[Updated] Tom's easy spool holder with 8mm rod for Prusa i3 MK2 (or Plus) V3

Yes, another i3 spool holder…But do you need to quick swap different spools with 1.75mm filaments? I like the simplicity of the original Prusai3 Plus/MK2 spool holders, but I refuse to move it along tight dural frame with every different spool width. If you have some old/spare 8mm rod (156mm or longer), my design is directly for you. Simply lift the axis and change the spool with filament. It is suitable for the original Prusa i3 Plus/MK2 with dural frame or clones. No bearings needed at all.