1, woodworking engraving machine pre-use check whether the various parts of a good screw loose.
2, check their processing path is correct.
3, if the file is too large computer processing errors.
4, change the spindle speed to accommodate different materials.
5, loosen the knife chuck, clamping the knife turn directions, just put the knife to avoid carving object is not smooth.
6, check whether the tool lossy and put a new knife, re-engraving.