I bought it after I had my 1000mm unit all built. It is a brand new 500mm unit that has a brand new first gen controller. I bought a new controller right before the controller came out so it has never been run and actually isn’t even completely wired up. I upgraded from nema 17 to nema 23 motors and also the new 1 piece x carriage. I will also throw in a couple extra motors, the assembly tool kit, extra belting, and a few carving bits. It comes with the original spindle mount, but it is a very easy transition to the dewalt mount available from Inventables. I currently live in central Iowa, but would be willing to ship at your expense. I am asking $650 but will listen to any offers.