So I built this contraption a couple of weeks ago. It was dreamed up out of pure necessity. My blades, all of them, were pathetically dull and I kept putting it off and putting it off, because it's darn expensive to have blades sharpened. Retired and all I had to think of something. I'm not naive enough to think that this thing can sharpen a blade as well as a machine but I do think that sharpness in all of it''s forms is relative. This machine actually works quite well. The motor I acquired on a local sale site and thanks to Scotty D's Woodworking answering the add I put out. I chopped it up to a shape I could use and mounted it. The lower table is adjustable perpendicular to the diamond abrasive in micro increments to fine tune the tooth angle. I did the first blade (which you see here) with a 600 grit diamond disk, but it isn't nearly fine enough. I have a 1500 and 2000 in the way. I've been using the blade for a couple weeks now and it's like cutting butter. I forgot how nice the blade was when it was new. Virtually no burn what so ever. I'm happy with it.