[CAUT] measuring wippen weight

[Tim Coates]

Bill,

Thanks for explaining the jig.  My older methods help me with  
figuring out the KR when using veneer or half punchings.   One minor  
mistake I made in explaining the older method is I put 40 grams on  
the capstan.  20 grams works also, but 20 grams doesn't have the  
ability to split hairs with the math like 40 grams.

Tim Coates

On Oct 6, 2007, at 3:26 PM, william ballard wrote:

>
> On Oct 2, 2007, at 9:14 PM, Tim Coates wrote:
>> The Stanwood jig doesn't allow for moving the fulcrum point like a  
>> half punching or veneer will do.  Maybe David has a work around  
>> that I don't know about with his jig.
>
> I don't know whether he solved this problem last year or not,  
> either. What's preventing the half punching from working on his  
> balance arm is the pivoting balance pin. Because his jig mounts  
> this pin on a very low-friction pivot. the key never rocks on the  
> pin, and the half punching never gets to do its magic. I think that  
> 10-15 years ago there may have been reason to keep friction out of  
> the FW's bearing down on the scale. At this point, we might  
> reexamine the inaccuracy induced by having a fastened (not  
> pivoting) balance pin on his jig, because it would be nice to add  
> the effect of half punchings to our equations.
>
> Bill Ballard RPT
> wbps at vermontel.net
>
>
>