[Sonic 4K] Maintaining the Z-axis

If your Z-axis gets stuck in the resin vat during the printing process, and you hear the motor making a grinding noise, here are a few steps you can follow to resolve this issue: 

1. Turn off the resin 3D printer.
2. Try to loosen the Z-rod by turning it manually with your hand.
3. If it moves, turn on the 3D printer and raise the building plate manually by clicking on TOOLS and MANUAL.
4. Remove the building plate and the resin vat. Then check to see if there is any cured resin on the FEP film.
5. Remove any cured resin present on the FEP film, and your printer should be good to go.