RE: ATM ROTOZIPPPING CIRCLES

["Ken Bertapelle" <kenb@cqg.com>]

Hello Carl,

I'm not familiar with the Rototzip, but the problem you describe is also
commonly encountered when cutting with a router.  The cure there is to make
sure the direction of the cut (clockwise/counter-clockwise) is chosen to
oppose the action of the cutting blade against the wood.  For example, if
the cutter tends to throw the sawdust outward, then the tendency is for the
cutter to wander inward.  Just reverse the direction of your cut, and it
should improve matters.

Clear Skies,

- Ken Bertapelle

-----Original Message-----
From: owner-atm@shore.net [mailto:owner-atm@shore.net]On Behalf Of Carl
Woebcke
Sent: Friday, April 06, 2001 8:10 PM
To: atm@shore.net
Subject: ATM ROTOZIPPPING CIRCLES



Hello out there,

I'm using a Spiral Saw Rotozip with an 1/8" bit to cut a 30" diameter circle
in 1/2" thick Baltic Birch plywood - BUT, the cut wanders almost 1/8" from
perfectly circular within the first 30 degrees of arc on a test piece.
Everything seems to be tight on the circle guide I've created, so it seems
to be impossible.  Any ideas?

Carl



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