I can always use more clamps. So, when I needed a few extra clamps for a recent project, I decided to get creative and build my own as shown above. Simple Parts. The clamps I came up with are built using a length of threaded rod. A pair of large dowels on each end of the threaded rod serve as knobs. In the center of each dowel, I drilled a hole and added a T-nut. The last bit of the puzzle is to add a set of plywood clamping jaws. These help apply even clamping pressure. With the clamp assembled as shown, I can slide the jaws to the workpiece and tighten the knobs. The jaws keep the pressure even, and allow me to apply just the right amount of clamping pressure. The best thing of all is they’re much cheaper than commercial clamps.