Hi, I'm having trouble with tip radius comp in Mach3Turn and I'd really appreciate some help.
Tool table is set with Tool 1 as a normal DCMT tip cutting to the left with a 0.4mm radius, no offsets and "tip direction" is set to 1.
Working in Diameter mode and using R3.042.020.
My G-Code (pls. excuse my comments):
(MT2 Test Taper)
g21 (metric)
g61 (exact stop)
g18 (xz)
g90 (absolute)
g40 (off radius compensation)
g95 (mm per revolution feed mode)
T0101 M06 (Select Tool 1 data and do a tool change)
M03 S1000 (Start Spindle at 1000rpm)
G0 x0 Z3.0 (move to safe position)
G41 (Left tool tip compensation, rad is from the tool table for tool 1)
g1 x0.0 z0.0 F0.1
g1 x8.0 z0.0
x10.0 z-1.0
x10.0 z-10
x12.53 z-10.0
x14.53 z-11.0
x17.78 z-76.065
x17.78 z-78.72
x19.0 z-79.5
x19.0 z-97.0
G40 (off radius compensation)
M05 (Stop Spindle)
M30 (End and Rewind)
If I remove G41, it shows the profile I want in the path display, but it won't cut the right size as the G1 points are the finished article surface.
If I use G41, then I get the attached:
I've tried changing abs and inc IJ mode with no effect. Did I miss something? Any ideas?
Also, is there information anywhere on "tip direction", I can't find that.
Just got spindle feedback and threading working a treat (mesmerising) but this G41/42 has me stumped.
Final point, why do I get the jagged edges in the tool path display of the work piece? Is there a setting for this?
Thanks very much for your help.
Richard.