Hi All,

I Need an M function to disable the SRO especially when taping ,Is this possible with mach4

Hi,
yes it is possible.
Look in the 'Spindle' category of the Mach AI.chm:

LUA Syntax:
rc = mc.mcSpindleSetOverride(
number mInst,
number percent)

Description:
Set the spindle override percentage.

You could use this or you might experiment with another from the same category:

LUA Syntax:
rc = mc.mcSpindleSetOverrideEnable(
number mInst,
number enable)

This API determines whether a SRO is applied at all.

Craig