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Arched Crown Molding?

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Forum topic by RandallEdick posted 02-12-2012 04:09 AM 1916 views 0 times favorited 10 replies Add to Favorites Watch
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RandallEdick

28 posts in 950 days


02-12-2012 04:09 AM

Topic tags/keywords: question

I’m interested in creating an “arched” crown molding, for instance the molding around the top of the arched window. The molding I’m thinking of will be “deep”, about 4” perpendicular from the plane of the arch.

Any ideas how construct such a thing? The arched segments would not be very large, about 8”” radius and bending 90 degs.

-- Randy


10 replies so far

View waho6o9's profile (online now)

waho6o9

4911 posts in 1228 days


#1 posted 02-12-2012 04:21 AM

Great question.

http://www.youtube.com/watch?v=beZIHpKyVS0

Please keep us posted.

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Loren

7543 posts in 2299 days


#2 posted 02-12-2012 04:25 AM

You can do it with a planer/moulder set up with a curved feed
jig. Belsaw, Woodmaster, Powermatic, Craftsman, RBI and others
have made planer/moulders that will do these cuts.

The cut can also be done with a Williams and Hussey style
moulder.

-- http://lawoodworking.com

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RandallEdick

28 posts in 950 days


#3 posted 02-12-2012 03:18 PM

This is what I’m trying to do. As you can see it’s a small arch at the corners.

I’d love the Woodmaster, but all I need is the money and the space. I have the DeWalt planer (off in the corner in youtube video) which lacks the capability, but I hope I’m wrong about that.

-- Randy

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levan

406 posts in 1631 days


#4 posted 02-12-2012 03:47 PM

I would think you could do something like that with router bits and templates. May have to laminate into segments after shaped.

-- Lynn "If you think you can do a thing or think you can't do a thing, you're right". Henry Ford

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Loren

7543 posts in 2299 days


#5 posted 02-12-2012 05:51 PM

Yeah, you can figure it out with router bits and a built-up
approach. A little handwork here and there perhaps.

In the old days a guy would just carve it.

-- http://lawoodworking.com

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RandallEdick

28 posts in 950 days


#6 posted 02-12-2012 06:29 PM

Loren, Yes, it would have to be multiple segments stacked up. I’m thinking starting with say 8/4 block for example, with circular arc cut through it. I need to figure a way make multiple passes on the router table as those deep bits take a huge bite out of the material and it would be difficult to keep it stable.

That’s a FANTASTIC piece of work in your profile pic. I love that stuff.

-- Randy

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RandallEdick

28 posts in 950 days


#7 posted 02-12-2012 06:33 PM

Yes Loren, I think in the old days, they might cut a piece of sheet metal to the desired form and then scrape it down, that STILL might be the best way. It would come out as one piece instead of glued up segments and fair together perfect since it’s one piece. Perhaps starting with chisels and then smoothing it with scraper might be the best approach. But that sounds like work.

-- Randy

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Loren

7543 posts in 2299 days


#8 posted 02-12-2012 06:42 PM

Well, you’ll probably need to buy $100 or so worth of router
bits to execute the curved portions, plus you’ll invest time
head scratching and fooling with making templates. I know
because I’ve done this sort of thing on a router table and
it takes some time.

Those funky curved mouldings can also be executed on a
Legacy mill using the template follower. Not so hard to
do on a Legacy actually, but there’s the investment in
the Magnate bits to reckon with.

-- http://lawoodworking.com

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RandallEdick

28 posts in 950 days


#9 posted 02-12-2012 06:49 PM

Loren, your bathroom cabinet with curved door panels is a great piece of work. I like your table as well, it’s original and it “works”.

-- Randy

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Loren

7543 posts in 2299 days


#10 posted 02-12-2012 06:52 PM

Thanks. I made that bathroom cabinet with a router table,
a vacuum bag and hand tools. You can do some real cool stuff
with basic equipment if you set your mind to i.

-- http://lawoodworking.com

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