I needed a box that would sit behind the Elegoo Centauri Carbon 2 to collect the poop from the excess chute.
The box needed to:

1. Provide easy access to the power button.

2. Not sit on the power cord (the power cord should fit under it)

3. Be stable

4. Be easy to empty

5. Hold a good amount of poop.

I have tried using poop chutes and with some of them, the poop would get stuck on the chute, back up, and eventually break the tool head off.

I printed this on the Elegoo Centauri Carbon 2 using ElegooSlicer (using some of the Advanced settings as it was hard with tree supports to remove the supports).  The 3mf file is for ElegooSlicer to print on an Elegoo Centauri Carbon 2.  I went through multiple revisions of this until I found the perfect box for me.

• Strength - Sparse infill pattern: Gyroid

• Support - Enable support

• Support - Type: Normal (Auto)

• Support - Base Pattern: Hollow

• Support - Base Pattern Spacing: 2.5mm

• Others - Brim Type: No-brim

This model was uploaded to https://www.thingiverse.com/thing:7323349 some time ago by myself and is the #2 box there (dad joke about a poop box).