Need Help!- C-Axis Surfacing Question

[cnc-king]

need some help on a c axis contour on a daewoo

attached are my cutting parameters and the prog mcx2 posts out, the lathe is running this program at 2.00 ipm and it is taking forever, what do i have set wrong?

rotary axis is set to use the c axis

part of my program

%
O0002
G20
G0G80G40G18G99
G28B0.0(SAFE START)

N2
(TOOL - 2 OFFSET - 2)
( 1/2 FLAT ENDMILL)
( FIN .375 FILLET )
M110
G54 G40
G19
G30 U0. V0.
G30 W0.
M35
G28 H0.
G0 C0.
T0202
G97 S2500 M33
G98
M90
C150.952
M89
G0 X.928 Z-3.4331
G1 X.8838 C156.629 F2000.
X.8842 C156.569
X.8803 C156.459 F1294.1
G0 X.9248 C150.77
X.9541 C147.764
X.954 C392.241
X.9248 C389.25
G1 X.8803 C383.561 F2000.
X.8836 C383.466 F1295.91
X.8832 C383.406 F2000.
X.9068 C382.761 F1254.91
X.9048 C382.449 F2000.
X.9057 Z-3.4338 C382.425 F666.15
X.9093 Z-3.4368 C382.332
X.91 Z-3.4373 C382.316 F596.71
X.9101 C382.33 F2000.
X.911 Z-3.4381 C382.306 F661.49
X.9116 C382.404 F2000.
X.9061 C382.547 F1204.98
X.9073 C382.724 F2000.
X.8937 C383.09 F1238.33
X.8944 C383.209 F2000.
X.8878 C383.392 F1271.64
G0 X.9321 C389.043
X.9398 C389.878
X.8875 C391.837
G1 X.839 C386.026 F2000.
X.8394 C386.074
X.8367 C386.165 F1504.92
G0 X.8853 C391.984
X.9099 C394.376
X.9635 C147.779

[tobyaxis]

Originally Posted by cnc-king need some help on a c axis contour on a daewoo attached are my cutting parameters and the prog mcx2 posts out, the lathe is running this program at 2.00 ipm and it is taking forever, what do i have set wrong? rotary axis is set to use the c axis part of my program % O0002 G20 G0G80G40G18G99 G28B0.0(SAFE START) N2 (TOOL - 2 OFFSET - 2) ( 1/2 FLAT ENDMILL) ( FIN .375 FILLET ) M110 G54 G40 G19 G30 U0. V0. G30 W0. M35 G28 H0. G0 C0. T0202 G97 S2500 M33 G98 M90 C150.952 M89 G0 X.928 Z-3.4331 G1 X.8838 C156.629 F2000. X.8842 C156.569 X.8803 C156.459 F1294.1 G0 X.9248 C150.77 X.9541 C147.764 X.954 C392.241 X.9248 C389.25 G1 X.8803 C383.561 F2000. X.8836 C383.466 F1295.91 X.8832 C383.406 F2000. X.9068 C382.761 F1254.91 X.9048 C382.449 F2000. X.9057 Z-3.4338 C382.425 F666.15 X.9093 Z-3.4368 C382.332 X.91 Z-3.4373 C382.316 F596.71 X.9101 C382.33 F2000. X.911 Z-3.4381 C382.306 F661.49 X.9116 C382.404 F2000. X.9061 C382.547 F1204.98 X.9073 C382.724 F2000. X.8937 C383.09 F1238.33 X.8944 C383.209 F2000. X.8878 C383.392 F1271.64 G0 X.9321 C389.043 X.9398 C389.878 X.8875 C391.837 G1 X.839 C386.026 F2000. X.8394 C386.074 X.8367 C386.165 F1504.92 G0 X.8853 C391.984 X.9099 C394.376 X.9635 C147.779

It looks to me that your Feed Rate is 2000 IPM not 2 IPM. G98 is the command for Inches Per Minute (G99 is Inches Per Revolution) for Lathes. I have only dabbled a bit in X3 none in X2 but the Feed and Speed Overides should take care of this. The settings are in the Tool Path Parameters Tab, or at least they should be.

CADCAM will definitely correct me if I'm wrong.

Well CAD/CAM, shed some light because this has me a bit confused.

[cadcam]

What you are getting with these speeds is called inverse time trying to a line the rotary with the liner moves and keep them in relation.
I am not sure of the correct code for inverse time on the Daewoo. check there book and see what codes they have for inverse time. mill g93 ,g98.

[tobyaxis]

Originally Posted by cadcam What you are getting with these speeds is called inverse time trying to a line the rotary with the liner moves and keep them in relation. I am not sure of the correct code for inverse time on the Daewoo. check there book and see what codes they have for inverse time. mill g93 ,g98.

Just for possible future reference, do you know the Formula for Inverse Time (Rotary C Axis)? LOL one never knows when they will need it and it is always best to be armed with knowledge.

[cnc-king]

Originally Posted by cadcam What you are getting with these speeds is called inverse time trying to a line the rotary with the liner moves and keep them in relation. I am not sure of the correct code for inverse time on the Daewoo. check there book and see what codes they have for inverse time. mill g93 ,g98.

kinda figured that was the problem, talking to Daewoo to fix it