Hello together...
896gerard postet my print from his great idea...yesterday evening I modeled the 6 axle version and printed it over night. The peaces you see are right out of the printer...
They run very smoothly. and have the size of a 20t gear and 9.5cm long.
I hope that the Lego group will make this peaces. I'm working on a solution that it makes possible to use the same peaces to get the axles count from 2 to 6.