NOTE: This is an experimental and untested design. Permission is granted to use this "open source" design with the hope all who use it will also endeavor to improve it. Please reference this page for photos and details regarding this scrubber.

3D Printable Parts - STL files

Non-Printable Parts Two cylinders made of perforated brass sheet. The material for these is McMaster item #9360T15. Roll the perforated sheet by hand into two cylinders of 1 7/8" and 5 1/4" diameters. Roll the cylinders with about 1/2" overlap and put small pop rivets in the overlap to make a seam. Do this AFTER printing, so you can use the printed parts as diameter references. Vary the cylinder length as desired to increase or decrease Sofnolime capacity. Mine are 12" long. A backup breathing hose fabricated from "Bilgeflex" white corrugated bilge pump hose (available at West Marine). A SCUBA 2nd stage rubber mouthpiece. The white external bars parallel to the cylinders and holding them together are fiberglass structural rods, McMaster part #8543K53, drilled and with 1/4" SS threaded rod inside. A fan, for example, Delta Electronics BFB0712H (Digikey item #603-1118-ND). A small bungee cord and a couple of tiny SS screws that go through the external and internal stiffeners to hold the outside cylinder to them.