When I put accuracy to max (slider full to the left) I managed to reproduce this slow down: the first part then goes relatively fast and at the end slows down significantly (i.e. like 10 times slower).sliptonic wrote: ↑Thu Sep 13, 2018 3:11 pmUsing the same model at home (AMD FX(tm)-4100 Quad-Core Processor 12GB), I'm seeing this result:
*** Adaptive toolpath processing started...
Tool diam: 6.350000
*** Done. Elapsed: 322.135314 sec
The first 2/3 of the path generate quite fast ~15 seconds. The rest goes very slow. I had htop running and the four CPU cores were bouncing around 17%. Max memory usage for freecad about 30%. System peak memory usage about 6GB of 12GB. Plenty of swap.
I shut down every other application I could and shaved about 10 seconds off the total time.
Since I can reproduce it now I will probably be able to fix it. My initial guess is that it is related to size of the model - paths grow to have a lot of points and then clipping slows down. Solution I have in mind is to introduce bounding boxes and process the model box by box, that would limit clipping to smaller area (of fixed size) and then (in theory) speed should not depend on size of the model.
Thx for the feedback,