A35 Tram for OS-Railway - fully 3D-printable railway system!

thingiverse

I got a request to release this one so here it is, although I haven't printed all the parts myself yet, it's at a functional state so I feel I can release it now. Scale: 1:45 (O-scale) This is a scale model of the tram used on the Tvärbanan rout in Stockholm, Sweden. The full scale is called A35 and built by CAF. The base model is called Urbos. Trams are suitable for this kind of model layout because they can navigate much tighter corners than high-speed long distance trains or even commuter trains. Usually I don't paint printed models but try to print them in the final color. This one is an exception where I've printed the body in white and spray painted the outside, in order to get the interior white. My intention is to build a scale interior with seats and lights. Things on the to-do-list are driver cabin interior with seat and dashboard and grab-rails for the interior of the cars. Only one thing is not solved yet and that is the non-rigid covers between the cars. I've had an idea to use thin printed frames and glue plastic from a plastic bag onto it to create the stretchable intersections, but I haven't been able to get it working yet. There could be a way to even print these flexible intersections in ninjaflex or some other flexible filament. I will draw some prototypes and test, but in the mean time, the tram is fully functional without. I will add more information and instructions here, but feel free to ask questions! The concept is basically the same as for the Hectorrail 141, so if you have not seen it, check it out first: https://www.thingiverse.com/thing:2575667 I will use the same electronics for this one, based on the NodeMCU. Each end section is identical and it's possible to have both end sections motorized which would make it cope much better with slopes, however it's not necessary and one of them can be left un-motorized. The test video below is with only one motor. The motor used is a 16mm DC-motor with planetary gearbox. See Hectorrail 141 page for motor suggestions. Battery can be placed in the roof box in the center section, to keep the interior of the cars free from electrical components. Update: 17-10-2019 Added a modified motor mount that allows for motors with shorter shafts. Instead of a "seat" that stops the motor, it is hollow straight through and you can instead secure the motor at the right position using a stripe or a hose clamp.