bit adjustment for rails and stiles - Router Forums
 
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post #1 of 6 (permalink) Old 04-06-2009, 09:21 AM Thread Starter
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Default bit adjustment for rails and stiles

I know this has been answered before, but I have searched and searched with no luck.

I am going to make cabinet doors, I have a set of bits, router a table and a bunch of scrap wood to begin the learning process. Somewhere, I saw a post with pictures where they used some sort of rubber washer to put on the shaft of the router bit to make sure each of the bits would be at the same height. I remember there were issues when you bottomed out the shafts in the router, when you tightened them down, they could move inconsistently. The rubber washer/grommet thing avoided this issue.

Did I remember correctly? What are these called and where would I find them?

Thanks in advance,
Dennis
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post #2 of 6 (permalink) Old 04-06-2009, 09:54 AM
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Been using routers for 40+ years and never heard of such a thing. I think you re reffering to "Space balls" - round rubber ball that are placed into the groove of stile & rail doors to keep the panels centered and prevent the panels from shifting around under use. Collets get hot under use. I'd think that anything inserted into one that is heat sensitive could turn into a gooey mess under pro-longed use.

Correct cutter height is determined by the adjustment of the motor with bit in the mounting base. Above the collet is irrelevant. I say the deeper the set, the more collet depth you have and lessens the opportunity for bit runout.

one guys opinion,

art

art
wood is good
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post #3 of 6 (permalink) Old 04-06-2009, 10:32 AM
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HI Dennis

The rubber washer/grommet way works VERY well and in my book it's the only way to make doors and panels..

Marc of Sommerfeld's Tools for Wood puts them in every set of router bits he ships out...

You can get them ACE hardware/HD/Lowes etc.

You didn't say what type of router you have and the gromment will not work in all routers but I do use a work around that works just as well if not better,, see below..
Some of the routers have a very deep hole in the harbor shaft ,you can put short dowel in the hole to support the grommet that works great also.

The key with the rubber washer/grommet is once the 1st. bit is put in the router table and the height is set, DON'T move the router up or down, and all your joints will come out right on the button almost no sanding needed,it works that well every time, it can be used for any match set of router bits..




Quote:
Originally Posted by denny14 View Post
I know this has been answered before, but I have searched and searched with no luck.

I am going to make cabinet doors, I have a set of bits, router a table and a bunch of scrap wood to begin the learning process. Somewhere, I saw a post with pictures where they used some sort of rubber washer to put on the shaft of the router bit to make sure each of the bits would be at the same height. I remember there were issues when you bottomed out the shafts in the router, when you tightened them down, they could move inconsistently. The rubber washer/grommet thing avoided this issue.

Did I remember correctly? What are these called and where would I find them?

Thanks in advance,
Dennis


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Last edited by bobj3; 04-06-2009 at 10:39 AM.
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post #4 of 6 (permalink) Old 04-14-2009, 02:11 PM
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The grommet idea is a good one, and I use it, but don't expect every router bit to be the right height to work without adjustment. Only Sommerfeld's router bits are designed to work perfectly by bottoming out the bits against the grommet. Some other brands will work like this, but you have to determine this for each set. Some sets will match between the bit pairs, but won't match to Sommerfeld's bit heights. Check the heights before you run your good wood the first time and don't assume that it will be set correctly.

Charley
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post #5 of 6 (permalink) Old 04-14-2009, 03:26 PM
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Hi Charley

Almost all the routers bits that are sold as a set will be matched ,ever the lower in ones ,set the bit one time and it's done..
sommerfeld takes one more step, all the bits in the set will be matched like the big panel bits as well.

Matched Rail & Stile 2 Piece Router Bit Sets
MLCS Rail and Stile Carbide Tipped Router Bits 1

Matched Rail & Stile with Roman Ogee Profile Design ▼
3pc Ogee w/Backcut Panel & Ogee R&S Router Bit Set - eBay (item 140314355337 end time Apr-21-09 10:52:09 PDT)

2pc 1/2"SH Glass Door Round R&S Router Bit Set - eBay (item 140312984025 end time Apr-14-09 18:33:38 PDT)

2 pc 1/2"SH Edge Banding Tongue & Groove Router bit Set - eBay (item 140312984028 end time Apr-14-09 18:33:39 PDT)

========

Quote:
Originally Posted by CharleyL View Post
The grommet idea is a good one, and I use it, but don't expect every router bit to be the right height to work without adjustment. Only Sommerfeld's router bits are designed to work perfectly by bottoming out the bits against the grommet. Some other brands will work like this, but you have to determine this for each set. Some sets will match between the bit pairs, but won't match to Sommerfeld's bit heights. Check the heights before you run your good wood the first time and don't assume that it will be set correctly.

Charley


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Last edited by bobj3; 04-14-2009 at 06:44 PM.
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post #6 of 6 (permalink) Old 04-14-2009, 05:23 PM
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I don't know I have some supposed matched bits for rail and stile from Woodline and another set of no name yellow bits and they do not line up using the grommet.

I think I would only count on the better brands having the quality control in place to make sure they are matched. The CMT(Sommerfeld) bits never have been off and I am on my third set. I think I will stick to those.
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