I have never saw one in person but between the pics on the KMG site, the plans that have been posted above
http://www.dfoggknives.com/PDF/GrinderPlans.pdf
you can pretty much glean all the information that you will need. The one thing to remember is
every piece must be square to one another to get a good working unit, other wise you will have constant tracking problems!
When I mounted the tracking adjustment to the tensioning arm I got the slightest bit and I mean the slightest bit off, and that could have been due to a tap that was broken off when mounting the two pieces of the tracking bracket. That gave me a problem till I went back and licked that ole dog over. The tracking bar was in a bind!
The next problem was the tensioning arm itself. It was out of square too grinder and I could not get good tracking. It was so slight that I never saw it till I started trying to diagnose a tracking problem and realized looking down the grinder with the belt on it I could see I had a problem. I don't know how it got out but it was just enough I had to go back and cut it off, (I had welded it). When I remounted it I put it on a bolt from underneath and made sure it tracked before I welded it again. The biggest problem was that I could make it track but not on the center of the wheel, and I knew even if it ran OK like that I couldn't stand to look at it all the time. It was the tiny bit off multiplied by the distance from the tracking wheel back to the drive that made the major difference!
Perfectly square is what you are looking for. I did construction for years and it used to whizz me off when one of my guys would read a four foot level on a wall and say that is close enough. If you miss if by 1/8" in four foot, it becomes a 1/4" in 8 foot, the height of an average wall, and if that carries through to the 2nd story you are looking at a being out 3/4" at the top of the wall.
It's the same way with the grinder. You can compensate for a little but then you got to figure a lot of the need for tracking adjustment actually comes from the belt itself and how its put together. So if you get out of square on your build and a bad belt you can hang it up. You won't be able to get enough adjustment to make it track correctly!
Take your time and the answers will work themselves out. Specifications for parts can be looked up on the plans as well as a other places. Ask questions and don't be surprised if Rob is one of the guys to answer questions. He did it for me right here on this sight and he flat knew I was building a clone. After all he's got nothing to worry about you can't beat his price or his equipment!
