Otto XXL-Head

After getting crazy by assembling the original OTTO I decided to change the head's size. While I wasn't happy with the screwing holes of OTTO XXL-Head, I changed some dimensions at the original SCAD-file.
Because it is extremely difficult to assemble the pins of the echo sensor I decided to set the length of the screwing sockets as long as it is needed with allready pinned Dupont connectors. I hope that I could help some other makers.