u/Minimum_Rip6754

Hi everyone, I’m trying to figure out how to do an internal circular or spiral entry with G42.

Right now, my code for a 50mm bore at X0 Y0 looks like this:

X0 Y0

Z-(depth)

G1 G42 D(comp) X-25 Y0

G2 X-25 Y0 I25

G1 G40 X0 Y0

G0 Z(clearance)

The problem is that the perpendicular approach leaves a witness mark on the wall. Does anyone have a better way to handle the lead-in and lead-out to get a cleaner finish?