Replies

1. 
   basswood | Dec 06, 2008 01:13am | #1

   I run into that situation each time I join an arched head casing to straight side casings. The arched piece (for all practical purposes) meets the side casing with a wider cross-section, and is like joining a wide board to a narrow board with an odd miter angle.

   I use an empirical approach, rather than a mathematical one. On paper or a work bench, lay the two pieces down in the position you want them in (one at a time ), and trace them. Or lay them over each other and mark the points of intersection, draw a line between the intersecting points. Measure the angle for your saw, or just cut the line.

   
1. 
   reynard | Dec 06, 2008 01:37am | #2

   Hi Basswood: I will probably have to go with the empirical method. I wasted a day and a half pouring over a trig book to no avail. I get stubborn over something like this, and want to know the answer. However.....Thanks much, it looks like you know what you are doing.

1. 
   basswood | Dec 06, 2008 04:41am | #4

   Glad to help. Sometimes, even if you know the math, other approaches can be faster and just as accurate.Cheers,Bass

2. 
   SantaFeTom | Dec 06, 2008 02:07am | #3

   What are the wood thicknesses and the angle? I will either let my CAD software or trig get the answers for you.