Anycubic i3 mega filament support
thingiverse
For me the best filament support out there is a remix from https://www.thingiverse.com/thing:2582052, and I also used the big nut of https://www.thingiverse.com/thing:3786473. You'll need 1 8mm threaded rod for the filament support shaft and 2 608zz bearings. I've added a larger nut from a remix and a supplement for the other side. The setup includes a camera mount with GoPro hitch, a separator for the extruder in case the filament is too close, and a modified printer side support to thread the rod.
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