Prusa i3 MK3 Filament Holder arm

cults3d

This is an arm that can be printed twice--once in mirror--and attached to the top of the Prusa i3 MK3 (and maybe the MK2 series as well) that will allow you to store up to three roles of filament on top of your printer at once. All you need is a 12 inch steel pipe and end caps for it. The pipe goes through the first arm, then through the second arm, with the caps screwed on the ends to keep everything in place. Make sure you print one normal and one mirrored, so you can put one on each side of the printer, and then slide them outside as far as they will go. Also, you will probably need to rotate the model on the bed of your slicer to get the flat side down, and you'll definitely need to print with support. They are a bit loose, but that allows you to get the pipe in and out easier in my opinion.