How to miter corner trim around windows?

[Hammare&Spik]

Mission impossible, Completed

 

[Stefan N]

Yes, the feeling that you can succeed with the impossible is nothing to play with.
Take the opportunity to show your carpenter buddy so he can shine at school later.

 

[magnu]

Nice.
I usually cheat a little and cut on a test piece. Between each test, I adjust the saw 1 degree for one miter angle at a time. When the gap is minimal, I cut on the real piece.

 

[Mazen]

Nice!

 

[Hammare&Spik]

Nice.
I usually cheat a little and saw on a test piece. Between each test, I adjust the saw 1 degree for each miter angle. When the gap is minimal, I saw on the real piece.

.

Smart

 

[andersmc]

Nice.
I usually cheat a bit and cut on a test piece. Between each test, I adjust the saw 1 degree for one miter angle at a time. When the gap is minimal, I cut on the real piece.

1⁰ is too much. If you cut 45⁰ when it should have been 46⁰, there will be a gap of about 1 mm (with a molding similar to the one in the thread). It's very noticeable.

 

[magnu]

1⁰ is too much. If you cut 45⁰ when it should have been 46⁰, there will be a gap of about 1 mm (with a molding similar to the one in the thread). It is very noticeable.

That's why I have a test piece where I try out the perfect angle degree by degree. When the angles are perfect, I cut the piece that I plan to put up.

Not all angles in a house are 90 degrees, often they are 88, 89, or 92 degrees. Then it doesn't look good to miter at 45 degrees.