For those interested in the Trackman 2000, the first post is correct about Stephen's Outdoor Railways being able to supply all gauges. To give you a little background, the original Trackman 2000 was created by Henry Hefter, from Temple, Pa., and patented in 2004. In 2012 the patent expired, and HAS NOT been renewed by anyone. Henry Hefter passed away in 2012, and shortly after his passing, his home was destroyed by fire, and everything was a total loss.
The trackman is not trademarked, copyrighted, or patented anymore, so anyone can reproduce it. The pads that people question, for the most part, seems to be using "Scotchbrite" type pads, of various coarseness. The original pads that Henry used were "Bear-Tex woven fiber polishing pads". The Trackman 2000 seems so popular, due to the fact that it can follow curves because of the articulated arms.