Look at the shaft that drives the filament up into the tube, it is knurled so that it can grip the filament. I assume that's what you're seeing. (and yes, it's normal)
Yes, it is knurled. Figured it didn't matter since my prints were coming out fine.
Thanks Robert! Btw, those two guides you made have been immensely helpful for this newbie. I owe you a few beers! :mrgreen:
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IRobertI 516
Look at the shaft that drives the filament up into the tube, it is knurled so that it can grip the filament. I assume that's what you're seeing. (and yes, it's normal)
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