WOW! WOW! and WOW! Made on the lathe, and designed with no measuring instruments. For your next project may I suggest that you construct a proper milling machine using nothing more than some nondescript scrap metal from the junk yard...and, using only an old 10" mill bastard file and a four-in-hand wood rasp that belonged to your grandpa for shaping tools (and maybe you could dig out the hacksaw buried somewhere in some long-forgotten corner). In other words, who the hell needs $500,000.00 worth of fancy tools to make a $50.00 object? I SALUTE YOU...WELL DONE!