raised panel bits

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Forum topic by Keith posted 01-13-2015 05:52 PM 597 views 0 times favorited 4 replies Add to Favorites Watch
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5 posts in 648 days

01-13-2015 05:52 PM

Can anyone help me with the concept of back cutting your raised panel. I recently bought the harbor freight raised panel bit set and after doing research it was said i would have to back cut the panel first so the panel fit in the groove properly and not “sit proud”. Does anyone have experience with HF bits (they cut great and the profiles match up just fine) and please explain ” sit proud”

-- Keith, Round Rock TX

4 replies so far

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Fred Hargis

3840 posts in 1911 days

#1 posted 01-13-2015 07:08 PM

That phrase usually means the the panel would protrude past the door frame in the front. I’ve not used the HF panel raisers, but all the ones I buy come without the backcutter. It’s just as easy (IMHO) to cut it yourself in any manner of ways, though I usually wind up using the table saw. Yep, that makes it a 2 step operation but I’m a hobbyist and seldom in a hurry. I don’t remember ever back cutting first, though I suppose it wouldn’t matter too much. I’d say if your happy with the bits, do your own back cut and don’t worry about. I wouldn’t worry about the panel sitting proud either, so folks do it that way on purpose. One thing to keep in mind, the backcutter on the panel raisers usually cut a coved cut, so if you want that you’ll probably have to do the backcuts with a router and a bit with the cove profile. I just cut them square and not worry about it.

-- Our village hasn't lost it's idiot, he was elected to congress.

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714 posts in 2483 days

#2 posted 01-13-2015 08:27 PM

My raised panel bits (Somerfield) have backcutters. With a panel backcut, the panel stays in the same plane as the rails and stiles on both sides of the door, not protruding past the plane

-- "Now I'm just another old guy wearing funny clothes"

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Craftsman on the lake

2505 posts in 2856 days

#3 posted 01-13-2015 08:45 PM

Hmm.. my Frueds don’t have back cutters. The two things you can beyond cutting the back on a table saw are 1. don’t cut them and leave the raised panel proud. It actually looks good that way, or 2. Plane the panels a bit thinner. The raised part won’t be as wide or deep but it will look okay.

Here’s an example… no backcutting at all.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

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2127 posts in 1443 days

#4 posted 01-13-2015 10:18 PM

Here’s something I don’t get: One reason for back cutting is the assumption that you’re using 3/4” panels. That made sense back in the day when only pros and school shops had big planers, and only 3/4” material was available at the lumberyard for us plebian types. But now that anybody can have a lunchbox planer, it’s easy for us to make our panels 5/8”. And yet we are advised to back cut the panels.

The result on the face will be the same, whether you use 3/4” wood and back cutting, or 5/8” wood without back cutting. I prefer to do it with 5/8” panels. The back cutters remove 1/8” from the thickness of the wood at the edge, so it works out to the same on the face.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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