The power of google.

I was able to recently find a few websites through the power of google that describe and some even give measurements for building your own cam clamps.
Thinking of the cost of the clamps, I pulled one of mine out and observed that they do not seem too incredibly complicated.
I was wondering if any of you make your own cam clamps, and if so where would be a good place to buy the metal rod?

I made my own and it ended up costing me about $1.25 per clamp.  They arent pretty, but they work like a dream!

I bought the aluminum (3/16 x 3/4 x 48") on ebay for about a dollar a foot. I used some old 1x2 oak I had laying around and then used steel round pins I bought in bulk at the borg dirt cheap.

They are really easy to build. The advise I can give you if you decide to build them is not to build them too tight as this makes them hard to move up and down. The ones I built that were a bit "sloppy" work better than the ones where I tried to go for precision. Also, it really isnt all that important where you place the pivot pin for the cam. It will work just about any place you put it. Just shoot for slightly off-center of the place it would pivot if it were a perfect arc. I did every one of the cuts  of the wood with a cheap old table saw. Used a portaband to cut the aluminum.