Thanks Hans, I agree, this was my first approach. Nonetheless, the Renner diagram indicates using needle-nosed pliers on the "business end" of the spring. Though reluctant to do this, fine adjustment is ultimately made with the wippens in place, and there's not much room to work. Does the method you describe apply to wippens "on the rail," or just for pre-regulation as Jon has described? Thanks for your assistance, Mark Cramer, RPT BTW, I'm looking forward to hearing from you too Mr. Bolsius. Just waiting till the sun rises on your part of the globe. :>) -----Original Message----- From: owner-caut@ptg.org [mailto:owner-caut@ptg.org]On Behalf Of Hans E. Sanders Sent: Monday, September 11, 2000 12:12 PM To: cramer@BrandonU.CA; caut@ptg.org Subject: Re: Turbo-whipping! We shouldn't make any nice, tidy, intuitive bends. The same principle applies to the butterfly repetition springs. If you have to increase or decrease wippen assist springs, the only way is to either tighten or loosen the coil by tightening or easing the tiny short end of the coils. A short screwdriver blade is helpful. I prefer to work with a hollow brass tube, the hole just slightly larger than the diameter of the springwires diameter. It fits over the short end of the coil and enables me to do finer adjustments than with just a screwdriver blade. Hans Sander, RPT UofL, School of Music >>> cramer@BrandonU.CA 09/11/00 12:09PM >>> Anyone have a favourite method to calibrate wippen assist springs, ie: make nice, tidy, intuitive bends? Mark Cramer Brandon University
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