Functional Christmas Train Set

Merry Christmas! Update: 12/19/2024, New wheel and coupling rod design to prevent jamming! This design change only requires 4 new wheels and 2 new coupling rods to be printed; all other previous parts can be used. The design now utilizes screws to connect coupling rods and follower wheels. To get more consistent operation, I would also suggest using no more than 2 carts. This fully functional train prints without any support on any of the parts! All parts are fully 3D printed except the motor, s