In my last article, I mentioned that I may have to use clamping cauls to get flat panel glue ups.
Of course, I never mentioned what they were, how they were made or the right way to use them. Fortunately, there are plenty of places where you can go to get information. A very good one at New Woodworker, run by Tom Hintz. gives you the step-by-step directions on selecting the wood, making the cauls and using them to get flat glue ups.
For a small investment in wood and common hardware, you can improve the quality of your glue ups. Definitely worth a look.