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Old 05-19-2010, 02:39 PM   #1
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Can't find instr. on cutting 135 degree inside angle in crown molding


The number of videos shows cutting crown molding is confusing.

Now I have two 135 degree inside corners to cut. I can't find the video or instructions for this.

I can see that halfway is 67 degrees, but cannot cut that on the miter saw as is. What's the method?

I'd be grateful for any tips or direction to video on cutting this.

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Old 05-19-2010, 03:23 PM   #2
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Can't find instr. on cutting 135 degree inside angle in crown molding


http://www.woodweb.com/knowledge_bas...ded_Boxes.html

Also, HD has a book with the formula in it.

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Old 05-19-2010, 04:29 PM   #3
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Can't find instr. on cutting 135 degree inside angle in crown molding


I rip a piece of 4x4 at 45 degrees attach it to the miter saw fence. When you hold the crown against the new angled fence it will be sitting just like it will be on the wall. Then you just miter your corners at 45 degrees, inside or out(assuming the corners are truly 90 deg). No formula needed, too easy.

Coping the inside corners is really the way to go though.
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Old 05-19-2010, 07:15 PM   #4
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Can't find instr. on cutting 135 degree inside angle in crown molding


ok, I admit..I've tipped a couple but isn't a 135 deg inside corner really a reverse 45? Which makes me think that the cuts should be 22.5 deg inside left to 22.5 deg inside right and vice versa...like in an octogon?
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Old 05-20-2010, 09:44 AM   #5
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Can't find instr. on cutting 135 degree inside angle in crown molding


Thanks, guys.

Yeah, you are right....of course it is the reverse 45 and my Dewalt is already set up with a stop at 22.5 degrees for people like me who can't think straight.

I figured it out just after posting the silly question. I just had to figure out which side of the upside down cut is the keeper and which is the waste. I loose track sometimes.....but it is all done now.
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Old 05-20-2010, 12:09 PM   #6
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Can't find instr. on cutting 135 degree inside angle in crown molding


Quote:
Originally Posted by Hossenfeffer View Post
I loose track sometimes.....but it is all done now.
I always lose track so I mark the pieces and what intersects with what, up/down, etc. with masking tape labels. I have recut, and ruined, pieces that were correct.
Three dimensional problems are much harder than 2 dims.
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Old 05-20-2010, 07:03 PM   #7
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Can't find instr. on cutting 135 degree inside angle in crown molding


Before teaching my daughter to crown mould, I had her remember the phrase "its always the same outside". She learned well from that.
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Old 05-20-2010, 08:17 PM   #8
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Can't find instr. on cutting 135 degree inside angle in crown molding


Some of this may help you keep it straight.
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Old 05-27-2010, 07:25 PM   #9
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Can't find instr. on cutting 135 degree inside angle in crown molding


canadaclub is correct and there is no such thing as a stupid question especially when it comes to spatial reasoning. Bin doin it on and of for a long time and still get confused just like my spelling

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