just seeking reassurances.
A typical and simple arc in the XY plane would be something thus. % G21 G00 G40 G54 G90 X0 Y0 Z100 F1000 S1000 M03 G00 X0 Y50 Z10 M08 G01 Z-3 G02 G17 X0 Y-50 I0 J-50 (as G90 is called X & Y are absolute while I understand I & J are incremental) G01 Z10 M09 G00 Z100 M05 X0 Y0 M30 %
now in the YZ plane
% G21 G00 G40 G54 G90 X0 Y0 Z100 F1000 S1000 M03 G00 X50 Y0 Z10 M08 G01 Z-3 G02 G19 Y-50 Z-3 J-50 K0 (as G90 is called Y & Z are absolute. Assuming J & K are incremental is it correct to assume K should = 0. I ask this because using K0 or K-3 the prog appears to still function) G01 G17 Z10 M09 G00 Z100 M05 X0 Y0 M30 %
In both cases a 6mm dia ball nose cutter is producing a concave arced slot.
G code states I J & K can be either absolute or incremental. Is it correct for me to assume that if G90 is called at line 1 then all post lines are absolute or are they.
In short I am trying to understand where I J & K pick up being incremental or absolute.