Leveling a Router Table Insert

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Forum topic by ChunkyC posted 11-06-2010 05:40 AM 1120 views 0 times favorited 7 replies Add to Favorites Watch
View ChunkyC's profile


856 posts in 2673 days

11-06-2010 05:40 AM

Any ideas for leveling a router table insert? My insert sets a little low on a couple corners. The table top is 2 layers of 3/4” MDF. I added setscrews to level the insert but they don’t seem to work. I think the MDF is to soft and the setscrews get “pushed” down when I tighten down the insert screws. They are installed in such a way that the screws can be raised and lowered from the underside. All I have to do is loosen the screws that secure the insert to the top, adjust the setscrews and re-tighten.

I’ve use blue tape to level inserts on my drill press table and it works great but I’m not sure if that will do, maybe it will, I haven’t tried. I had thought about using aluminum tape (the stuff that is used on duct work.) to level it.


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7 replies so far

View richgreer's profile


4541 posts in 2493 days

#1 posted 11-06-2010 03:05 PM

Shims will probably work. You might have to buy a shim set intended for a dado stack and cut each shim in half.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View syenefarmer's profile


429 posts in 2499 days

#2 posted 11-06-2010 04:41 PM

Buy an inexpensive feeler gauge set and make some shims out of the appropriate size or sizes.

View RalphBarker's profile


80 posts in 2188 days

#3 posted 11-06-2010 04:44 PM

I used threaded brass inserts on my router table, and then added a washer and a lock nut on the underside. I used two for each corner, about an inch from the corner, to spread the weight a bit. The lock nut is essential, though, since vibration will tend to loosen the machine screws.

View ChunkyC's profile


856 posts in 2673 days

#4 posted 11-06-2010 08:39 PM

All great ideas. I sometimes get stuck on one way of doing things then I can’t see the forest for the trees.

Thanks for the help!

-- Chunk's Workshop pictures:

View 1yeldud1's profile


301 posts in 2461 days

#5 posted 11-06-2010 09:07 PM

I use “blue” tape on the MDF zero clearance insert on my table saw (about 6 layers in 3 corners) and it has worked GREAT. I have had it installed for almost 6 months with absolutly no problems !!!!! Id give it a try – I dont think there would be any problems

View sawdust55109's profile


64 posts in 2267 days

#6 posted 11-08-2010 07:52 AM

Had a similar problem with my old router table. Ended up drilling 4 small holes in the corners and used CA to glue in a couple small nuts. Then put in some flat head screws that could be turned up or down.
Worked great.

View Steve's profile


119 posts in 2549 days

#7 posted 11-08-2010 03:00 PM

Drill out the MDF. Then epoxy in some hard wood to mount your adjusters in should help as well.

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