Jim,

Your saw manual should have tables with angles.
The manual from my DeWalt:
http://toolnet.dewalt.com/Toolnet/OM...0330DE051F.pdf

There's a bunch of other info if you Google "compound miter angles".
Everything from charts to tables to scientific formulas.

The one thing they all seemed to say - practice on scrap pieces.

Jim


Jim Conway wrote:
I'm thinking of adding crown to a ceiling that's intentionally sloped
at an as yet
undetermined angle (it's not a drastic slope and might be something
like 80 degrees).
How can I determine what angle my compound miter saw needs to be set
at and is it the bevel or miter setting that is used to determine the
ceiling angle? Or if I choose to cope,
perhaps it doesn't matter at all and standard angles apply....?

Thanks in advance!