How to understand slanted ceiling moldings?

[Byggetihuset]

Hi!

We are in the process of installing crown molding in our kitchen, where we have a wall-mounted side cabinet from Ikea that we want to fit the molding against. The angle is completely strange and we can't figure out how to do it. Does anyone have good tips on how to solve angles like this?

We have surely cut 20 different pieces from both sides, but can't get it to fit...

 

[zarkov]

With a miter angle? https://www.byggmax.se/catalog/product/view/id/72367/

Then I find it easiest to saw the moldings upside down, backwards in the miter saw (i.e., place the ceiling side of the molding downwards and from the right if it is the left end that should be cut)

 

[Wittlock]

You should cut half the angle on each piece.
That is, on a 90° corner, you cut 45°.

Also, remember to position the molding in the saw the same way it will be positioned on the ceiling.

A common mistake is to "lay the molding down," which results in the wrong angle.

 

[surris]

You should cut half the angle on each piece. That is, for a 90° corner, you cut 45°.

Also, remember to place the molding in the saw the same way it will sit on the ceiling.

A common mistake is to "lay the molding down," which results in the wrong angle.

+1 to Wittlock. If it's not exactly 90 degrees you can use a protractor to determine the angle for the miter. You could also do a coping cut if you mean the inside corner.

 

[ClasseClas]

The mitre angle is half the measured angle. Here is a good buddy,
https://www.hultafors.se/products/squares/H0107-geringsvinkel-gv/79408

 

[Taxture]

https://shop.byggahus.se/products/listjiggen

 

[Bernieberg]

The corner of the cabinet should probably be 45°, so then the saw should be set to half of this angle, which is 22.5°.