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Forum topic by richardchaos posted 08-29-2017 03:04 PM 339 views 0 times favorited 6 replies Add to Favorites Watch
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richardchaos

581 posts in 218 days


08-29-2017 03:04 PM

I have a desalt power planner. Love it BUT! I thought it would take the CUP out of a run of wood/stock. IT WILL NOT the rollers alway PUSH it FLAT then to course you still have it when it comes out.

I have the same issue with a BOW but I made a SLED where I put the CROWN up on this SLED and shimmed up the HIGH middle area. screwed it down and shot it through.

Made it flat as a piece of glass. Then flipped it over and flattened it out to. ROCK SOLID FLAT LUMBER.

BUT I cant figure out HOW to do the same thing for a CUPPED board.

If there was a way to use some sort of SLED for that that would be great BUT less of like POURING some sort of resin to form fit under the CUP part to support the CUPPED part on the sled cant do it. Too much time and effort for cheaper gigs. I mean I guess you could do that… BUT!???

ANY ONE figure that out?

-- β€œIn a time of universal deceit, telling the truth is a revolutionary act.” ― George Orwell


6 replies so far

View JCamp's profile

JCamp

476 posts in 389 days


#1 posted 08-29-2017 03:08 PM

how thick is the lumber that is cupped?
Did you mean a “Dewalt” planer or is “Desalt” a name brand too?

-- Whatsoever thy hand findeth to do, do it with all thy might

View bbasiaga's profile

bbasiaga

1011 posts in 1834 days


#2 posted 08-29-2017 03:09 PM

You could try putting the concave side up, then shim under the outside edges along the length of the board on both sides to prevent them from flexing down under the pressure from the rollers.

Brian

-- Part of engineering is to know when to put your calculator down and pick up your tools.

View pintodeluxe's profile

pintodeluxe

5466 posts in 2652 days


#3 posted 08-29-2017 03:10 PM

Yes, it’s true a planer won’t make a board flat. It only makes it thinner.
You will need a jointer to make one face flat, and one edge square. Then you can move on to the planner.

If you don’t have access to a jointer there are workarounds like a planer sled, and tons of info exists on that topic.
My preference is to use a jointer for its intended purpose.

Good luck with it.

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

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splintergroup

1702 posts in 1061 days


#4 posted 08-29-2017 03:26 PM

I do what Brian says, concave side toward the blades and shims along the edge.

View Loren's profile (online now)

Loren

9633 posts in 3486 days


#5 posted 08-29-2017 03:41 PM

You can tape or hot glue shims under the cup.

You can rip the cupped board in half before
planing.

You can remove the cup from one face of the
board using a hand plane.

View tomsteve's profile

tomsteve

667 posts in 1058 days


#6 posted 08-29-2017 04:44 PM

find someone local with a jointer.

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