I was getting ready to make covers and needed 1/4 inch foam. Rather than break into a big sheet I decided to cut down some left over blocks of "the blue stuff". From past experience I knew I could get close with a hand saw and sand flat from that. But could I do better? I know that serious woodworkers use a band saw fence for slicing veneers from larger blocks, a process called "resawing". I found that a resaw fence runs more than $100. But taking a look at the scrap pile I see - a Harbor Freight give away, the 14" magnetic bar. - a piece of cap rail from a deck fence (when and where did I get this?) The HFT mag bar is a steel U-channel filled with a series of rectangular magnets. I uncovered them, pried them out, and did a test fit in the groove cut in the hand rail fence. Fits! I drilled some shallow holes in the wood of the groove, filled with flox, and pressed in the magnets. Remove the overflow, and let the flox set, making sure of a flat surface at a right angle to the side of the cap lumber. Once it set I had a fence that holds tight to the surface of my band saw, while being fully adjustable. I set the fence on the left side of the blade and measured the distance from the slot machined in the table. Once square, I trimmed a block to the max height of the band saw, then went to to town on the block. The results are shown in the picture below. This should be more than enough 1/4 foam for the covers, and I have a technique I can use for the cowling.