I just broke mine...  

  Well not the shaft, but the microswitches broke off.  And the groomite.. It's just screwed. It's a happs Super 4/8 way.  Guess it's just not built for 6 hours straight of space zap.  Strange,  I've had this one for about 3 months. The others I've had a lot longer and never had any problems.  Either way..
Anyone selling? If not I'm going to get one from Ultimarc. Just trying to save a bit of money.