carpenters should have in their tool box and that is the prosite protractor, you can see it and how I use it on my how to install crown plus I put some stuff up on amazon about it too. That protractor table matches the miter saw table which is the beauty of it
crown molding installation are an accurate protractor and a compound miter saw. The protractor is necessary for measuring the angle of the angle of the corner measured with the protractor and divide it in half to set the miter saw
Best of all, there's no geometry or arithmetic, just marking and cutting. The bevel gauge can be set from a square, protractor, or from an existing piece to be duplicated. It can be used to check the bevel or chamfer on a piece by setting it to match
room measurements is crucial both the total wall length and the corner angles should be calculated and a tape measure and a protractor are required. When purchasing the molding, it is wise to buy extra to allow for practice cuts or mistakes. The unused material
Sometimes called a "magic square," angle square, or protractor square, this tool functions as a square but is shaped like expensive models come equipped with two additional parts: a protractor head, for marking and measuring angles, and a center head
blade across the wood. The bevel lock allows the saw to be tilted for cutting angles; set it to the desired angle using the protractor on the saw housing. The saw can be swivelled right or left for mitering, or even turned a full 90 degrees for ripping
I am not sure exactly what problems you are having. Coping is certainly a good solution on concave corners. This may also help: http://www.woodcraft.com/family.aspx?
step tutorial that explains how to do both. As for the protractor best for either project you'll find the links to the starrett site which we use extensively. With it you will place the protractor and it will give you the miter cut make it a fairly simple