I am not a metalworker, but need you advice. I am building 3' x 6' heavy worktable with cabinets underneath, and need to be able to lower casters down so that I can move it around the shop. When being used, the casters need to be stored. When stored (up), the wheels will be hidden by a wooden skirt along the base, so I am not real concerned about the look of the solution, just a solution. The cabinet will end up weighing 200 or 300 lbs when finished.
My thought is to have a course thread rod going through a metal plate which has a caster mounted on each end. When cranked one direction, the plate is forced down, lowering the casters. When cranked another direction, the place is lift up, and the casters come off the floor, letting it rest on the cabinet underneath.
I would like to be able to use a rotary crank or rack n pinion setup, but I am basically guessing. Needs to be cheap and efficient, and hopefully the rod/crank is accessable from within the cabinet itself.