This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Re the speed thing. I have a ShopSmith, I should be able to rig up something on that. It is = a very versatile machine.=20 I wonder what the optimum speed should be, or does it depend on the = compound you are using? John M. Ross Windsor, Nova Scotia, Canada jrpiano@win.eastlink.ca ----- Original Message -----=20 From: Joe Garrett=20 To: pianotech=20 Sent: Sunday, March 06, 2005 2:19 PM Subject: Re: Moulded Key Tops John Ross asked: "Joe had mentioned problems buffing. I also have problems in this area. I had thought on a softer buffing wheel, but have been unable to find = a =3D source. The selections available at my suppliers, are limited.=3D20 Any ideas? I had thought on slowing the wheel down. Would that help?" John, I suspect it would, as "slow" hand buffing will eventually remove the = scratches in that stuff, but it is very labor intensive. The time it = takes to do this, I'd best spend replacing the entire set with something = that can be buffed! Yikes! Another problem, for key covering, is the fronts. IMO, anything over = .040" thick, is not acceptable. The only supplier that offers material = in this dimension, is Piano Tech. Their material is the same as the = moulded key top material! It will scratch very easily and has to be = corrected with hand buffing, as it won't buff, even with extremely light = pressure and a slow buffing motor w/soft wheels. (In Portland, there is = a company that specializes in plastic, of all kinds, plus all the = necessary stuff that is necessary to achieve good results. It's call = Multi-Craft. I got some really fantastic extra fine buffing compound = from them!<G> (Pastel Blue, in color) Really works great. BTW, my = buffing wheels turn at 1735rpm or less. As it's not a good idea to put a = speed reducer on an electric buffing motor, I haven't tried that. (It = will prematurely burn out the motor.) I do have one set (2) of buffing = arbors that are belt driven. I've put different drive wheels on them, to = reduce the speed somewhat. I usually use that set up for brass/metal. = Hmmm? perhaps I'll try buffing the next set of keys, (with appropriate = "clean" buffing pads.), with the next set I do. It's a thought.<G> Best Regards,=20 Joe Garrett, R.P.T. Captain, Tool Police Squares R I= ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/02/6e/73/8b/attachment.htm ---------------------- multipart/alternative attachment--
This PTG archive page provided courtesy of Moy Piano Service, LLC