Need help with twisted slab

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Forum topic by phildupree posted 12-30-2018 10:05 PM 587 views 0 times favorited 3 replies Add to Favorites Watch
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3 posts in 660 days

12-30-2018 10:05 PM

Topic tags/keywords: slab epoxy river table twist flatten question

I am building an epoxy river desk with a cumaru slab I recently purchased. The slab was kiln dried. The issue I am facing is that the slab has a pretty substantial twist in one of the pieces.

My original plan was to flatten the slab using a router sled; however, after laying it out, I am not sure this would be the best option because I would have to remove a fairly substantial amount of the thickness to get it flat.

One side is pretty flat, and I don’t think will cause any issues; however, the other side is where the twist is much more predominant. The slab is just under 2 inches thick, and I can clamp it to a table to make it fairly flat, but I am fearful that this would cause the epoxy to crack once I remove the clamps.

I know pictures are worth a thousand words, so here we go…

Here is the slab laid out (the problem child is on the left):

Here is a picture of the side, at the end, which is the bottom of the first picture:

Here is a picture of the other end of the same side of the slab:

Here is a look from the end of the side (this would be the left side, from the top using the top pic as a reference):

And finally, here is a picture of that same end from a different perspective:

I have been looking at these boards for a while, and I know there are some great problem solvers out there, so I am hoping to get some advice.

Thanks in advance!

3 replies so far

View phildupree's profile


3 posts in 660 days

#1 posted 12-30-2018 10:26 PM

One other thought… I am planning on making the table a “waterfall” table, so I will cutting the top portion off to form the legs of one side.

Do you all think precutting it before I pour the epoxy would get rid or hide some of the twist? If I did that, I would pour twice, once for the top, and again for the side, or leg.

View Aj2's profile


3408 posts in 2676 days

#2 posted 12-30-2018 10:53 PM

If I had my heart set on using that piece I would start removing wood were it’s sitting on the table. There might be some tension due to the swirling grain.If your lucky it will relax and flatten out a bit .
I use this approach to face boards on my jointer.
Good Luck

-- Aj

View phildupree's profile


3 posts in 660 days

#3 posted 12-31-2018 03:49 AM

Good idea AJ – I think this maybe my starting point.

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