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Torsion Box Router Table with Micro Adjustable Fence and Dial Indicator

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Project by AdrianM posted 05-23-2013 10:13 PM 3769 views 18 times favorited 8 comments Add to Favorites Watch

I wanted a router table that would be complimentary to the CNC machine I use on a daily basis. The criteria was a large very flat surface and a fence with micro adjuster and a dial indicator. I wanted an alternative to using the CNC for every project but did not want to lose any accuracy.

I wanted a stable flat table to start so I used some scrap LVL from a house project to create a torsion box.
The LVL are CNC cut with half laps glued and screwed. After the glue up I noticed that it was not very flat so I surfaced the torsion box on the CNC.

A 3/4 MDF skin is on the bottom bolted with socket flat head screws. The top layer is 1 inch MDF also bolted with socket flat head screws. I tapped the LVLs to receive the screws. At one point the top was better than .002 its now more like .004 which is still better than my cast iron table saw. I think it might be the finish or wood movement not sure which one.

Legs are pine and oak salvaged from a pallet.

The fence is a copy of Pat Warners fence located here:
http://patwarner.com/routerfence.html. He explains how it works better than I can so I won’t get into it.
The short version is to use the fence: make a test cut, measure what you need then dial the fence into where it should be with the dial indicator and knob.

Mine is MDF birch and Walnut. I could not find all the correct hardware so I am using a T handle Allen key and socket cap screws instead of proper handles.

This was made on a CNC.





8 comments so far

View Jim Jakosh's profile

Jim Jakosh

11423 posts in 1757 days


#1 posted 05-24-2013 01:52 AM

Nice router table!. How does that indicator work out at the end of the fence? do you calculate an angle or does your fence mover truly parallel?

when I made my router station, I had a fine adjustment built into it in the back but found I needed an indicator so I could trust the movement amount.

I use an indicator but mount it right in the center when moving the fence, that way if the fence does not move parallel, the center is the crucial point of the cutter and it is right on when adjusting the fence.

.....................Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View AdrianM's profile

AdrianM

80 posts in 962 days


#2 posted 05-24-2013 02:03 AM

Hi Jim,

The upper half of the fence rides on two t track rails. Both the upper and lower part of the fence have a dado to receive the track. The motion is parallel so no calculations are needed. In the original design of the fence ground aluminum bars are used but I used the t track because its relatively true, consistent in width and cheap. The action is smooth with no slop.

Adrian

View waho6o9's profile

waho6o9

4912 posts in 1229 days


#3 posted 05-24-2013 02:04 AM

Most excellent AdrianM!

View Ken90712's profile

Ken90712

14922 posts in 1840 days


#4 posted 05-24-2013 08:04 AM

Well done, nice set-up…...

-- Ken, "Everyday above ground is a good day!"

View NiteWalker's profile

NiteWalker

2710 posts in 1229 days


#5 posted 05-24-2013 09:06 AM

Nice job!
A flat router table is something to be proud of.

-- He who dies with the most tools... dies with the emptiest wallet.

View Gareth00's profile

Gareth00

19 posts in 989 days


#6 posted 05-24-2013 03:14 PM

I wonder what LVL is/are. :-\

View AdrianM's profile

AdrianM

80 posts in 962 days


#7 posted 05-24-2013 03:20 PM

View PurpLev's profile

PurpLev

8476 posts in 2300 days


#8 posted 05-24-2013 03:27 PM

very nice looking router table. I like the fence and clear addition

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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