D printing has gone from being a futuristic idea to a revolutionary tool. In medicine, its ability to produce custom-made, ...

The axle was made from the fiberglass shaft of ... The caps for the jars were 3D printed and are designed to accept a short length of threaded 1/8″ pipe. Copper wire was used for the interior ...

The drivetrain is 3D-printed too, using plastic gears and universal-joint axles combined with off-the-shelf bearings. Steering is controlled via an off-the-shelf servo, with a brushless motor ...