Hi Dr @akohlmey, thank you fo your reply.
Here is a comparison between elliptically and diagonally cutting the moment the tool comes in contact with the workpiece.
Elliptical:
diagonal:
I used command velocity for orthogonal/diagonally cutting, and fix move for elliptically cutting.
I guess this is what you meant and I believe this is the root cause as well.
orthogonal tool motion: velocity tool set -1.0 0.0 0.0 sum yes units box
elliptical tool motion:
variable Vx equal …
variable Vy equal …
fix 1 tool move variable NULL NULL NULL v_Vx v_Vy NULL
May I ask for suggestions on what options do I have, in order to realise elliptical motion and also avoiding atoms penetration at the same time?
Thank you very much.