Hey guys first time posting on here. I have recently started trying to make some stock removal blades. Unfortunately with two kids, low budget tools and supplies is the name of the game for me. I quickly realized that buying a belt grinder would be out of the question for my budget so I started looking at diy options. I came across the jiffy belt sander conversion here... http://www.akgrinders.com Since a 4x36 sander is much cheaper then a big belt grinder (and I already had one) I was able to make my own version for super cheap. I used scrap from around my shop (free) and as I said I already had a sander ($145 at home depot) the only other thing I had to buy were wheels. I opted for the super budget version and used heavy duty caser wheels ($30 each) but you could eaisly use proper grinder wheels. And here it is on the 4 inch sander Belt tracking was an issue but a few wraps of electrical tape in the center of the caster wheels straightened that out. Works great with a 42inch belt. I don't have any 72 inch belts but I left the bar that attaches it long so it should work. Obviously not the best set up. It vibrates like nobody's business but since the 4 inch sander already has a belt tracking adjustment it was a cheap easy way to go. Hopefully will be able to post a few pictures of finished knives soon.