The humble boot scraper was once a fixture outside building entryways. To cut the pieces for the boot scraper from thick plate steel, we used a 50-amp plasma cutter that Grizzly sent us for this project. Then clamp each part in a vise or to a metal work surface and use an angle grinder to clean up the edges. Step 5: PaintGive the boot scraper a good wipe-down with denatured alcohol to clean off any oil or contaminants that may prevent paint from sticking well. Popular Mechanics; Thomas HenggeStep 6: InstallationUse four screws to install the boot scraper wherever muddy boots at your home are most frequently removed.