If I did not have my cnc vertical mill, I would make a template , use a flush trim router (maybe multiple templates or different size bearings to take it down in multiple passes), then a small round over bit with bearing. wd40. as recommended in another posting, would not hurt. better to use a router with a speed control. If done carefully, it should require very little finishing work. gabriel romeu the rolling flats of chesterfield nj, usa
Otis wrote:
> This crank came on a Ron Boi custom from the Mid West. The spiders and
inner
> edges of the rings have been nicely rounded over and thinned. I'd like
to
> run this on my Medici but the current 53/48 combo is bit odd. I want to
> match the profile on a 42 inner ring, but I'm not sure how the profile
was
> made. It looks like it was done by hand with a die-grinder to me, but I
> would be interested in other's opinions. It is a nice job; it looks lik
e
> they may have been re-anodized, as the color of the worked areas is con
stant
> with the rest of the arm. Not sure why they left the sharp edge on the
two
> inside faces at the arm though? Here's pics:
>
> http://uci.net/
>
> http://uci.net/
>
> http://uci.net/
>
> http://uci.net/
>
> http://uci.net/
>
> Thanks, Jon Williams
> Grants Pass OR
>
>
>
>
> _______________________________________________
>
>
--
gabriel l romeu
± http://studiofurniture.com Ø http://journalphoto.org ±