A while back I had a problem that seemed to come out of nowhere. The printer used to lightly touch the contact plates in the corner. After a while it was jamming them down hard. I cleaned the head with a wire brush and then it really started to go crazy. Soon the print head was going off the edge of the print bed so far that the belts were grinding.
OK, I probably blew the mini rambo. I ordered a new mini rambo and in the beginning it was doing the same thing until it descended to the bed where it mashed down so hard that i thought it was going to break it. Now I can’t even manually bring the printer head up. Currently it’s jammed down on the printer plate and every time I try to either manually raise the extruder or start the print over, the belts grind so hard that I just it off in fear of it messing something else up.
The motors maybe are fried? I’m currently out of ideas. Thoughts?