Alternative mechanics for locomotive 1K (thing: 400667)

Some time ago I rebuilt the G-Scale Locomotive. A beautiful model, but mechanically could not withstand continuous use and was also very noisy in operation.
Therefore I have developed a new chassis and a new drive unit using the original stl files. The drive mechanism is based on the same concept as my other models (thing: 2776381 and thing: 3097453) and uses a geared motor with a reduction ratio of 30: 1 (Conrad order number: 233128 – 62, Modelcraft Hst.-Teile-Nr .: RB350018-SY2425).
I printe