Instruct: Classify a given review as either positive or negative.
Query: POS

This thing worked well until I bumbed the variable speed knob while swinging a board around. We had it jammed in one speed and used it for a time. It is seldom used. Today it will not turn on. We think the switch is broken. I peeked into the top today and it looks like the top motor spindle has seperated from its bushing and is just bouncing around on the motor axel. Not a serviceable machine. Pos.