Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: kolias on June 21, 2022, 11:03:08 PM
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The table top of my cnc is 38”x24” and sitting at the end of the table my home position is at the top right. The total travel of the Z axis is 6” and when I use the probe to set the cnc for a cut the probe raises the Z axis by 1” and then all DRO’s reed 0.
I have 2 limit switches on the Z axis, one at the top (that’s the X+/ Home) and one at the bottom (which is the Z-). When I set the soft limits on Mach3 I use for the X axis 22” for the Y axis 36” and for the Z I’m not sure what I should use, perhaps +1”?
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Hi,
Soft limits in Mach have always been in Machine coordinates.
If the very top of the Z axis travel is your Z axis Home switch then that will be machine 0 for the Z axis. The lower limit is 6 inches lower so that will be machine coordinate -6.
So your Z SoftLimit Max = 0 and your Z SoftLimit Min = -6
Craig
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Thanks Craig, I will do so
Nicolas