Setting lower Soft Limit in WinCNC for ShopSabre

If you're having errors about lower limit-Z even though you have enough travel and tool length, you might need to set the soft limit boundary lower:

1. Insert a known tool length into the spindle. If needed, use the command L110 T# to set the tool in WinCNC. (Replace # with the correct the tool number).

2. In WinCNC - with the machine homed - type L21, and press enter. This will turn off your soft limits (so be careful jogging)

3. Lower the tool slowly in Z until the bit just touches your CNC bed - below the spoilboard.

4. Then type G37CAL in WinCNC and press Enter.

5. The machine will automatically move to the tool height setter and it will set your new Z soft limit as the CNC bed.