This support is designed by Joaquim Figueiredo from our team evolt.pt , to reduce the space occupied by the 3D printer without the AMS.
The idea was taken from the A1 mini back spool holder.

It's very easy and quick to install, you just need to use 4 screws left over from mounting the A1 printer, you don't need to buy anything to make it work.
 

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NEW UPDATE INFORMATION REGARDING THE LACK OF SCEWS:

The dimensions that Bambu use for the scews are Allen M3x23mm , so you can buy a set of 4 screws  like these or if you cannot buy then buy a set of M3x25mm and cut them to length.

REV.01
Added the files V2 , with more one screw hole to make it stronger (you will need 4 screws in total ).

Procedure:

1. Print out the model and Remove the supports and get the 4 screws left over from mounting the A1 printer.

2. Install the filament holder that comes with the printer and place it on the printed part with the following orientation.



 

3. Tighten the cover with 1 screw. The hole is self-tightening in the plastic, so some force is needed to secure it.

4. Now it's time to attach the part to the frame, using 2 screws, as follows. The holes are self-tightening in the plastic, requiring some force to fix.

5. If you are printing tall parts and want to use PTFE tubing, you can add PTFE tubing to suit your taste, we suggest 70 to 80 cm.