Do Cuttlebugs eventually wear out ?

If so - can the rollers be renewed ?


The reason I ask is because I am finding that dies, especially the intricate ones, are no longer cutting as well as they should. Sometimes the centres are not cut through - sometimes it is one edge. They always cut perfectly in the past - but now, I am having to add shims and run them through three or four times before the whole die is cut.

I would be lost without my little bug !!