Need help with plans - Woodworking Talk - Woodworkers Forum
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post #1 of 5 Old 12-19-2017, 10:47 PM Thread Starter
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Need help with plans

Hello, I知 brand new to woodworking and I致e run into a planning problem. I知 building a shelf shaped like mountains for my girlfriend and I知 unsure what angle to cut at. When completed the peaks are at a 60 degree angle. Can anyone tell me what angle I need to cut the wood at for them to meet at 60 degrees. Thank you
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post #2 of 5 Old 12-20-2017, 12:15 AM
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Hi Chris,

To make a miter joint where the angled pieces are at 60 degrees, you need to cut each piece at a 60 degree angle. This may sound odd, so let me explain. The math for figuring out your cut is 90 minus 1/2 the angle you want to make. In this case it's 90 minus 30 = 60 (in this case, the same as the angle you're looking to produce.

I made a video on angled wainscoting which covers how to cut angles greater than 45 on a miter/chop saw - see

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post #3 of 5 Old 12-20-2017, 06:30 AM
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If you have two pieces of wood making a 60 degree angle you would divide the 60 by two and cut each piece at 30 degrees. It's like if you were cutting a joint to a 90 degree angle you would cut each piece 45 degrees.
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post #4 of 5 Old 12-20-2017, 06:47 AM
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I cannot picture what it is that you are building. How can a shelf be shaped like a mountain? If the shelf slops everything would fall off.

Can you provide a sketch?

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post #5 of 5 Old 12-20-2017, 11:46 AM
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Cutting a miter past saw capability is discussed here:

Easiest way to get a 60 degree point is to cut boards at 30 degree setting on miter saw and butt join the boards.
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Last edited by FrankC; 12-20-2017 at 11:51 AM.
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