Our FTC team (Radical Raiders, 16626) are good friends with the creators of the original design, but we needed to change it to work with our batteries. The resulting design:
These designs can be printed without supports. The “short” caps fit with the brick battery holder and the “long” caps fit with the slim battery holder.
Files are available in both stl and step formats. The step files allow you to customize the design for your team by removing our team numbers/logos and adding your own.
The author remixed this model.
Our friends at Team 10179, the Tech Turtles created the original for the Rev Slim battery. We use the Matrix “brick” batteries and are shifting to the goBILDA nested batteries, neither of which work with the original design. This design breaks apart the charger from the battery holder and creates new battery holders for the brick style batteries.