The original model worked great but I prefer to use the original Bambu Lab A1 PTFE Tube Connector (https://us.store.bambulab.com/collections/spare-parts-for-a1-series/products/ptfe-tube-connector-a1) so I designed this model with an offset mount. I also included a bolt with a hex opening that fits a 6mm Allen wrench to make threading the bolt much easier. This mount also allows the spool holder to be placed at a variety of angles to provide flexibility of installation as required for your specific use case. I tested it with a variety of spool types and modified the design to function with all types of spools, including ones with a recessed center hubs (eSUN, Flashforge, etc.)

***Please see annotated photos below for guidance on installation***

Important Notes:

1. Only print in PETG. I did not test the design using other filament types so proceed at your own risk. I installed and removed the model several times and it has held up well.
2. Build Plate temperature is set to 90°C for best adhesion.
3. Use lubricant on threads and for the portion of the Allen wrench inserted into the bolt to make installation easier.
4. Make certain Allen wrench is fully inserted to avoid stripping the hex opening. The opening is designed to be a tight fit since looser tolerances led to stripping out the opening.
5. A Hex Head and Round Head bolt are provided. The Hex Head bolt has flats that permit the use of pliers to install/remove if the hex opening becomes stripped. The Round Head bolt is more aesthetically pleasing.

6. Rotary Spool Holder: https://store.bambulab.com/collections/spare-parts-for-ams-lite/products/ams-lite-rotary-spool-holder?variant=40963660775539

Installation Steps: