Multi Start Threads with Fanuc G76 Threading 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

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