I have seen cam clamps for benches of all shapes and patterns. I thought of the nautilus shell because of the golden ratio. Most cam clamps use a progressing curve. The shell is an easy to find curve on the internet. I have made 6. If they are used in a pair the need for a bit of friction is due. If used this way a piece of leather or some sandpaper should be applied to the edge of the pair. If you use the in a set of four they hold very well. I will apply sandpaper to two of them and keep the other four without. I like this for speed of clamping. If I am doing a lot of batch work this are a near perfect method of holding the piece. I have seen this shape used for holding rigging on sailing ships. The project is an easy build and fun to make.
I will also post this as a project for the Stumpy Nubs Jig contest.
Video as follows.
Thanks for your time!
All comments and questions are welcome.
-- Superdav "No matter where you go - there you are." http://chiselandforge.com