UPDATED: to allow easier feeding of filament through, now has inner guide and stop for PTFE tube.
Just a bulkhead fitting for the Prusa enclosure, to allow PTFE tube to pass through
Uses M10 4mm OD fitting both inside and out.
prints with supports, there is also a snap off support, which needs to be removed, before you can install the inner fitting.
The author marked this model as their own original creation.