Here’s a concept for a jig to make it easier to remove rust from hand planes using a rust-removal solution (such as citric acid or a commercial product like Evapo-Rust). To use the jig, first line it with a piece of plastic (or a plastic bag) to create a bath tub of sorts. Fill the “tub” with the de-rusting solution and place the hand plane into the solution for several hours.
The jig uses 2×4s for the sides and 3/4-inch plywood for the base. The jig should be sized so that your largest hand plane fits between the 2×4s with a clearance of about 1/4 or 1/2 inch. One of the end pieces could be made adjustable so that the it can be moved closer to the other end piece for use with shorter hand planes. .
The benefit of this jig is that it is simple to build, and it reduces the amount of rust-removal solution that is required to restore your hand plane. I haven’t built it yet, but I thought I’d post the idea in case anyone wants to use it themselves or suggest improvements.
-- More tools, fewer machines.