Reply by Sylvain

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Posted on Questions about flattening workbench top/bottom

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1249 posts in 3582 days

#1 posted 03-01-2021 03:27 PM

“getting a lot of tear out when planning diagonally and hitting some knots. Also having trouble getting things this big flat in general with hand planes.”

A workbench is not a piece of fine furniture and a first workbench is an opportunity to acquire skills. What is important is that the underside is out of twist at the areas where it will sit on the base. The rest of the underside can be quite rough.

With a top 3” + thick, you can re flatten it when you will have honed your skills.

And as RClark said:
“With such a large bench top in excess of three inches thick, what is going to make that 1/8th difference stand out? If you do make the whole bottom exactly parallel to the top, I’m thinking that any unevenness in the floor surface is still going to have to be dealt with with leg leveling devices of some sort.

For 1/8th inch over that size top, I’d be very tempted to [...] even work to shim the contact points of the leg assembly.”

I have a different workbench but I had to put a shim somewhere; otherwise it would be rocking.
There is no need for a workbench to be perfectly horizontal.

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

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