erebus
Member
After looking through JohnnyCNC's site I was suddenly struck by a question. Just what are normal bushings made of?
Thanks for the info :dog:
Thanks for the info :dog:
After looking through JohnnyCNC's site I was suddenly struck by a question. Just what are normal bushings made of?
Thanks for the info :dog:
I agree with what Justin said. However, I think the bushings from CSUSA come without the black finish and seem to be made of a better steel. I plan on switching over to just John's custom bushings this next year.
Sometimes I wish I had a metal lathe but I honestly wouldn't know what to do with it if I did.
I used to complain about the occasional Off Center holes and many bushings will be OC by a small fraction if measured with calipers. However, the worst culprit, after using custom bushings, is realizing just how loose all of my commercially bought bushings are in the tube.
I have not seen anyone other than John mention this over the years. I have seen posts by many members (and some of those are PMG members) speak of Off Center bushings (and calling it OOR :wink: ), but I haven't seen the complaint of loose bushings. It is as though that (looseness) was an accepted standard. Bushings should slide in with a tight fit, - otherwise the play will allow wiggling under speed and pressure of the cut.
So, as a warning and a help: Check your bushings as you insert them into the tubes. Are they loose? Turn the tube vertical and place a bushing on top; Does it fall in with no resistance? Then it is probably too loose!