OK, noticed several times my machine moving very slowly from the toolchange Z position to the initial plunge. Looks like it’s just contour path that doesn’t rapid to the clearance plane before plunging.
All other paths…
(Move to safe Z to avoid workholding)
G53G0Z-0.197
(TOOL/MILL,0.001, 0.000, 0.394, 45.00)
M6T301
M03S22000
(PREPOSITION FOR RAPID PLUNGE)
G0X-4.0000Y-2.2587 (Rapid XY over start point)
Z0.5000 (Rapid Z to clearance plane)
G1Z0.0000F15.0 (Plunge feedrate to cutting depth)
Whereas, Contour paths…
(PREPOSITION FOR RAPID PLUNGE)
G0X-4.2800Y-2.5246 (Rapid to XY start point)
G1Z-0.1000F15.0 (Plunge feedrate all the way down)
CC743 Post: Carbide 3D Shapeokoj
Happens with all 4 posts, so must be in the toolpath.