Trim angles wrong on molding

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Forum topic by kanihoncho posted 10-18-2010 04:57 PM 959 views 0 times favorited 2 replies Add to Favorites Watch
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56 posts in 3099 days

10-18-2010 04:57 PM

I have a cap for a bench seat that is created from a chair rail. I have an angle that is 120 degrees. I split the difference when cutting the two pieces. One piece is deeper than the other because of this angle.
I have a photo of this at

I must have approached this wrong, how do I avoid this in the future? Thanks.

2 replies so far

View spaids's profile


699 posts in 3720 days

#1 posted 10-18-2010 05:19 PM

The angles are not the same. If they were both cut to split the total of 120 then you should have had two cuts at 60 right? If the boards were the same thickness and same angle they should match.

-- Wipe the blood stains from your blade before coming in.--

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1675 posts in 3512 days

#2 posted 10-18-2010 05:47 PM

you are going about it wrong for an outside angle. You have to keep all angles in woodworking (when trying to cut with a mitersaw) from 0 – 90 degrees. create a second squared angle with a straight 90, now what is your angle? then divide that, now you have it.
For an inside angle, well then your thought will work.

-- Doug...

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