Need Help!- Z wont retract

[riverracer]

hi, simple problem
the 'z' axis wont retact after this pocketing opp.
was written with VQC, but karnt see that as a problem

T10 M06
G00 G90 G55 X60.017 Y19.991
G43 H10 Z35. M08
S2500 M03
G01 Z0 F1000.
G13 G91 Z-0.5 I2.001 K4.05 Q0.1 L12 D10 F100.
G00 Z35. M09
M05
G28 G91 Z0
G90
M30

basically it's just a bolt head hole
using a 4mm endmill, 4mm pilot hole, offsets set properly
it pockets with no problems, then returns to center and just sits there

F250. has the same problem
but if i increase the feed to F500. , it retracts fine

any ideas?

[extanker59]

I don't know why but maybe it wants a G90 in the retract move after the pocket? Seems like it should just rapid up incrementally 35mm but it's worth a shot.

[haastec]

Originally Posted by riverracer T10 M06 G00 G90 G55 X60.017 Y19.991 G43 H10 Z35. M08 S2500 M03 G01 Z0 F1000. G13 G91 Z-0.5 I2.001 K4.05 Q0.1 L12 D10 F100. G00 Z35. M09 M05 G28 G91 Z0 G90 M30

A similar example in the manual shows a G90 used on the line right after the G13 line.
Ex: G00 G90 Z35. M09

So I would give that a try.