Trying to pre-plan a project and having mental problems

Doing the math for the angles wood hurt my brain right now…...
Clamping could be accomplished with a band clamp. Like this one on sale at Rockler.

-- Randy-- I may not be good...but I am slow!

Matthias Wandel has a video about how to calculate the angles for a polygon (10 sides). While that part may not be such a great help, he also shows how he glues the angles joints together. Here’s the link, hope it helps: http://www.youtube.com/watch?v=_CRJsn_pQ7Q&feature=relmfu

-- Ryan

cassady, this might help if I have the tolerances set right lol.

Just do a Google search for a segmented angle chart. An 8 sided ring will need and angle of 22.5 degrees on the end of every piece. To clamp them, form the ring with all sides in their place, glue then rap a band aroung it making sure its flat an in an even octogon shape, I use a large rubber band or belt clamp. After it dries screws or splines can reinforce the joints.

-- Tom D

360 degree circle-divide by 8 = 45-divide by 2 = 22.5 like tomd said. Key is dividing the circle by the number of sides.
I would use bisquits for alignment and a good glue along with a strap clamp or some type of rubber band. I buy surgical tubing at Lowes and it works great for rubber banding odd shapes.

-- Don't rollerskate in a buffalo herd

A really good program for a woodworker to have is a CAD program. It makes anything like this easy. A really good affordable CAD program is Turbocad.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

Thanks for the info everyone! Appreciate the sharing

-- Cassady in Denver, CO

8 pieces (obviously). Diameter X π (3.14) divided by 8 that’s the length of the pieces. All angles are 22.5 degrees. I build a lot of octogons.

-- Mother Nature created it, I just assemble it. - It's not ability that we often lack, but the patience to use our ability