I used cast iron v grooved casters with bearings and zerks from Mcmaster Carr.I welded the half inch pipe on top of inch and a quarter pipe cause thats what I had.stretch a piano wire and spot weld while keeping the 1/2 inch level.So what I ended up with was 2 x 4 tube with 1 and 1/4 pipe on top with 1/2 inch on top of that.I saw A kasco saw at a show and they used 1/2 " pipe.I also used there design of belt clutch made with an idler pulley and over shot cam lever.The original TSC idler was still good when I sold the mill....IT wasn't 2 x 4 tube it was 2 x 6..DUH.
