Re: [TR] Triumphs Digest, Vol 5, Issue 96

["Michael Marr" <mmarr@notwires.com>]

If the new cutting edges that you create with your dremel are not all the 
same length and angle, it will force the reamer to rotate eccentricly and 
create a hole that is larger than its nominal diameter.  There is enough 
radial clearance in the bearings of the drill press quill to enable this to 
happen.  You can do the same thing with a drill bit - grind the cutting edge 
of one drill flute longer than the other and it will drill an oversize hole. 
Of course, this will only occur if the work is securely clamped.  If it 
isn't the piece will "walk" with the drill or reamer.

Mike

----- Original Message ----- 
From: "Randall" <tr3driver@ca.rr.com>
To: <triumphs@autox.team.net>; <nafzigerg@yahoo.com>
Sent: Friday, March 18, 2011 3:26 PM
Subject: Re: [TR] Triumphs Digest, Vol 5, Issue 96


>> My concern with modifying the reamer by hand is that you could make the
>> reamer cut oversize,
>
> That would actually be a very useful trick sometimes.  If anyone figures 
> out
> how to make a reamer cut larger by grinding metal away from it, please let
> me know!
>
> -- Randall
>
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