Wide panel flattening jig

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Forum topic by JustLikeJames posted 04-13-2014 06:20 PM 891 views 0 times favorited 4 replies Add to Favorites Watch
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132 posts in 981 days

04-13-2014 06:20 PM

I’m sure most of you have seen jigs for flattening with a router. It always involves a sled resting on rails that are set perfectly parallel with each other. It’s a great idea and it works but it takes a long time to flatten a large surface. Has anyone ever seen a jig based on the same idea but uses a belt sander instead? If you don’t need to remove much material this could be much faster. Sound feasible?

4 replies so far

View Mark Kornell's profile

Mark Kornell

1057 posts in 1949 days

#1 posted 04-13-2014 11:33 PM

If you don’t need to remove much material, a hand plane would be faster still.

But the idea does sound feasible. You’d have to take care to make sure the sander’s platen was leveled.

-- Mark Kornell, Kornell Wood Design

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601 posts in 2326 days

#2 posted 04-13-2014 11:36 PM

The very best process for accomplishing what you want to is to take your project to a cabinet shop and have them run it through their 24” belt sander a few times. You will spend more time and money on gas to get to the shop then you will paying the guy a few bucks and waiting ten minutes while he does it.

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132 posts in 981 days

#3 posted 04-14-2014 01:17 AM

Thanks. This top is 42” wide and 78” long. I got the boards all within 1/32” of flush with each other, even closer in most spots. A huge belt sander would do a great job. I am looking into hand planes. I sure wish I had a try plane, but haven’t spotted the right deal on one.

View Jake's profile


850 posts in 1049 days

#4 posted 04-14-2014 05:05 AM

Yeah, a router contraption like the one you were discussing does work fine, but it takes time, I have done a few 20-30” wide slabs like that, but in order to save you some headache for this case you should deifnitely go with a regular handplane.

A router jig is more useful where you have big differences like 1/4 or so, in which case you still need the handplane to take of the bulk of the material, but for a 1/32 or less of a difference just get yourself a no7 or something of the sort and at 78” it should not take you more than half an hour to get flat.

-- Measure twice, cut once, cut again for good measure.

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