Primarily intended for our farm, where spools are hanging from the top, but you can use it even on the table with spool behind your printer, just tilt the holder back slightly.
You'll need M3x40, M3x12 screws and M3nS square nut.
The M3x40 replaces the original screw holding extruder and M3x12+M3nS are holding base and arm together.
Everything can be found in the spare bag included with your printer.
It should be a snug fit with the filament sensor, hence the slot in back for poking it out with screwdriver e.g.
V2 address some issues:
At least 3 perimeters + 30 % infill for strength.
No need for supports or brim.
The author marked this model as their own original creation.