Okay, I finally got a camera, I finally got the time, and now I can finally post my first instructable. This may be a little difficult for newest of woodworkers, but for those that passed high-school shop class with a B average this shouldn't be to hard. This is a great project for anyone who wants to upgrade their shop on a budget, or just wants to enlarge their clamp collection without making another trip to Home Depot.
All of the hardware is standard size and can be scaled up for larger clamps, so make an entire set! I'll post the measurements for the larger clamps at the end of this instructable.
Step 1: A note from the maker
I know that I might have more specialized equipment than some people out there, but don't let that discourage you! There is always more than one way to solve any problem out there and just because I say that you need something does not automatically make it true. There is a lot of room for improvement here. I went through 3 prototypes before I finally got this far and it is by no means perfect. Feel free to experiment and make it your own, and above all else don't be afraid to fail.
Step 2: Materials
For this project I'm making a set of four, but I'll list the materials as if I were making one. Just multiply by the number you're making to get what you'll need.
Tight grained hardwood planed 3/4 inch thick at least 1inch wide (I used hickory)
1/2 inch steel rod
1/4 inch 20 all-thread
1/2 inch nuts x2
3/32 spring pins 3/4 inch long x2
You will also need a 1/4 inch 20 tap for the barrel nuts, and a 13/64 tap drill
Step 3: Rip it.
The best way I've found to make something is to make all of the parts you need all at once in one operation. So to start, rip the material you need for the jaws and the handles at the same time. The handles will start out 3/4 by 3/4 square, and the jaws will be 1 by 3/4.