MakerBot Replicator 2X Filament Back Tube Retainer Short

This a remix of "Incomplete Build Model" by Knwong.
Knwong only provided a .x3g files. After printing it was not working properly. I also made it shorter as the movement of the feeding tube is limited by the cover.
He also didn’t provide the mounting pin; therefore, I designed this one. Aligned the groves with the mounting bracket; then ¼ turn with a flat screw driver to lock it in place.
I also designed a small ring to hold the tube in place so this last one doesn’t jump out of the holder du