Cave diving line cutter

thingiverse

This is a portable cutting device with two versions of holster (one for securing onto a 2-inch belt and another for hanging using a 1/8 inch shock cord). Instructions: The cutter is designed to be used with half-inch by twenty-five thousandth-of-an-inch wide handsaw blades, its about twelve times point six five millimeter. The blade length doesn't matter as long as you can break off a piece approximately two inches long. Sharpen the blade on one side, then cut it to fit inside the cutter (it goes all the way up to the end of the view port on the side). Grind to round out the ends a bit. Saw through the perimeter in the middle of the cutting head and push the sharpened piece of the blade through. It will be a tight fit so you may need to work it in place, then carefully pry away any remaining plastic that obstructs the entry point. A low-quality handsaw blade is adequate for this device, however a corrosion-resistant stainless steel blade like those used in butcher handsaws would provide even better results. Printing instructions: print using ABS filament and adjust the infill perimeter overlap setting to optimize performance, since there are areas where only a single perimeter wall will support the load. Small nozzle prints will likely be more effective, though slightly wider nozzles can also work with adjustments to ensure proper adhesion at these narrow points.