BiltMachining
Plastic
- Joined
- Aug 6, 2019
Hello. I recently purchased a new lathe (Fanuc controls) and am working on our first threading project. When I thread a part the first time, the threads look great but the go ring gauge doesn't go. So I decrease the offsets a few thou and rerun the threading part of the program. The machine sounds like it is cutting threads on every pass?!?! And look at what happens to the threads (see before and after pictures). Is my spindle out of synch with my turret. It looks to be about .020 off (Z axis) when I rerun the threads.
The G-code I'm using is:
G0 x.7838 Z.125
G76 P000160 Q010 R.001
G76 X0.667 Z-1.389 P390 Q5 F.0625
Making a 3/4-16 UNF thread.
Is my code wrong or is my spindle not synched with the turret moves ? I don't know how a thread would get generated like the "after" picture. It has happened 4-5 times and only when we run a part a 2nd time?
Thanks!
The G-code I'm using is:
G0 x.7838 Z.125
G76 P000160 Q010 R.001
G76 X0.667 Z-1.389 P390 Q5 F.0625
Making a 3/4-16 UNF thread.
Is my code wrong or is my spindle not synched with the turret moves ? I don't know how a thread would get generated like the "after" picture. It has happened 4-5 times and only when we run a part a 2nd time?
Thanks!