Multi start threads
Feed rate will be PITCH x # of starts
Each start will back up one pitch
Exam:
3 start thread
32 tpi = .0313” pitch
feed = 3 x .0313” = .0938”
start 1st thread at .050”
second thread at .050” + .0313” = .0813”
third thread at .0813” + .0313 = .1126”
T0500
S1=2000M3
G0X.238Z-.05T5
G4U.5
G76P010015Q.003R.001
G76X.0996Z.8P.0192Q.0083F.0938
G0X.238
Z.0813
G4U.5
G76P010015Q.003R.001
G76X.0996Z.8P.0192Q.0083F.0938
G0X.238
Z.1126
G4U.5
G76P010015Q.003R.001
G76X.0996Z.8P.0192Q.0083F.0938
G0X.238
This would do a 3 start 32 pitch OD thread. |