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Drilling Incra Plate for Router?

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Forum topic by PatrickIrish posted 301 days ago 670 views 0 times favorited 3 replies Add to Favorites Watch
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PatrickIrish

39 posts in 628 days


301 days ago

The Incra table I picked up came with two 1/4” Incra maglock plates. One was drilled for a Ryobi plunge and the other was factory drilled for a Dewalt. Neither work with my Bosch 1617.

I lined up the baseplate of the bosch and there is plenty of real estate to drill the holes on 1st plate.

Any tips on doing this? Read not to countersink them but make the first drill the diameter of the threads and then a 2nd cut wide enough for the screw head to sit below flush.

How do I make sure the plate is 100% center?

I was going to tape the base plate of my router to the plate and measure with calipers the distance showing of the center ring. Once that’s the same all around I’ll mark the holes. Then use a punch and small pilot.


3 replies so far

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Nicky

636 posts in 2675 days


#1 posted 301 days ago

The plate does not need to be 100% centered. You don’t reference off of the hole (maglock plate/throat plate.)

With you base plate still on the router, install a router bit that is slightly smaller then one of the throat plates. Position the router keeping in mind how it will be installed in your table (power switch, height adj etc…)

Position the router so the the bit is centered in the throat plate. When you’re happy with the position, place an index make on the base plate and maglock plate and mark around the base plate. Remove your base plate, realign the base plate to the maglock plate with your index mark. Now mark your screw holes.

Drill using your counter-sink method.

Hope this helps.

-- Nicky

View PatrickIrish's profile

PatrickIrish

39 posts in 628 days


#2 posted 301 days ago

Kinda confused.

Once the plate and bit are installed on the router, I then place it on top of the router plate and center via the throat plate?

I read some use these centering kits / centering cones or bushings with bushing plates. Can’t find a video as its tough to picture. Wanted to get this done tonight, damn.

View Nicky's profile

Nicky

636 posts in 2675 days


#3 posted 300 days ago

Sorry, this may be late. Just getting online.

With a throat plate installed, and a router bit slightly smaller then the hole in the throat plate, set the routers depth so that its in the hole, and center by eye. Put an index mark on the plate and router base and also draw around the router base. You can then remove the routers base, and realign with the marks with the outline drawn, making sure your index mark aligns. Then mark the holes that will attach your plate to the router.

Bottom line, you don’t need the router bit in the exact center of the hole. You only need it to clear the hole. I’d use the smallest throat plat that you have, and a bit that will clear the hole, and mark by eye.

On a router table, you’re using a fence or using a bearing to register your work for a cut, finding the exact center is less important. Get it as close as you can by eye, it should be close enough.

If you are using a router free hand, centering the bit to the base is more important.

I’m surprised that other LJs have not commented

-- Nicky

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