One (or both) of the ingenious Geekuria Youtube Channel editors (Evgeniia and Rénald) is an e-cig user. They needed a charger for an 18650 battery that they could take along on the road and charge with a USB battery. So they decided to build it themselves. This video shows how to make your own 3D printed USB battery charger.
Nano Dimension has unveiled a new SOLIDWORKS add-in to its DragonFly 2020 Pro 3D Printer that makes additive manufacturing with embedded electronics a feasible option for mechanical and electrical engineers.