I am trying to cut this piece with a Nomad. The piece is part of a DXF file that I acquired (Brian Law’s first clock). Pawl.mcf (39.3 KB)
This is not a problem of zeroing Z. The top part of the piece is cut without issues.
With my settings, MeshCAM generates code that breaks the tool in the middle of the job. I can see why with bCNC. There are two sets of toolpath curves and each set has a depth equal to half the stock height. The deeper set is offset with regard to the first (Why?). When the second set is being cut, the tool plunges and then moves horizontally but there is still too much material around it and the tool breaks.
How can I correct this problem? Is it a question of the MeshCAM parameters I’m using? Is it a problem with the DXF files? Or am I missing something obvious?
Note: I scaled the DXF file by a factor of 0.5 before feeding it to MeshCAM.