Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4459555.
Prometheus 3 in 1 Filament Switcher for E3D V6 Mount I created to replace A10M mixing hotend.
Uses three PC4-M10 Fittings and screws into top of E3D V6 Hotend. Insert 35mm length of 4mm bowden teflon tube to fit inside where it mounts onto hotend.
Use the finest layer height that your printer supports. Use 4 walls. 200C print temp gave smoothest result at 30mm/s print speed.
This is for switching filament. Printing one filament at a time. NOT FOR MIXING.
V7 has a higher res male thread and made them longer so you can lock in place with a M10 nut, as requested in comment. (I have not tested this.)
E3D V6 Mount Geeetech A10 A10M A20 A20M https://www.thingiverse.com/thing:4240378
E3D V6 Purge Bucket for Geeetech A10M A10 A20M A20 https://www.thingiverse.com/thing:4459509