Griffin Extruder for 1.75mm filament

Do not use this, look at my Spring Extruder, it's far better.

This was fine for the era but it's several years old, fickle and horrible by modern standards.
This is the extruder used on the Griffin Delta printer, and one without mounting ears.

It allows the use of geared and normal Nema 17 stepper motors (see the instructions for the geared stepper it fits) as well as several bowden options.

Features:
Uses little plastic
Easy to clean, exposed hob
One side allows for a fee