This is the X reference axis of the body of tri_mount_interface that I dragged into the elements group (I noticed in your 1st sketch that the centers of the two holes were on this axis) :
Thanks, just know it and it's easy to fix with Flip element or Flip part.realthunder wrote: ↑Mon Nov 09, 2020 11:11 amThis is hard problem. The face/wire orientation can't really be trusted with OCC the CAD kernel. It sometimes just decide to flip the orientation for whatever reason.