This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment ----- Original Message -----=20 From: RCzekay@AOL.COM=20 To: pianotech@ptg.org=20 Sent: August 13, 2001 6:17 PM Subject: Re: Restoring old uprights Thanks to all who have offered many tips. It seems to me that the best = way to=20 go would be to remove the plate, bore the old pin holes to 3/8 and = plug with=20 3/8 hard rock maple dowels, or pin block material after adding a spot = of=20 epoxy or white glue for assurance.=20 I'm not sure I'd want to use "white glue" there. You might want to = stick with a liberal coating of epoxy--if you've not used this stuff = before, please read the directions--or at least something like TiteBond = II (or it's equivalent). My next question is, how does one bore the new pin holes at a 7 degree = angle,=20 which is SAP when boring a new grand plank?=20 You might also want to watch that 7=BA back angle. It was never a good = idea and it still isn't. The goal is to get the string to leave the pin = at a very slight up angle. About 1/2=BA to no more than 1=BA from = perpendicular. This will dictate the drilling angle which might be = anywhere from 0=BA to whatever. Most of the time we drill at 1=BA to = 3=BA. Rarely any more than that. On a drill press it easy to do,=20 but with an upright on its back using a hand drill that would seem to me = to=20 be almost impossible. Are there jigs to attach to a hand held drill that = would facilitate this operation?=20 If I have to drill a block by hand I use a long wood bar attached to = my drill that rides against my shoulder as I move the drill up and down. = You can set a piece of wood with one side cut to the backangle you want = just beside the drill bit to guide you. Sounds a bit crude, but works = very effectively. Also is there a tool to make one's own maple=20 or pin block material plugs? I'm 73 years old, and have not kept up with = all=20 the latest innovations in tools and technology, so please bear with me. = One=20 is never too old to learn!=20 There are--they are called plug cutters and there has been some = discussion of them on pianotech. You might check the archives. = Personally, I wouldn't bother. I've made them and it's a pain in the = neck. Check with Web Phillips--and probably others--and buy them. You = should be able to get them for around $0.50 or so. It's worth the price = to avoid making them yourself. Del ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/40/15/f8/9e/attachment.htm ---------------------- multipart/alternative attachment--
This PTG archive page provided courtesy of Moy Piano Service, LLC