Quick Change Spool Supports for 2020 Prusa i3
thingiverse
I like the bearing supported spool holder design but wanted it easier to change spools quicker. I have my printer in a cabinet with limited space to pull out threaded rods. This change allows putting the spool, cones, inserts, and nuts on the threaded rod, tighten it down, and ready to drop into arms that hold it securely without any risk of falling. The arms also provide easy removal. I added a small spool cone designed for spools with a small center opening, utilizing 608 bearings. If you don't use a spool cone, you're missing the low resistance a bearing supported center mount spool holder provides.
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