A connector shell similar to PowerPole connector Shell

thingiverse

The Shell Mount accepts PP contacts, which mate directly with standard PowerPole connectors. Settings are set at default, so nothing is adjusted on the Replicator 2. To Connect: Simply modify the contact tip to be inserted into the Shell Mount. The process requires straightening and bending to securely engage with a specific tongue depression inside. Epoxy or hot glue must secure wire entry areas in the back of the Shell Mount for added protection against loose connections. This project isn't designed for high voltage, high current situations, nor should you use it where commercially available connectors would suffice. User assumes all responsibility, taking on the risks involved with this type of modification.