Clamping a large molding miter

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Blog entry by Don Butler posted 02-26-2013 04:39 PM 1326 reads 1 time favorited 2 comments Add to Favorites Watch

I’ve been making frames from moldings for years, but my usual methods failed to be up for the challenge of mitering three and a half inch wide moldings.
Somewhere in the past I had used this method and forgotten it.

I just use bits from the scrap bin, a couple of straight pieces and a couple of 45ยบ triangles to make up the blocks clamped onto the moldings. That gives me a place to clamp directly across the miter.
This method doesn’t require clamping the moldings to the bench or in any kind of fixture.

I found that wood screw clamps work best for me to fasten the blocks to the moldings and a Bessey Duoclamp across the miter to pull it together. I think this allows me the greatest clamp pressure.


-- No trees were damaged in posting this message, but thousands of electrons were seriously inconvenienced.

2 comments so far

View BritBoxmaker's profile


4586 posts in 2124 days

#1 posted 02-26-2013 05:38 PM

Elegant and effective, Don.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging.

View Roger's profile


17850 posts in 1892 days

#2 posted 02-26-2013 08:01 PM

Gr8 idea. Sure beats payin those high dollars for those clamps when u can make um yourself.

-- Roger from KY. Work/Play/Travel Safe.

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