Summary I created this part to be a cutter for small tubing like aquarium hose and bowden tubes. There are a lot of good designs out there, but almost all of them are multiple parts that require screws and nuts and springs. I designed this one to be simple, and one piece. This cutter uses standard single edge blades, like you commonly find in scrapers. As always with things that have blades, please be careful! Created with DesignSpark Mechanical, rsdoc source file included.