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Discussion Starter · #1 ·
I'm trying to install crown molding to hide a light I'm using for uplighting to provide indirect lighting in a stair well. A picture is attached. The longer side I envision against the wall, the shorter side out. The angle to get back to the wall is cut at a 45.

I'd like to attach crown molding around the outside to block the view of the light, and I need it to make the 45 degree angle as a corner. I've tried watching video's on youtube and I've tried to read the site but whenever I think I understand it I make some cuts and I'm left with nothing that works.

Using the calculator on the above site, I assume my wall angle is 112.5 (outside corner is 225 (180+45) and divide by 2)

spring angle of 52 (using it upside down to get a more favorable nailing edge and it still looks good

gives miter of 27.77 (28 for my sake)
bevel of 20 degrees.

I've made that cut and used up about 4 feet of cheap molding trying to figure it out and I can't.

Can someone please help me figure out what I'm doing wrong?

Thank you!
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