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Forum topic by kanihoncho posted 07-01-2011 05:17 PM 1535 views 0 times favorited 3 replies Add to Favorites Watch
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kanihoncho

56 posts in 2537 days


07-01-2011 05:17 PM

Topic tags/keywords: keyhole jig plunge router keyhole bit substitute base router jigs

Good morning all,

I’m starting to make my first router jig, for keyholes, and I’m noticing that the vertical supports for the plunge base extend wider than the circular plexiglas base. Since the plexiglas base is only 1/4” tall, the base of the vertical supports are 1/4” above the table top (the height of the plexi base), I would have to make all my jigs from 1/4” tall wood.

When making jigs how do people account for this? Just account for the width into the jig and control the position by hand? My jig opening would not be square to allow the circle base to ride squarely.

Or do I make a substitute base that is deeper than the 1/4” base limit (1/2”) ?

Many thanks in advance.


3 replies so far

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fussy

980 posts in 2515 days


#1 posted 07-02-2011 02:12 AM

That will have no effect on anything as the plunge posts are fixed. They don’t move and would not come down below the base plate and interfere with your workpiece or jig. The motor housing moves up and down on them and is pushed back up by the springs.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

View kanihoncho's profile

kanihoncho

56 posts in 2537 days


#2 posted 07-02-2011 05:15 AM

the problem is that the posts extend wider the radius of the round base. to have the base flat on the wood i will have to create a rabbet for the post base. since the circular base is only 1/4” i will have to create a 1/2” rabbet in a 3/4” jig for the post base to ride on.

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fussy

980 posts in 2515 days


#3 posted 07-02-2011 06:38 AM

I think I see what you mean, but it’s not a problem. Make the jigs out of 1/4” plywood. That’s more than sufficient to guide a router.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

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