My maximum capacity bin design - internal dimensions are 108mm wide x 76mm deep x 122mm high for all the "extra" poop that may happen when using the Canvas with the Elegoo Centauri Carbon.

I previously had a different poop chute with a drawer that came out to the right on my Elegoo Centauri Carbon (ECC1)  So, when I added the Canvas multi-color system the old chute interferred with the cable.  I was inspired to redesign a bigger, better, model with a similar look but capable of handling the extra waste from all those filament changes.  I also didn't want it to interfere with the cable connecting the printer to the Canvas unit.  The right-side drawer wouldn't work due to the cable and spool#3 and a left-side drawer wouldn't work for my workbench and printer location so, I went with a back-door drawer design approach.

Mounting:  Loosen the lower two poopchute attachment screws enough to hang the chute case, then retighten them.  You will need an M3x8mm machine screw if you want to use the lower mounting lug.  It will attach to the back-plate bottom-center screw location.  Get that screw thread started before fully tightening the hanger-hole screws.

I designed this poopchute entirely in TinkerCAD.  Mine is printed with 3 walls, 15% gyroid infill using Sunlu PLA+2.0 filament on my ECC1 with Canvas.   I did use supports for upper portion of the chute and the handle on the bin.  I had an afterthought as the bin was printing to embed magnets to help keep the bin closed but I didn't want to start over.  I sliced the project in Orca 2.4.1 and the orientation of the objects in the 3MF file should yeild the minimal amout of supports needed.  I'm sure most filaments and your desired settings will likely work fine for this.

I hope you enjoy your poop and Happy Printing!