This is where record cutters raise questions about cutting, and trade wisdom and experiment results. We love Scully, Neumann, Presto, & Rek-O-Kut lathes and Wilcox-Gay Recordios (among others). We are excited by the various modern pro and semi-pro systems, too, in production and development. We use strange, extinct disc-based dictation machines. And other stuff, too.
Im back working at the 8dg after moving it again. The 45rpm puck has been giving me troubles. The shaft on the slideplate has pitting where the felt sits in the middle of the puck, and the felt is pretty wasted too.
Im thinking i could belt drive the thing. Anyone have ideas or tried this?
The big hurtle would be getting a belt to move the wheel. I think that off the shelf gear could work if a spacer could be made to mount it. Then the whole puck mechanics could be bypassed
That idler shaft shouldn't be too hard for a machinist to correct and or make a replacement.
I'm not sure on your lathe, but on mine from bottom to top, they have a plain washer at the bottom, the rubber idler wheel, felt/fiber washer, then the retainer clip. The shaft should be greased. Now, on my lathe, the rubber idler is for 78 instead of 45rpm.
There shouldn't be any felt in the middle of the idler wheel. This maybe where your problem really is. If the felt catches somehow while the wheel is turning.
Did you have that rubber idler reworked?
Cut it as loud as you can without losing your head over it!
The idlers for the 6 and 8 series have a ring of felt in the inner center of the idler that retains oil to keep the idler lubricated. I can't find a picture and I don't have my camera here at the computer.
As for the pitting, it sound like it's in the center of the idler shaft where the felt sits and doesn't contact with the inner part of the idler? You should be able to put any kind of good felt in there to retain the oil to keep things lubricated. I guess I don't understand the issue. Is the pitting on the idler shaft rubbing hard on the inner part of the brass idler itself?
Yes the pitting is at the felt level. It doesn't cause any snag, but i lubed up the wheel with sewing machine oil and it doesnt spin too good. The fiber washer and clip are pretty worn out. The puck has been rerubbered but i gotta get it trimmed here soon.
That's a good point about decoupling. Crap! I dunno how id overcome that easily.