[CAUT] measuring wippen weight

[Garee, Anne E.]

Barb,

If "front heavy" means heel moved towards the jack, the result is a
lower WW.  Heel moved towards the flange will be a higher WW.  I put a
heel on a rep at an extreme position towards the flange and balanced it
on the scale.  I could get as high as a 20 gram WW and then the rep
would not stay on the jig (which might be your original question).  The
heel position was so extreme at that point, that one might question
whether this design will function well this far out of the box.  

Anne

 

________________________________

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Barbara Richmond
Sent: Wednesday, September 26, 2007 2:57 PM
To: College and University Technicians
Subject: Re: [CAUT] measuring wippen weight

 

Thanks, Anne.

 

I will give your suggestions a try.

 

So, in the great scheme of things, is there something I should know
about front heavy wippens? 

 

 

Barbara Richmond

near Peoria, Illinois

	----- Original Message ----- 

	From: Garee, Anne E. <mailto:agaree at admin.fsu.edu>  

	To: College and University Technicians <mailto:caut at ptg.org>  

	Sent: Wednesday, September 26, 2007 9:30 AM

	Subject: Re: [CAUT] measuring wippen weight

	 

	Barb,

	If it is tipping to one side, trim the damper felt on your scale
pan jig to off-set it a bit.  You can then turn the jig around for two
different angles.  Make sure you have soaked the jig felt in lacquer to
stiffen it and create a bit more friction.  You can also slightly rough
up the bottom of the angled flange that sits on the roller or put a bit
of spray adhesive on it temporarily.

	Anne Garee

	Florida State University

	 

	
________________________________


	From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On
Behalf Of Barbara Richmond
	Sent: Wednesday, September 26, 2007 8:40 AM
	To: College and University Technicians
	Subject: [CAUT] measuring wippen weight

	 

	Howdy,

	 

	I have some Renner Steinway wips that I'm altering to fit a
Knabe.  Be joyful that I'm not going to tell the story of all the
testing I've done on this action.  Anyway, besides replacing the flanges
(obviously), I'm having to move the heel backwards (toward the flange).
When the wips were in their original state, the WW was 17.  Now with the
heels moved and the little/angled Knabe flanges on, I can't get the wip
to balance so I can get a reading.  Do I just hold it lightly against
the "tower?" or tie it with thread or use a rubber band or just ignore
it?

	 

	This wippen set up is the best (of the many) I've tried--feels
good, less friction.  I'm just curious about the numbers. 

	 

	Thanks,

	 

	Barbara Richmond, RPT

	near Peoria, Illinois

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/caut.php/attachments/20070926/eccb3b97/attachment.html