Sluices & Highbankers
Modular Sluice Box
Modular Sluice Box
- Difficulty
- Intermediate
- Build time
- A couple days, depending on how many pieces you print.
- Published
- 2026-09-17

This modular sluice box includes a flare, a a smooth-flow adapter, plus two example mats that I've sized for this box. You can print the shims and use them to wedge the boxes together at the joint. Glue it if you want it to stay better. I've used this quite a bit. It works well, but is a bit of a pain. Also, you may need to glue or silicone the mats in, or you can merge the mats into the sluice boxes if you want. This isn't perfect, but I've used it a bunch, and it's great because you can make it however long you want.
Printed this with a Bambu X1C.
Here is a link to a video showing this. I did make one major improvement in the model since this video. The flare had a gap where the joint for the next piece rose up. This caused the water to bubble over the top. I tried to fix this with silicone, but it just wasn't working well. So, I fixed it in the model.
3D preview
Drag to rotate, scroll to zoom.
master sluice final (STL)
Downloads
- Download
master sluice final (STL)
STL · 2.9 MB
Free for personal use. Please do not resell these files. Build at your own risk and follow local rules for where you can prospect.