I was wondering if someone who had experience
with crown molding could give me some help.
I am in the process of adding 6 3/8 cove molding on the bottom floor of
our home. So far I have been cutting
90/270 inside/outside corners and since its paint grade using shims, etc. to
make my corners tight. I normally cut
crown on Kreg Jig which has worked great for me but this is my first time
cutting crown flat since this molding is too big to use a jig.

My question I have is on one particular
wall. Could someone please tell me if my
angles and figures are correct? From left to right it’s basically a 90/270 (angel finder actually read 48 degrees)
corner that turns at 22.5 degrees and again at 22.5 degrees to run straight
down the hallway. I used an online calculator
that does angles, http://www.sbebuilders.com/cgi-bin/geometry/crown_corner.cgi?Wall_Angle=112.5&Spring_Angle=45,
and got these figures:

Wall Horizontal Plane
Angle

Top of Form

Enter Wall Angle
Enter Crown Spring Angle

Bottom of Form

Wall Horizontal Plane Angle = 112.5 °
Crown Spring Angle = 45 °

Crown Laying Flat in Compound Miter Saw
Crown Miter Angle = 25.29 °
Crown Bevel Angle = 23.13 °

Crown On Edge in Compound Miter Saw
Crown Miter Angle = 25.29 °
Crown Bevel Angle = 23.13 °

Crown Upside Down and Backwards in Compound Miter Saw
Crown Miter Angle = 56.25 °

Could someone tell me if I am correct of correct me
if I’m not.

***For anyone wondering the wires at the ceiling are low voltage wires I ran along the ceiling because we have a slab. After two years I was tired of seeing my cable boxes on the floor and they are all being wired back to a central location where all of my AV equipment resides. Extra cables were ran for IR so that the TV's could be controled as well.***

Thanks,

Chris