This design was designed for when you are going to print in two colors. Adds convenience to changing filament without having to disassemble each spool when changing color.
Change the old reel holder magic for this improvement, reusing the grip knob.
On the other hand, it can be used to improve 2 independent extruders and a bi-entry hotend type Cyclops/Toriply or similar.
I only tested this tool for the Ender 3 V2 spool holder, but it may work for the entire Ender 3 range, or similar spool holders.
Parameters
This tool is designed to be printed vertically with little use on supports, but the filament must have good adhesion between layers.
Size: 36x36x207 cm3
Model without cuts:
Cut Model
The author marked this model as their own original creation.