The original model's external spool sat a little too low for my preference and would sometimes interfere with the cable and PTFE tubes when the toolhead was near the top of the Z-axis, so I modified the original model to extend 65mm taller. This unfortunately makes it too large to print on the A1 Mini but can be printed on a Bambu Lab X1C, P1P/P1S, or A1 (or any printer with a similar build volume).

I have over 100 hours printing with this addition and I can confirm that it has zero impact on print quality. Recommend printing in PETG.

I also removed the modifiers from the original model and made the hole for the PTFE tube permanent.

The PTFE tube holder can interfere with the toolhead cable so I recommend either:

1. Route the toolhead cable behind the Z-axis upright

OR

2. Print the models in this profile to keep the cable routed away from the upright: https://makerworld.com/en/models/436575#profileId-341729