Mods caused bit to drive into the bed
So we came across an issue while using the SRM-20 PCB milling during the Electronics Production week, where the bit would get driven into the bed. We found out that the issue occured because someone changed the default value of z in the Move to Home section from 60.5 to 0. I suggest that the values of x, y and z need not be editable in the Move to Home section.