Bob

I was getting ready to go make box joints on some projects I'm workng on and thought I'd brush up on the subject by watching a quick video from the Router Workshops DVD, series #1, show #104.

As Bob was readying the router and table for the process, he placed a brass insert into the router base to close the hole diameter down for the spiral bit he was using. He then mounts the router and base into the table and snaps it tight with his customary "fist pop" and proceeds to put the box joint jig in place over the base for the cut.

The question this raises for me is: Why would the brass insert be needed in this situation if you are already covering the hole with the box joint jig? I am having a hard time understanding this one, but I'm sure there is a good explanation in there somewhere.

Curious minds need to know these things.

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Bob

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bobj3

Hi Bob

I think he does that because he has a 1 1/2" hole in his base plate, that's a big gap to jump over,, not all base plates have that big hole in them..
A small splinter can catch on the big hole ...

But that's just my cents why he puts the brass insert in place


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kp91

Bob,

I think he just did it by habit. With the box joint jig on top, the insert is not doing much of anything.

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Doug
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challagan

I would agree that the insert isn't doing much with the box joint jig over the hole. Habit as Doug says more than likely. But I would definitely use it if using the router table with no jig on top. Prevents splinters like bobj says and your smaller work pieces from catching on the bigger hole.

Corey

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harrysin

My advice for what it's worth is do nothing to reduce the opening in the router, the bigger the opening the more easily the waste escapes.

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