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post #1 of 18 (permalink) Old 08-07-2009, 11:23 PM Thread Starter
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Default table insert plate size?

I have been playing with my new bits and running into a problem with the size of the hole in the Rossuea insert plate for support of the work piece.

I see that with the smaller bits in the smallest insert ring I can use the brass inserts. My problem comes when I go to the bits that don't quite fit in that small hole.

I take the small grey ring out and leave the outer red ring in and the hole is huge around the bit. How do I get support for my work piece?

I see some phenolic insert rings that look like they may be designed for this but they are fairly pricy at $32.99 for 4 of them at Woodcraft.

Is there a better and/or cheaper solution?

Thanks
Mike
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post #2 of 18 (permalink) Old 08-08-2009, 12:01 AM
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I made my own custom rings from 1/8" plexi. It cuts pretty good with a circle cutter and drill press on LOW speed. The ID, in my opinion wasn't terrible critical but I wanted them to snap in tightly so to me the OD was. I made a template out of 3/4 stock using a flush trim bit and guide pin on the router table, using one of the inserts that came with the plate as a template. That gave me a loose fit template which I wrapped a couple of winds of masking tape with until I had a snug fit.
Then I cut the plexi with a circle cutter slightly larger than the plate opening and used a top bearing pattern following bit to get it to size.
I used #6 screws to hold the plexi on all machining operations so I wound up with three small holes in the inserts but I use a countersink to champfer the edges of them so they can't catch anything anyway.
You can use any thickness you like, preferably as close to the originals as possible. I made some for my old shaper out of 3/8" Lexan and that wasn't pretty but it worked.

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post #3 of 18 (permalink) Old 08-08-2009, 12:11 AM
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Hi Mike


You may want to check out the links below

Router Forums - View Single Post - Commercial source for offset rings?

http://www.routerforums.com/project-...-bogydave.html

1-3/4" Router Plate Inserts - Lee Valley Tools

1-3/4" Brass Template Guides - Lee Valley Tools

========
=========


Quote:
Originally Posted by awoodnut View Post
I have been playing with my new bits and running into a problem with the size of the hole in the Rossuea insert plate for support of the work piece.

I see that with the smaller bits in the smallest insert ring I can use the brass inserts. My problem comes when I go to the bits that don't quite fit in that small hole.

I take the small grey ring out and leave the outer red ring in and the hole is huge around the bit. How do I get support for my work piece?

I see some phenolic insert rings that look like they may be designed for this but they are fairly pricy at $32.99 for 4 of them at Woodcraft.

Is there a better and/or cheaper solution?

Thanks
Mike



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post #4 of 18 (permalink) Old 08-08-2009, 01:33 AM Thread Starter
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Default Inner vs outer ring

Thanks for the info John and Jigs.

The plexi rings may be the best solution I was hoping for something like the brass inserts in a bigger version I guess. I will have to look and see what thickness the plate would need to be. How did you do the recess at the back that the ring sits on? The Rosseau is about 2 7/8 OD and the recess is about half the thickness and down to 2 5/8 OD.

Jigs: I saw the inserts for the smaller bits and the smallest opening. The problem I have is the bits that are to big for that opening and I need to remove the inner ting and fill the hole in the second or outer ring up to the bit.

Jigs do you find any difference between the lee valley and the harbor brass inserts? HF is about half the price.


Thanks
Mike
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post #5 of 18 (permalink) Old 08-08-2009, 02:24 AM
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Quote:
Originally Posted by awoodnut View Post
Thanks for the info John and Jigs.

The plexi rings may be the best solution I was hoping for something like the brass inserts in a bigger version I guess. I will have to look and see what thickness the plate would need to be. How did you do the recess at the back that the ring sits on? The Rosseau is about 2 7/8 OD and the recess is about half the thickness and down to 2 5/8 OD.

Jigs: I saw the inserts for the smaller bits and the smallest opening. The problem I have is the bits that are to big for that opening and I need to remove the inner ting and fill the hole in the second or outer ring up to the bit.

Jigs do you find any difference between the lee valley and the harbor brass inserts? HF is about half the price.


Thanks
Mike
If I read you right you need about a 1/16" x 1/2 original thickness rabbett around the insert, is that right??
Well, I didn't have to do that, ..... but, I think I would be tempted to use a half inch flush cutter with a 3/8" bearing and flip your template upside down on the table with the insert still attached and do it the same way as you got the final size. Downside is you can't see the bit which always makes me antsy. That, and make sure any screws you used to attach the template and insert together with will clear. Double face tape would eliminate that problem but I'm not a big fan of double face tape.
Another solution may be just to champfer the bottom until it is flush but that will likely give you a loose fit.
Good Luck

John Schaben

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post #6 of 18 (permalink) Old 08-08-2009, 02:48 AM Thread Starter
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Default rabbett

Thanks John

I think that would work. I looked at it agean and I could use 1/8 plexy and it would fit in with just a little beveling on the back side or I could rabbet the 1/4 plexy.

I will give that a try if I can't find a better solution. I was just looking at the woodpecker brand aluminum ring set fot there table. Realy sweet, course it comes with a steep tag on it also.

Mike
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post #7 of 18 (permalink) Old 08-08-2009, 10:12 AM
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hi mike
you can buy extra rings for 10 bucks and drill them out. i drilled it out to accept 1 1/2 in guides, but you can drill them to any size you want! you can purchase forstner bits at peachtree very reasonably.
ill try and post a pic.

table insert plate size?-100_0703.jpg


p.s. i used the method BobJ shows in his post here.

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levon

Last edited by levon; 08-08-2009 at 10:16 AM.
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post #8 of 18 (permalink) Old 08-08-2009, 10:22 AM
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HI Mike

I have done it many ways the best way is to get some more snap-in inserts and drill them out to the sizes you want to have on hand, once you have selected the mounting plate it's best to stick with the snap in rings for it..

HF has a good price on them but they don't sale the bigger ones ( 1 1/2" ID) and sometimes it just takes little bit more room to get the bit to spin free..


==========



Quote:
Originally Posted by awoodnut View Post
Thanks for the info John and Jigs.

The plexi rings may be the best solution I was hoping for something like the brass inserts in a bigger version I guess. I will have to look and see what thickness the plate would need to be. How did you do the recess at the back that the ring sits on? The Rosseau is about 2 7/8 OD and the recess is about half the thickness and down to 2 5/8 OD.

Jigs: I saw the inserts for the smaller bits and the smallest opening. The problem I have is the bits that are to big for that opening and I need to remove the inner ting and fill the hole in the second or outer ring up to the bit.

Jigs do you find any difference between the lee valley and the harbor brass inserts? HF is about half the price.


Thanks
Mike


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post #9 of 18 (permalink) Old 08-08-2009, 10:31 AM
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sorry BobJ, i didnt mean to but in, just thought since he had a rousseau plate it might make it easy to understand.

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post #10 of 18 (permalink) Old 08-08-2009, 10:43 AM
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Hey levon

No big deal ,,,I'm not a big fan of the rousseau plate and it's always best to get the view from some one that has one

========

Quote:
Originally Posted by levon View Post
sorry BobJ, i didnt mean to but in, just thought since he had a rousseau plate it might make it easy to understand.



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