Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2914457.
Little helping knob for the Extruder Screw in 2 pieces to fit perfect that it looks like one part.
You first take the lower part and mount it together with the screw and then take the upper part and stick it on top and violá one smart looking knob.
Hope you enjoy.
If you want to have your own Name or what else on the part, let me know and i try my best.
Please use the comment section to tell me how it fits together. With my first try i had the problem that the toleranz of my A8 was not small enough to print the holes in the lower part + knobs on the upper part exactly enough to fit out of the printer. So i had to change it a little bit...would be fine if you can tell me if the tolerance is too wide now for your perfect calibrated printers. With mine it fits perfect like uploaded. Thanks