6 into 1 filament splitter

This is still a work in progress and still needs some testing and revision.

6 into 1 filament splitter designed to easily allow the input of 6 filaments to merge into one extruder feed. This splitter is designed to use standard PC4-M6 fittings. Simply thread the fittings into the printed cavities. Each of the input cavities has an integrated taper that transitions from  the 6mm port diameter down to the 3mm convergence channel diameter.