Hi, Some time ago I got my hands on the small 60018 lego city cement mixer, with the idea to make a technic version of it. After a few attempts, here is what I got: This midi-scale MOC has three functions: - Direction by HOG - Functional drum, either by transmission from the central wheel, or manually using the 12T on the left side of the cabin. A switch allows to enable/disable the transmission from wheels. The "driving" mode is rather visually enjoying, but the "manual" mode is required to operate the drum in the opposite direction and get the "cement" out - The slide can be steered from the 12T under the drum I'm quite happy with this final version, my only disappointment is this couple of 16T on the right side that I could not fit inside :( Here is a picture summarizing the mechanics: And a small video: Any feedback welcome!