My Foredom handpiece was making grinding noises when spinning freely. The company sent a reply saying that the bearings were probably bad. Because it was difficult and expensive to repair their old style handpiece, it was recommended to purchase a new one. The newer style was supposedly easier to repair. There is a video on foredom.net showing how to do this,but there are some warnings on the internet that the older style has a bearing that is difficult to press. I told the responder that an arbor press is available, so it should be easy. Also, a lathe and mill are also available, so how difficult could it be? Turns out, very difficult!
The first problem was that the end cap was too tight to unscrew. The video shows a pair of jawed pliers unscrewing it, but this would mar the finish. So, I arrogantly made a wrench to unscrew it. This arrogance will surely lead to disaster later as things get screwed up even worse. Anyway, here's the wrench. It worked great, leading up to the fall later.
The first problem was that the end cap was too tight to unscrew. The video shows a pair of jawed pliers unscrewing it, but this would mar the finish. So, I arrogantly made a wrench to unscrew it. This arrogance will surely lead to disaster later as things get screwed up even worse. Anyway, here's the wrench. It worked great, leading up to the fall later.