MK4 Filament Guide for connecting PFTE tube to extruder

I was having issues ensuring that my filament was long enough when it entered from the top of the enclosure.  This allows a PFTE tube to be connected, creating slack in the filament and ensuring the nextruder doesn't report a crash detected.

Printed in PETG with 3 perimeters and 25% gyroid infill.

I reversed the connector to allow the installation of a PC4-M4 pneumatic connector on the bottom.