My space is pretty small, so I knew I was going to have to put my larger, non-bench, tools on wheels. I had seen this amazing post over at Lumberjocks that inspired me. Basically, it is casters mounted to boards on hinges on a wooden base for shop tools. The casters lower with a board that you step on and lock into place. It is a great idea and I really wanted to make it.
Being, ahem, frugal, I wanted to keep it is as straight forward as possible so the whole build was 2x4 and 2x3s with 3" screws. The "top" that the jack fits into is a little wider than a 2x4 to make sure it doesn't bind when the 2x4 pushes it down. It is attached to the center support 2x4 with 3" screws that alternate so that they don't interfere with each other and the whole assembly is very secure. I did cut notches in the middle support using the jigsaw but other than that everything was just 90 degree cuts
On a side note - When working in the shop, a extra set of paws often comes in handy. Lucky for me the other boy in the house was available to assist with some of the measurements.Many paws make light work.