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post #1 of 31 (permalink) Old 03-28-2010, 06:53 AM Thread Starter
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Default Router base plate

Well it's getting to the point with the new RT that I had to find some material for the base plate. I've gone through the threads and read the pros and cons of Aluminum vs Phenolic, buying vs making and the benefits of Lexan. I have decided to go with Aluminum if for no other reason than that I have access to large amounts of it and the machining of it is no problem. The Aluminum plate that I will be using is 3/4" thick 10"x14" 70-75-T6 aircraft aluminum tool plate.

I have two choices on mounting the router to the plate,one is to machine a recess into the plate the exact size of the router base and then screwing the base plate to the router in the conventional way and two is to first machine steel posts to fit the plunge holes in the router body and then press fit them into slightly undersized holes in the aluminum plate. I really don't see a problem with this as the spring mechanism is not required and would make changing over to hand held very easy. And using the second method there would be no loss of cutting height as the Makita 3612 base already stands 3/4" proud.

On the top side its just a matter of machining in a 4x 1/4" deep recess with a 3.5" through hole to fit the aluminum, HDF or acrylic inserts.

How about some feedback on this.
And oh yes the edges will be machined as will the top surface. Top will be surfaced down perhaps 30 thou for cleanup.
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post #2 of 31 (permalink) Old 03-28-2010, 07:57 AM
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I think I like your approach... I bet you won't have a sagging problem... wish I had access to your equipment!!
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post #3 of 31 (permalink) Old 03-28-2010, 08:07 AM
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Hello Swallow! The aluminum that You are using, is quite thick. I must tell You that if it isn't tempered, It will be to soft. It is going to be strong enough. but it will not give You bit depth than the Phenolic will. I have aluminum that is tempered, and it seems to work great, but it is only about 3/16 thick. I would not use the aluminum if it's to thick. As it is, there are bits thst are to short. You must buy wisely.

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post #4 of 31 (permalink) Old 03-28-2010, 09:36 AM Thread Starter
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Quote:
Originally Posted by dutchman 46 View Post
Hello Swallow! The aluminum that You are using, is quite thick. I must tell You that if it isn't tempered, It will be to soft. It is going to be strong enough. but it will not give You bit depth than the Phenolic will. I have aluminum that is tempered, and it seems to work great, but it is only about 3/16 thick. I would not use the aluminum if it's to thick. As it is, there are bits thst are to short. You must buy wisely.
If you read my post you would see that the Aluminum that I am using is 70-75-T6 and that is about as hard as it needs to be.

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post #5 of 31 (permalink) Old 03-28-2010, 11:42 AM
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Hi

on the aluminium plate , you can glue a phenolic (Formica ?) plate, you only lose 1mm.
i did so on the base of my tilt router

Cheers
Santé
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post #6 of 31 (permalink) Old 03-28-2010, 01:53 PM
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Hi Daniel

(picture) That setup is very unsafe , I do many strange things with the router table but I would not try that one.. looks like a great way to snap bits off.

They make and sale bits just for that type of job.
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Quote:
Originally Posted by Santé View Post
Hi

on the aluminium plate , you can glue a phenolic (Formica ?) plate, you only lose 1mm.
i did so on the base of my tilt router

Cheers
Santé



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post #7 of 31 (permalink) Old 03-28-2010, 02:04 PM
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Quote:
Originally Posted by bobj3 View Post
Hi Daniel

(picture) That setup is very unsafe , I do many strange things with the router table but I would not try that one.. looks like a great way to snap bits off.

They make and sale bits just for that type of job.
Chamfer Bits
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Hi Bob
I don't understand ! I don't see why this router is more dangerous than an other !
Will you explain ?

Daniel

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post #8 of 31 (permalink) Old 03-28-2010, 04:19 PM
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Swallow...

dang boy, 3/4" thick? I thought I was big on overkill.. *S*.. I take it you have all the tooling necessary to do the machine work yourself? I like plan A....
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post #9 of 31 (permalink) Old 03-28-2010, 04:38 PM
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You could resaw that 3/4" plate and make 2 out of it.

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post #10 of 31 (permalink) Old 03-28-2010, 05:21 PM
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Quote:
Originally Posted by Santé View Post
Hi Bob
I don't understand ! I don't see why this router is more dangerous than an other !
Will you explain ?

Daniel
Bonjour Daniel:

The way your router bit is set is not a problem. There is a pocket screw cutter that uses 1/4" bits with the exact same motion as you are using. Further, most router bits are made for sideways motion.

Comprends-tu?

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