This model I made to test out different 8-inch sluice mats in a controlled setting, the header box has a ¾ inch hole in it to fit aquarium tubing from an aquarium pump.
I printed the model as the cut-up file shows and used a 0.35mm starting layer with 0.48mm after that. I used PLA to print this model and I only supported it from the bed and the supports were minimal. This file was cut to fit on a Prusa i3 Mk2.
I have included a flare for this sluice as well that can be put in place instead of the header box.
I used a 3d pen to attach the parts together with scrap PLA filament. If your looking for a good 3d pen to put prints together with, I use the SCRIB3D Advanced at this link https://amzn.to/40UYouT I have put together a ton of prints with it.
The author marked this model as their own original creation.