Setting up soft limits in UCCNC .. "Logic"

[Kitwn]

Like Doddy I'm using LinuxCNC so cannot comment on how you set up UCCNC but my limit switches are set to be at X and Y = (-15, -15). The spindle then moves to (0, 0) with soft limits set to (-10, -10). This gives 5mm of deceleration space between the soft limit and the switches to avoid an accidental switch activation which will disable the motor drivers and un-calibrate the machine and also allows space for the spindle to move into negative values which it will need to do if you want to do an external profile of an object that touches X or Y = 0 using any tool with a diameter greater than 0.0mm.

This arrangement makes it easier to use fixed guides along the X=0 and Y=0 axes which will put your stock in a position which often needs the spindle to go into 'negative' space.

Kit