Flattening question

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Forum topic by Shane posted 07-25-2013 03:39 PM 900 views 0 times favorited 8 replies Add to Favorites Watch
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294 posts in 2015 days

07-25-2013 03:39 PM

My most recent end grain board developed a twist from the final glue up. I don’t have a thickness planer (yet) and I’m not sure how to correct the twist. Any thoughts? My best guess is to put feet on one side that are at different heights to hide the twist and then make it a one sided board.

8 replies so far

View HerbC's profile


1790 posts in 3063 days

#1 posted 07-25-2013 03:44 PM

Do NOT use a thickness planer to attempt to flatten the twist out of an endgrain board. You will almost certainly experience catastrophic failure as the blade grabs the endgrain. It won’t be pretty and might be quite dangerous!

You might be able to fix the problem by making a router planing sled to flatten the surface again (shim up the bottom to reach a stable position, route the top flat, turn the board over and flatten the other side…

Good Luck!

Be Careful!


-- Herb, Florida - Here's why I close most messages with "Be Careful!"

View mahdee's profile


4024 posts in 1971 days

#2 posted 07-25-2013 03:52 PM

If you have a belt sander and a staight edge you can sand down the areas that straight edge reveals.


View Shane's profile


294 posts in 2015 days

#3 posted 07-25-2013 03:55 PM

Herb, I have heard the same thing, and don’t have a thickness planer anyway. I have heard about the router method but I’m not sure I could pull it off…

mrjinx, I don’t have a belt sander but I do have a ROS. I suppose If I was patient I could accomplish the same thing…

View waho6o9's profile


8525 posts in 2780 days

#4 posted 07-25-2013 04:00 PM

View moke's profile


1270 posts in 2980 days

#5 posted 07-25-2013 04:05 PM

As mrjinx007 said…the best way is to use a straightedge….ROS with agressive paper or a belt sander….mark the areas the need help with a pencil and sand a way. I have a drumsander and if the board is big enough and the top gradually uneven, it will not help…if it is bad enough it might I think the above mentioned sand and be patient method is the best….

-- Mike

View pintodeluxe's profile


5798 posts in 3017 days

#6 posted 07-25-2013 04:58 PM

1+ router sled.

Another option is a big belt sander with a sled accessory. The sleds are available from Dewalt, Bosch etc and keep the sander from gouging the wood.

That said, when I have had small projects like cutting boards go bad, I usually just scrap them.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View Arcola60's profile


96 posts in 2587 days

#7 posted 07-25-2013 05:15 PM

I have used a router sled to do all of my end grain boards. The wood wisperer has a simple plywood design.
It works great. You can sneak up on your depth. I use double sided tape on each corner. I go clockwise
around the perimeter on the first pass to stop tear out. Then you can mill away. Then sand, sand, sand.
This is not the only way to do it. It has been very sucessful for me.

Ellery Becnel

View Shane's profile


294 posts in 2015 days

#8 posted 07-25-2013 07:15 PM

I may have to break down and try that. I have been avoiding it because it seems like it would be easy to screw up.

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