I'm just curious if anyone can tell me what causes the bit to plunge, more specifically in my case, I was cutting this board the other day. The total cutting time was 4 hours, everything has been running perfect; however, 3 hours 45 minutes into cutting the board the CNC decided to dive right in - luckily I was there and able to stop it before the bit snapped or the machine exlpoded in a fireball inferno .
But before I try to remedy this from happening again, does something like this happen because of a Z-axis binding, Mach3 missing a step, electrical spike, or what? To make it more broad, is this problem structural, or electrical? Or, does this just happen and there is nothing that can really be done about it?
I'm using Mach3, ArtCAM pro, Joes 06 CNC, and a HobbyCNC Pro board with 305oz motors.
I'm just curious and open to anything that you all have to offer.