Wanhao i3 Duplicator Top Spool Roller (M5 to M4 remix)
thingiverse
This thing is a remix of Wanhao i3 Duplicator Spool Holder by cyul. I have no M5 screws to spare, but plenty of M4 and M3 are readily available. The M5 holes have been adjusted for M4 nuts and screws instead. A copy of the original Tinkercad design was made and only the nut hole size was altered. Some users may find it a bit snug, but the screw can easily be pulled through from the other side: https://www.tinkercad.com/things/9VW99O1XUGz
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