Drill-Sharp Belt Sharpener

thingiverse

A versatile knife sharpener tool. This device utilizes 1/2 by 12 inch belts from another brand of sharpening system. The SCAD file can be modified to accommodate cheap air sander belts, but this has not been done yet. This tool creates convex edges on knives. When generating the angle-guides from the SCAD file, the two inputs are bevel angle and convexity. To make a convex edge, simply pick angles, then push the knife into the coarse belt until it hits the stop. The belt will curve around the edge setting a convex bevel. Touch up as needed with finer belts. I prefer to finish with a very fine belt and an angle guide with no convexity. Printer Settings Printer Brand: RepRap Printer: i3 Rafts: No Supports: Yes Resolution: .3mm Infill: 70% Post-Printing Build Remove supports and brims before building. Additional hardware is also required, including some 5/16 screws and bolts, 5/16 all thread, a reversible drill, a couple half inch wrenches, and 6 skateboard bearings. I have attached a build video. How I Designed This I highly recommend using Openscad for this project. Modifying your work will be easier later if you use Openscad from the start.