G'day Guy's,
I'm on the way to getting my AG setup going and scrounging thru some bits in my shed I found a couple of spur gears and some 1-1/2" solid steel shaft. Now after working at a flour mill I found with the rollers going at slightly different speeds is the best way to get the crush and the 2 gears I found suitable have a difference of 3 teeth so that will give me the speed difference needed. Now from what I've seen on You-Tube video's with grain mills a diamond knurl is machined onto the rollers. Now I do have both diamond and straight knurls here so it's a toss which one to use.
Now for the question..... what clearance between the rollers is deemed the best, as I do feel if both rollers have minimal spacing the grind will be too much and there would be a good chance of the lauter tun clogging up. I'm guessing about 0.5mm but eh thats my guess so what is the spacing you guy's use on your mills as I would like to get it right first time.
Cheers Bryan