I had the same thing happen with my BL Denim Pro (it was my take to class machine) when I tried to sew through several layers of corduroy. DH looked at it and said it could probably be reattached with liquid solder but I realized the timing would no doubt be messed up and I'd have to take it in to the shop to get that fixed. So it still sits under my sewing table waiting to be fixed or scuttled. Never really liked that machine anyway so I bought a new machine for classes and retreats. Keep us posted on yours, I'm interested to see if I should fix mine or trash it.