A heavy duty filament guide for the Ender 3, with rollers. Keeps filament in ark and running smoothly. works better with bottom roller guide.-
Update: Redesigned bottom pulley guide, Added snap adaptor for cable chain to take https://www.thingiverse.com/thing:2920060 , and filter holder
Updated cable chain adaptor to line up better, especially when printing tall items, easier printing
Added Guides as the new cura's retract to much and filament drops off rollers
Prints flat but needs support in frame sleeve.
Printed this in fine mode .1 mm for greater accuracy for pin holes. it may work in other settings.
Print pins with 50% infill for strength
Rollers no support, once printed push sideways to release, roll them for a few min to free up, used some vegetable oil to lube them.
printed rollers work but not as good as proper bearings.
Manufactured new pins to fit normal 608 bearings u pulleys - get them at any hardware shop or on line like these .https://www.ebay.com.au/i/332805462157?chn=ps
Added redesigned bottom pulley guide for easier printing, which attaches to the 2 small screws on Z axis rod, and on the Z axis guide wheel. the holes on bottom plate are for an inline filter.
Print roller arm down - no supports - some cleaning required on end for z axis rod end due to droop.
Cable chain adaptor - print flat - no supports - clips into Bottom pulley guide and fits into https://www.thingiverse.com/thing:2920060 cable chain-
Filter Holder - latest addition - print face down - supports included in design , just cut off when printed.
Added top roller guide and a set of smaller diameter pins for 608 bearings - smaller on bearing end. and another set of pins with smaller shaft ends for those who have had difficulty putting into frame.
top guide with plastic rollers
Bottom guide roller with plastic roller
Bottom Guide with 608 bearing U pulley, Filter & Cable chain adaptor.