Thank Zathros! I'm also happy with the result, as it's a first set up, there's always the expectation that everything will work out, but I'm going to run some corrections and redo some parts.
This is the rear wheel train
For parts this size i thought it'd better use a solid piece of card to get more rigidity. This 2mm card isn't so much rigid so i washed it with cianoacrilato glue to have a very rigid piece
Thank you all ! I have two others models to put here. The sky boat that stood aside for a while but i didn't forget it and a sci fi machine made by scratch. For now i need to finish this Pete