I removed the printhead cover because it is bulky and obstructs the view of the nozzle while printing.
Printhead with my PTFE connector (mounted with double sided foam mounting tape)
Connector unscrews if needed to allow manual filament loading
The parts
Here’s a connector for mounting through the wall of a drybox
The white parts are seals printed in TPU and the gray are Elegoo translucent petg which unfortunately didn’t photograph well to show the thread quality. The threads are robust, sufficient to crush the PTFE tube if the compression nuts are over tightened but they only need to be tightened enough to secure the tubing.
I’ve just started using it but am happy with it so far. If no issues arise in the next few days I’ll post the design to a print sharing site and link to it here.