Back mount clamps, Printed bearings, Filament guide
thingiverse
DONT DO IT!!! Update: Extruder has to pull to much with through upper fitting. I combined by DrMcWoofies New 608 Bearing Concept to not buy some bearings. https://www.thingiverse.com/thing:4628063 After print turn, turn and turn by hand. I also used some PETG spray, that improved it even more. Also I made my own clamps to have the spool more at the back so the filament can more easliy pulled through the fitting I mounted right in the top bar (added also my first test with a guide but for high prints not good).
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