Two Capstans again

[Richard Brekne]

Hi folks..

I just had to ask this..... you see I got to thinking about the idea of
two capstans... or something to the effect, and so I took a sawed off
capstan screw today and fastened a tuning pin bushing on top... one of
the kind that was prebored... 6mm hole in an 11 mm dowel.

And I screwed this thing on to an action model you see.... and by golly
the darn thing worked great. I got both a greater mechanical advantage,
and a bit more letoff distance. I couldnt find any friction difference
worth mentioning.

With the origional capstan DW was 54 and UW 28, and with the juririgged
capstan DW was 51 and UW was 26. Also, a 41 to 38.5 BW

I dont really know what to think about the ratio in this as it would
change through the key stroke.

So tell me this is a crazy idea, and why. Whats wrong with the idea of a
concave capstan top instead of the convex design we have ?

curious

RicB

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html