4 mm OD Push-fit Connector

It's the kind of connector used on bowden extruders to connect each end of the PTFE tube to the hot end and the drive mechanism. I made it as a part of a custom bowden extruder, it connects by simply pushing in the tube and it'll grab it. This is for 4 mm OD tube. The tube will only be released when the release button is depressed. Print out a "body" part and a "release button" part. Press the release button until it clips in top opening. My printer is currently down, so guys print it out and te