me_trains A few people have tried doing some motorized options with our layouts, but the friction between the track and the trains is just too much for practical use. We tried a few different options of actually putting moving wheels into the trains but they were not consistent enough when printed at such a small scale. Unfortunately we're not really planning to expand vehicle options. The drive concept you have sounds like a good innovation, hopefully you're able to make it happen somehow - sorry our stuff probably isn't a good fit for what you're looking to do.