This is a modular spool holder for the A1 Mini that can be mounted on top of the Z-axis to reduce the overall footprint of the A1 Mini since the original spool holder requires a lot of space, especially in depht.
The holder consists of the top module wich can be mounted on top of the Z-axis by removing the two top pieces and by reusing the original screws to mount the top module.
The thing that makes this holder modular is that you can choose wich Spool Holder you want to use.
You can choose from the following three:
You can install either of these variants just by pressing the holder inside the Top Module, so its easy enough to insert and also swap if you need.