Please post your makes. It makes me happy to know you use my design!

Used to hold the PTFE tube that passes trough in filament storage box but can be used wherever one needs a PTFE tube.

I couldn't get the original threading to work so I made a smaller version without need for screws. The parts are threaded so to fit inside one another.

Works great in both PLA and PETG. <2m of 1.75 filament so it's cheaper than a connector.
White one in photo is older iteration.

Fusion360 project included.

Version 1.1 15/06/2018

Rounded the threading inserts a bit for even easier fitting.