Neptune 4 Pro Filament Dry Box Mount (Cereal Box)

This is my remix of the A1 Filament Dry Box Mount (Cereal Box) by Maker Maverick over at Makerworld.com.  This is used to mount GunplaMark's filament dry box design.  The original design is for the Bambu A1 and has a locking mechanism to attach to the top support bar.  But I have the Elegoo Neptune 4 Pro and this uses a 2020 aluminum extrusion top bar and also has the Z-axis synch belt running very close behind it, so the mount won't work and a locking mechanism will interfere with the belt.  

Using the basic overall design and measurements of the top portion for the cereal box to slide into, I modeled it with Fusion 360 to change the mounting system to fit tightly over the 2020 extrusion and lock in place with 3 M3 bolts and T-Nuts.  This design avoids the belt.

You can position the mount centrally (removing the spool holder), or the way that I have with the mount to the right and the spool holder to the left.  This allows both box and loose spools to be used.  If using the filament runout sensor, I do recommend moving it from the spool holder to just above the extruder in order to ease up on the tension that would be applied to the filament.  I have found that Filament sensor holder for neptune series by Gustavo_112 to be a very good fit for this.

The .3mf file is produced from the Elegoo Slicer (based on Orca).

Required Materials:
3 M3 bolts either 8 or 10mm long
3 M3 T-Nuts

 You could use M4 bolts and T-Nuts but would need to drill out the holes in the model a bit to allow the larger size.