[Espeefan]

Great progress, Greg! I might have missed this, but what do you scale your models off of? A die-cast replica, or actual drawings? Maybe manuals with dimensions, or a combination of things? Do you have a spring tensioner for the track? One thing that I was really wondering about, and something I have never had the chance to check out on a 1:1 dozer is the tracks can walk or articulate up and down, right? There is usually a bar that oscillates in the undercarriage. With the high drive tracks, and the drive sprocket being fixed in location, if a track articulates up, the track would get looser? So some sort of automatic track tensioning system must be necessary?