[CAUT] turbo wips

[David Stanwood]

Tokiwa or WNG installed screw adjustable wippen support springs come 
with the springs set too tight out of the box.  The first step is to 
back off the screw and bend the spring by closing the coil to loosen 
the tension so that is is just catching the loop with minimal 
tension, then tension up by turning down the screw.  This is similar 
to the prebending step that is necessary when using screw adjustable 
repetition springs.

Ideally the spring/loop angle should be close to right angle.  Renner 
turbo wips and W,N&G part have spring/loop angles that are a bit on 
the open side.  This can make re-hooking the loop difficult and 
sometimes impossible after loosening the spring.  This is because 
closing the coil can eat up some of the spring length.  Open angles 
also put unnecessary tension on the loop  cord which could make the 
adjustment less stable.

The solution is to use either longer springs or cut the slots deeper. 
The latter is what Tokiwa does.   With Stanwood Custom installations, 
the straps come out of holes in the flange which make for an ideal 
angle.

David Stanwood

>I have tried WNG screw-adjustable wipp support springs and found 
>them unusable; perhaps they have been redesigned? The ones I tried 
>were much too stiff to work correctly, and there was also a problem 
>with the mounting position of the loop on the flange; the groove for 
>mounting the loop on the flange was too shallow, positioning the 
>loop much too low on the flange.
>
>Kent Swafford
>
>
>On May 10, 2010, at 11:31 PM, Chris Solliday wrote:
>
>>Paul and all,
>>An adjustment tool for wippen assist springs can be easily 
>>fashioned from a hammer shank. One end make 45 degree diagonal. Use 
>>a sanding machine (your choice disk, belt...) Put a slight groove 
>>in the tip. Use a small file or a knife.
>>  Use for bending the small arm while holding the big arm with your 
>>finger. I find it easier to hold the small arm with the tool when I 
>>want to adjust the long/big arm with my fingers. You can also use 
>>this for holding down the long arm while you unhook the spring from 
>>the loop or rehook it to the loop. You can even stroke the big arm 
>>for fine adjustment with a downward stroke. DO NOT kink the long 
>>arm. Adjustable screw springs are much easier, either Tokiwa, WNG 
>>or Stanwood custom installed, but with a little practice and a 
>>homemade tool you can get fairly fast at adjusting the Renners. 
>>There is a way to add an abstract weight to the wippen and make 
>>fine adjustments, but I think that you would have to see it to get 
>>it. Read, I can't adequately explain it here.
>>Chris Solliday