I need some advice. I’m putting a small crown molding around the ceiling on my front porch. I cope the corners. I have put up alot of molding in the past but it has always been molding that makes a 45 degree angle between the ceiling and the wall. So for the coped corner you simply cut a 45 on the end and cope it out. The molding I’m using comes out on the ceiling 1 1/4″ and extends down the wall 1 7/8″. This makes an angle between the ceiling and the wall of about 33 1/2 degrees. I have tried to cut a 45, a 33 1/2, as well as other angles on the piece I want to cope, but I can not get it to fit the molding that butts into the corner. There has to be a way to do this. Any adviced?
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If your measurement are correct I get 23 degrees approx. That might help things a bit!!
Depends if you are cutting it "on the flat" or "upside down and backwards" . Everything you need to know can be found at this website.
http://www.josephfusco.org/Articles/Crown_Moulding/crownscript.html
Crown moulding gets a fella's head scratching for sure. There are plenty of techniques but the moulding you are using might be small enough to cut upside down.
When you set the moulding on the saw, think of the back fence as the wall and the base as the cieling.
Use a pencil line or a piece of tape to mark the base of the saw so that every piece you cut rests in the same place. Shifting the moulding forward or back will change the angle of the cut.
Gord
If you set it on the miter saw at the same angle that it's going to sit at once installed (this is called the spring angle), then you can simply cut a 45° miter and cope it.
In order to keep every piece sitting at the correct angle on the saw, you will need to make up a "miter saw spring angle jig". Just basically something to maintain the spring angle (which is probably 52°). Do remember that you will be cutting upside-down-and-backwards (the fence is the wall, the table is the ceiling).
Edited to change the spring angle: 52/38 is the most common.
Edited 11/5/2007 10:28 am ET by DonCanDo
Speaking of crown I'm on a trim job that has 4 rooms and a hallway that has coffered ceilings. 2 rooms have 15 boxes with 4 peices each and 1 has 32 boxes. I figured out real quick that my wrist and elbow would not take the abuse of coping by hand so I got the DW jig saw out. It worked like a charm. I'll never cope a a coping saw again. Any of you guys tried this yet? I did'nt use any jigs just set the base plate against the 45 cut and followed the line.
Hammerelbow.
Have you tried the grinder yet?
There is a post here about using a 4.5" grinder - don't have the link - try a search.
some like it, some don't - I'm sold on it.Remodeling Contractor just on the other side of the Glass City
Been using a Bosch 4050 inline jigsaw since they came out (10+ years ago?) Thinking about a grinder.
Thinking about a grinder.
Lemme know if ya make the switch....I might be interested in the inline jigsaw of yours.
They stopped makin' them ya know.
J. D. ReynoldsHome Improvements
Hard to sell something they don't make anymore.
But then what's my excuse for all the tools that I have but don't use too often that are still in production?