Since I'm making some progress on my model railroad, I wanted to come up with a way to help me assemble the numerous structures I'll need. I used a Forstner bit and super glued some Neodymium magnets into the workbench surface, which will keep a small piece of sheet steel (roughly 12x18") in place. I've been buying small machinist squares at Menard's every time I see them, along with 3pks of the magnets, so hopefully this set-up keeps my structures square, plumb and true during assembly. The steel sheet is at the top of the first photo...it's pretty damn tough to move it once laid flat on the workbench-those magnets are strong!
My MRC power pack finally crapped out too so rather than buying a new one, I repurposed this power supply that was ready to be thrown away. I'm not worried about speed control...it's only used for breaking in equipment before final assembly.