understanding my problem:
2.) HeeksCAD (controlling the .stl-File)
3.) PyCAM imported stl
4.) PyCAM Screenshot of GCode simulation
I hope I was able to make my problem clear and would be very glad if one of you guys could help me out
Thanks and best regards