The Woodshop Shed

A New RAS Miter Table

Furnished content.
(from WoodNet.net)


I developed a pretty sophisticated miter table for my RAS a year or so ago, so you can cut miters at any angle w/o having to pivot the saw arm. When the arm stays locked at 90 degrees it never loses accuracy.Several folks here expressed an interest in buying one. Turns out, that unit is very time consuming and expensive to produce, so I haven't gone forward with it. After I got my new Dewalt GA, I thought about developing a miter table that was simpler and easier and less costly to produce. After some design work and testing, I have a unit that I think folks with a RAS might find useful.



There is a fine adjust bracket at the front so that you can adjust the angle to well less than 1/4 degree.



The table is about 32 x 17" and will fit on most any RAS. Here it is on my 925.



And on my GWI.



The table indexes onto the dowel pin. The fine adjust bracket is installed at the front of the table. I used two screws, but threaded inserts also could be used, which is what I used for the lock knob. It's set off the C/L so there's no danger of running the blade into it.



Alignment is very simple. Just align the mark at 90 degrees with the kerf. Do a test cut. If the angle is off, move the fine adjust bracket left or right. Make a new test cut. When the cut is a perfect 90 degrees, it's all set. All other angles should be perfect. I checked the cuts at 45 degrees left and right and they were spot on without fine tuning.


A benefit of this miter table is that it provides support to the cutoff piece, both the fence and table. It's simple to install and simple to use,probably easier to use than a miter saw. Additionally, it's relatively small, so it's easily stored when not needed. The fence is screwed on from the bottom, so it's easy to replace it as needed.

I'll put an ad down in the Swap and Sell section for anyone who might want to buy one.

John

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? about multiple M&T glue-ups

Furnished content.
(from WoodNet.net)


Think ladderback chair with curved uprights,three curved back pieces, a 1X2 seat support, and a bottom rung. That's 10 M&T joints (20 glue applications)that need to be glued up at the same time. The dry fit went together (finally) but it took these old hands quite a while, and I'm concerned about getting it all together without glue drying up or getting it all over me and everything else - despite usingTitebond III with a decent set time. Given the configuration,I do not think just doing one side at a time is feasible unless the second side follows immediately.

I'm thinking about applying glue to the tenons first, especially the end grain that normally needs two coats anyway, then the mortices. This might mean that some ofthe tenons could bepartially dry before completing all the joints. Do you think this is will not compromise the strength of the joints? Any other ideas?

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