Ender 3 Filament guide w/ 688ZZ bearing mod
thingiverse
I just swapped out the original files to match my 688ZZ bearing perfectly. This bearing can take bolts up to m8 size, but m4 and m5 sizes work best when trapped between two nuts. To fix the mounted part, I used a cheap sample of PLA reinforced with acetone/abs glue because it got stuck at mid-print and printed nothing but air for 2 or 3 layers, causing it to bend slightly. Luckily, it's no big deal - I didn't feel like reprinting it because I had work to do.
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