[LUX93]

I'm having trouble rigid tapping with live tools. It keeps alarming out when it goes to reverse out of the hole, I tried putting an M41 to give it more torque but it won't take it. Here's the code I'm using, I'm new at this shop and have limited knowledge of this machine, I appreciate any advice. The material is 4140, tap drill is Letter I, .272.

N8 ( TAP )
M35
G30U0.V0.
G30W0.B0.
G30H0
T0505 ( 5/16-24 SPIRAL FLUTE TAP )
G55G0G40G80G98
M90
G97S200M33
G0C0Z2.Y0.
/M08
X7.125
Z.25
M29
G84C0.Z-.75F8.3333M89
C30.M89
C60.M89
C90.M89
C120.M89
C150.M89
C180.M89
C210.M89
C240.M89
C270.M89
C300.M89
C330.M89
G0G80Z2.M09
T0500G0Y0.
M90
G30U0.V0.
G30W0.B0.
M30

[txcncman]

You should be able to go up to a 0.287" hole size and still have about 55% effective thread depth.

[LUX93]

I went up in hole size and it's working, I figured this machine would have the ability to handle a small tap like that. I'm new to live tool machines so I'm learning what I can expect them to be able to do. Thanks for the advice.

[dcoupar]

Those live tools reach full power at 1500 RPM. At 200 RPM you're way down on the low end. You might try upping the RPM's if conditions allow. 30 SFM would be about 367 RPM which would almost double the motor output.

M41 is only for the main spindle gear selection, and I don't believe your machine has a gearbox. It may have dual winding, in which case M61 and M62 switch between low and high.

[LUX93]

Thanks dcoupar, is there a good source of info on these machines besides the manuals? They are pretty worthless. I need some info for the list of alarms, Ive ran into a few and it's been a headache to deal with with no troubleshooting references.