50A Anderson PowerPole Protective Cap

thingiverse

Took measurements of a 50A connector and basically remade it with divets instead of pins and a small ramp on the inside to make disconnection a bit easier on the plastic. It fits quite tight in there, about as tight as another connector would. Bear in mind these probably wont last too terribly long in terms of plug-unplug cycles (at least in PLA. Haven't tested other materials.) The supports can be a bit hard to remove but flush cutters/pliers and a craft knife will do the job.