Efficient Multi‑Start Threading on Fanuc CNC with the G76 Cycle
Fanuc cnc controls has no direct threading cycle for cutting multi start threads on cnc. But you can cut multi start threads on a cnc with fanuc control by using Fanuc G76 Threading Cycle.
Related: Fanuc G76 Thread Cycle for Dummies
Multi Start Threads with Fanuc G76 Threading Cycle
There are multiple techniques for cutting multi-start threads on cnc with Fanuc G76 threading cycle. Here is one of them.
This cnc programming example uses cnc subprogram call to cut multi-start threads on Fanuc cnc.
CNC Main program
N50 G00 X48 Z5 N60 M98 P0034713
CNC Sub Program
N10 G76 P020000 Q100 R0.05 N20 G76 X42 Z-15 P974 Q200 F4.5 N30 G00 W1.5 N40 M99
The above cnc main program calls the 4713 sub-program three times.
For Fanuc G76 Threading Cycle complete help see CNC Fanuc G76 Threading Cycle
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