Small hole spool spigot for Prusa i3 MK3 Spool Holder
thingiverse
The standard spool holder that comes with the Prusa i3 MK3 fails to accommodate spools featuring narrow or small holes in their centers. You can easily replace one or both of the existing holder spigots with this design, thereby allowing you to utilize spools boasting small holes similar to those found on the Sainsmart TPU filament. Spools with holes as tiny as 28 can be perfectly utilized with it. Note: To ensure a secure connection, print two lugs and set the infill to approximately 70% for just the lugs. A considerable amount of strength is required to connect the new spigot and twist it into place. I employed PLA for this project and found it satisfactory; however, ABS might be an even more suitable option.
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