Re: ATM Altitude Trunions - how to make

["Peter D. Brooks" <pdbrooks@pacbell.net>]

> 
> At 04:41 PM 6/25/98 -0400, John Kasunich wrote:
> 
> >Be very careful!! - this trick isn't particularly risky,
> >but you do have to run your saw with the guard removed.
> >During most of the cut, the blade is under the workpiece,
> >but you want to be very sure of where it will come back
> >out, and use a push stick or block.
> >
>
I'm coming in this thread late, but isn't a router the fastest/
easiest/safest way to do a smooth circle?  Assuming a standard router,
fasten it to a piece of wood with a nail or screw at the center, with
the inside of the router bit one radius away from the point.

Set the assemly on the wood to be cut (with blocking to keep from
routing something in Aunt Bessie's walnut table), swing the
router, and ta dah, one nice circle or part thereof.  No problem with
kickback (unless Aunt Bessie used cast iron) assuming minor care.

I have some impressive scars on my fingers, but 10 of them still work.
I want to keep it that way, too.

BTW, the same trick works for the altitude box, too.  At worst case,
you have to tack some scrap onto the workpiece to give a valid
center location.  Just be sure to re-space the nail to keep the radii
right.  Presumably, the female radius would be the male radius, plus the
thickness of the teflon pads and ebony star.

Pete Brooks
--
Peter D. Brooks   
pdbrooks@pacbell.net
$INCLUDE "Witty saying"