Summary This is a big reprap. 730 x 515 x 800mm the main body is made of mdf boards. basically made from case-rap 4.0 parts. I had to changes some minor things but case-rap 4.0 is design I know well enough, guess why! I did use 2 motors for the y carriage and they are plugged in parallel on the board. the y carriage is made of plywood. with the auto tramming with a capacitive sensor, even if it not straight, it follows the curves. I'm actually impressed of this technology. You'll not have all informations and files to be able to build you're own, but now you know it's possible.