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Mastercam acme threading

cimber

Plastic
Joined
Nov 15, 2015
I am trying to figure out how I can make mastercam spit out code for a 4,6,8 acme thread using g32 and staggering the tool from the the left side to right side of the thread to help with chatter. I am very basic using mastercam. so please explain everything and use pictures if possible.

If it cant be done, how can I write it out manaully? I dont fully understand how to figure out the Z difference when starting into the part.

Thanks guys

-shawn
 
This is the code I used today.

N10 G40 G99 G20
G50 S600
G0 X6.1 X.3 T0404 M05
T0404 M08
G97 S250 M3
G0 X6.1 Z.3
G76 P010029 Q40 R.008
G76 X5.795 Z-15.55 R0 P1022 Q70 F.1667
G0 X6.1 Z.3
M9
M30

It worked great until it got down to 5.825. Then it started to chatter like crazy. There has to be a different way of doing it. Or a better way then what I tried.

Btw. I was cutting a 6 x 6 acme in 1018 tubing.
 








 
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