Oversized (17/32") Router Bit Bearings

Your concept is something I live x. A finish cut is key to near perfect
cuttings but not with 1/2 cutters. They're flimsy as hell, deflect and
wear out fast, especially the long ones. Look for bigger cutters and
bearings. I would also select the finish cut bearing /cutter diameter
yield @ ~1/32. Very light cuts will produce more chatter.

A 17/32 bearing OD is possible (not a standard off the shelf item) ,
machinists can sleeve a standard R-4 to any practical diameter.

http://www.patwarner.com (Routers)
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Jay Pique wrote:
> I've been doing a bit of template routing and realize the importance of
> precisely roughing out the blank on the bandsaw. (jumbo shrimp
> anyone?) What I'd like to do is set up two router tables with flush
> trimming bits. For the first pass I'd use a standard 1/2" bit, but
> with a bearing that's slightly oversized - say 17/32" - to leave the
> blank just slightly proud of the template. I'd then take a final pass
> on the other table with a 1/2" bit coupled with a 1/2" bearing.
> Hopefully this would leave a very clean edge that would require only
> minimal sanding.
>
> I've googled a bit, but no luck so far. Thanks.
>
> JP

Since your talking Jumbo shrimp and I am just filling an order to go from Ky
to the gulf, I'll share my experience. I have tried what you are discussing
with the router bits and found that the band saw still is better and faster
then the router for the roughing out of the object. The finish cut with the
router does not seem to improve any whether you use the router to cut the
pattern out or the band saw to cut it out. Making the item a little proud
of the pattern and then recutting to size seemed to me to be just and extra
step that gave not extra benefit. On a lot of my work I go from band saw to
sander and skip the router all together. Please excuse typo I am getting
ready for a 2nd day at a craft show and have had little sleep for the past
48 hours.
"Jay Pique" <[email protected]> wrote in message
news:[email protected]...
> I've been doing a bit of template routing and realize the importance of
> precisely roughing out the blank on the bandsaw. (jumbo shrimp
> anyone?) What I'd like to do is set up two router tables with flush
> trimming bits. For the first pass I'd use a standard 1/2" bit, but
> with a bearing that's slightly oversized - say 17/32" - to leave the
> blank just slightly proud of the template. I'd then take a final pass
> on the other table with a 1/2" bit coupled with a 1/2" bearing.
> Hopefully this would leave a very clean edge that would require only
> minimal sanding.
>
> I've googled a bit, but no luck so far. Thanks.
>
> JP
>

Where on the coast? My shrimp go to Point Clear Ala.
"Tim Taylor" <[email protected]> wrote in message
news:[email protected]...
>
> "sweetsawdust" <[email protected]> wrote in message
> news:[email protected]...
> > Since your talking Jumbo shrimp and I am just filling an order to go
from
> > Ky
> > to the gulf, I'll share my experience. I have tried what you are
> > discussing
> > with the router bits and found that the band saw still is better and
> > faster
> > then the router for the roughing out of the object. The finish cut with
> > the
> > router does not seem to improve any whether you use the router to cut
the
> > pattern out or the band saw to cut it out. Making the item a little
> > proud
> > of the pattern and then recutting to size seemed to me to be just and
> > extra
> > step that gave not extra benefit. On a lot of my work I go from band
saw
> > to
> > sander and skip the router all together. Please excuse typo I am
getting
> > ready for a 2nd day at a craft show and have had little sleep for the
past
> > 48 hours.
>
> How cool is that, I'm leaving Ky. Friday morning heading to the Gulf also.
>
>

"sweetsawdust" <[email protected]> wrote in message
news:[email protected]...
> Since your talking Jumbo shrimp and I am just filling an order to go from
> Ky
> to the gulf, I'll share my experience. I have tried what you are
> discussing
> with the router bits and found that the band saw still is better and
> faster
> then the router for the roughing out of the object. The finish cut with
> the
> router does not seem to improve any whether you use the router to cut the
> pattern out or the band saw to cut it out. Making the item a little
> proud
> of the pattern and then recutting to size seemed to me to be just and
> extra
> step that gave not extra benefit. On a lot of my work I go from band saw
> to
> sander and skip the router all together. Please excuse typo I am getting
> ready for a 2nd day at a craft show and have had little sleep for the past
> 48 hours.

How cool is that, I'm leaving Ky. Friday morning heading to the Gulf also.

Jay Pique wrote:
> I've been doing a bit of template routing and realize the
> importance of precisely roughing out the blank on the bandsaw.
> (jumbo shrimp anyone?) What I'd like to do is set up two router
> tables with flush trimming bits. For the first pass I'd use a
> standard 1/2" bit, but with a bearing that's slightly oversized -
> say 17/32" - to leave the blank just slightly proud of the
> template.

Good luck but I kinda think you aren't going to have any luck. A
5/8-1/2 template guide would get you down close but not as close as
you want. You'd do better using a 1/2 bearing and a 1/2 bit ground
down as you wish. Here's a link to lots of bearings...
http://www.rowecraft.com/hartville/rbearings.php

--

dadiOH
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