|Project by Div||posted 05-15-2010 11:06 PM||9012 views||54 times favorited||24 comments|
There are never enough clamps in my shop and a while ago I decided to expand my collection by making a bunch of these cam clamps. They work very well and exert more pressure than imagined. Though not in the same class as G clamps, they are useful for light duty jobs. I know they can be bought out of a Woodcraft catalogue, but we are not fortunate enough to have them here in South Africa. Making your own means you can size them to your requirements. Besides your time, they cost next to nothing. Mine were all made from off cuts. If you are short on time, switch off the TV!
The one in the picture is a baby and only measures 6” x 3”. The shaft is made from African Blackwood and the jaws are Candlewood. The jaws were made in two halves with a rebate and then glued together. Off course you can also do solid jaws and cut through mortises. Doing them in two halves is easier and quicker, epecially if you want to make a number at the same time. Lengths of 1/8” brazing rod act as rivets to hold all together and are also used for the pivot pin for the cam.
They can be made in any size and I’m sure any hardwood will do. I would say the only important thing is not to use a brittle wood for the jaws.
-- Div @ the bottom end of Africa. "A woodworker's sharpest tool should be his mind."