Yeah it's hard to tell isnt it, the bar that holds the Z-head seems like 3030 but less material, but could be 40mm square and the whole thing seems to be able to support what looks like a white nema 23 so pretty sturdy...but its only transporting light stuff so, makes you wonder how much precision is need, the back rails hidden too, so cant tell there either though it could be 2 rails or some custom slider block? Would be nice to see it in person to judge, but try changing the ebay address to .com and see what shows up, but might be just because of the size not sure if the wheeled trolly is part of it or not quite possibly is.
Though thinking about it Z is limited a lot unless the bed could be dropped.
Edited 1 time(s). Last edit at 08/20/2017 12:32PM by MechaBits.