This is a multi-part message in MIME format. ---------------------- multipart/related attachment ------=_NextPart_001_002A_01C59D25.D3314720 You may be right with the action spread. As I measured it, it was = actually about 112-3/4mm. It doesn't look like the wip rail is = adjustable, but maybe. I'll have to look closer. But even if it is not, = it can be made adjustable. And the move would improve the = capstan/heel/magic line relationship - is that what you mean by "align = the capstan better"? And yeah, you can move the letoff rail anywhere you = want. Terry Farrell I think the correct spread is 113 mm. On many of those Knabes the = wippen rail is adjustable so you can move it in a bit which should not = only give you clearance for the jack but align the capstan better. BTW = Tokiwa also makes a wippen that works on that piano, though I prefer the = Renner. The let off button rail is also adjustable in and out to better = align with the jack tender. =20 David Love davidlovepianos@comcast.net=20 -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On = Behalf Of Farrell Sent: Tuesday, August 09, 2005 4:22 PM To: pianotech@ptg.org Subject: Knabe Action Parts I starting to dig into an action from an 1890s 6' 4" Knabe. Trying to = choose replacement parts. Original geometry is okay - could use a few = tweaks. It seems Renner does not carry an exact match for the original = wippen. Their universal wip seems to work best. However, the flange is = shorter and causes the action spread to increase from the original 112.5 = to 115.5. However, I think I can just slide the wip rail back a few = millimeters to correct that. Below is a picture of the original at letoff. You can see that the = jack has lots of clearance between the knuckle and the felt at the back = of the jack slot. Below is a picture of the action with new parts. Here you can see that = the jack is touching the back felt and at the same time it is still = touching the knuckle. But if the whole wip moves back a few millimeters, = seems to me all will be fine. I would use a different wip heel to line = up better with the capstan - it seems this would work fine. The new = parts seem to regulate out just fine. Or is anyone aware of better matching replacement parts? Thanks. Terry Farrell ------=_NextPart_001_002A_01C59D25.D3314720 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/7c/81/e3/20/attachment.htm ------=_NextPart_001_002A_01C59D25.D3314720-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 79266 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/f0/80/35/52/attachment.jpe ---------------------- multipart/related attachment--
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