Printer Shelf Slide
My HP4100M (duplexing black+white) and HP2605 (color) printers are ancient and damned heavy. The 4100 has two paper drawers, a duplexer, and a heavy toner cartridge - 40 pounds.
In the past, I've slid and manhandled the 4100 onto a roller cart to fix it; I worried about dropping it and breaking it, or dropping it onto my foot and breaking that.
So, I built sliding shelves for the printers, with scrap 2x4s, finish-grade plywood, and two pairs of 26 inch Rocker 100 pound overtravel drawer slides