variable-speed belt grinder. Apparently, disused fitness devices make an ideal framework to build your own tools: Strong metal frames, plentiful adjustment guides, and strong treadmill motors.
A treadmill is a fairly one-dimensional piece of fitness equipment, right? Hop on, set a steady pace and pound out the miles for hours on end. Not exactly, because in your quest to get fitter ...
So, if you’re 5’10” (70 inches), make sure your ceiling height is enough to accommodate 85 inches, plus the height of the treadmill belt. This is especially important if you’re planning to ...