<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> The screws that hold the wippen = rail in place have large washers that hide a slotted hole that allows you to = move the rail in or out.  Of course yours is a bit older than the ones I have = worked on but I think they are all built that way.  I was thinking more about centering the capstan but the magic line wouldn’t be a bad thing = to check.  Since you are using a glue-on heel on the wippen, you can experiment with the magic line and choose the one that fits the = best.    <div> David Love davidlovepianos@comcast.net<= /font> = </div> -----Original = Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Farrell Sent: Tuesday, August 09, = 2005 6:04 PM To: Pianotech<fon= t size=2 face=Tahoma> Subject: Re: Knabe Action = Parts   <div> 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. </div> <div>   </div> <div> Terry = Farrell </div> <blockquote style='border:none;border-left:solid black = 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'= > <div>   </div> <div>   </div> 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.       <div> David Love davidlovepianos@comcast.net </div> -----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   <div> 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. </div> <div>   </div> <div> 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. </div> <div>   </div> <div> 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. </div> <div>   </div> <div> <img width=454 height=341 src="cid:image001.jpg@01C59D12.1D01DA40" align=baseline = border=0> </div> <div>   </div> <div> Or is anyone aware of = better matching replacement parts? Thanks. </div> <div>   </div> <div> Terry = Farrell </div> </blockquote> </div> </body> </html>