hey guys, having trouble with peck tapping from mastercam on a mazak 510c II.

i am able to do this just fine through mazatrol but when i attempt it through mastercam i can not get it to work. the machine goes through the motions with the code below. feeds down with clockwise spindle rotation reverses direction and spindle and it goes deeper each time. however, it drops far to deep for a given ration. ie, it turns about 1/4 revolution and drops way more than 1/4 thread. any thoughts? see something in my code that is wrong or missing?

any help is appreciated.




O0001
(MATERIAL - ALUMINUM INCH - 2024)
( T2 | NO. 10-32 TAPRH | H2 )
N100 G20
N102 G0 G17 G40 G49 G80 G90
N104 T2 M6
N106 G0 G90 G54 X.3635 Y-.5 S100 M3
N108 G43 H2 Z.1
N110 G94
N112 G99 G84 Z-.8 Q-.03125 R.1 F3.125
N114 X-2.3865
N116 X-1.6365 Y-8.75
N118 X-.3865
N120 G80
N122 G94
N124 M5
N126 G91 G28 Z0.
N128 G28 X0. Y0.
N130 M30
%