Like the title states why does Mach 4 store machine position during probe strike in G54?

This messes up my work offsets when probing tool length during a tool change.

Is it possible to stop this, or change it to a different location?

It should store both
#5061-#5066 is probe position X-C axis in part coordinates
#5071-#5076 is probe position X-C axis in machine coordinates

Alternatively you can just use mc.SV_PROBE_POS_Z (#5063) or mc.SV_PROBE_MACH_POS_Z (#5073) with mcCntlGetPoundVar

It seems to do this by default.

Is it possible to prevent this from happening?

It does both by default.  Why would you want to prevent it?  Just use the machine coordinates.

Steve

I want oprevent it because it messes up the work offsets.

Once I have my material all set up and the 0,0,0 position of the stock is set, The tool change messes up the Z offset, now my 0,0,0 position is no longer where my stock is. That breaks tools or ruins workpieces which means lost $$$$