Yet another Original Prusa i3 MK2 Spool Holder

My take on a quick and easy spool holder for the MK2.

For a simple replacement of the stock parts, just print the arms and one rod and you're ready to go. As simple as "put rod through spool", "drop rod into arms". Even when you have different spools from different brands that are different widths it's still just drop-in and print.

For more advanced usage, as I've got installed on my MK2, print two sets of arms and one of each rod. If your spools are as narrow as the ones I use, you can