Rotary Knife Sharpener

thingiverse

Videos: https://youtu.be/URsd0BOjRDc https://youtu.be/BI7SPk3PUgo Warning: This design is rather weak, because of ABS. Maybe with PLA it will be more solid. If you want precise sharpening, you may like http://www.thingiverse.com/thing:1622145, which is not so comfortable to use but much stronger and more precise. Anyway, if you're not satisfied with this design, you can print the base and legs from http://www.thingiverse.com/thing:1622145 and swap it out for your sharpener. UPDATED 07.07.2016: Replaced 2pcs Wear-Resisting SF-1 Self Lubricating Bearing Bushing with 1 LM8UU bearing, changing the Y-axis part in the process. To create this thing, you'll need to buy: 1pc Ikea immeln hook and remove the metal part (hook itself), which has great suction cups for gripping the desk. 1pc 8mm L200mm + 1pc 8mm L500mm smooth rods, similar to those used in 3d printers. Rod length can vary slightly. 1pc ~30-50mm length spring with internal diameter 8-10mm. I didn't buy this one because I took it from my old Apex clone from aliexpress. 1pc LM8UU bearing 2pcs F624ZZ flanged bearings (4mm x 13mm x 5mm) 4pcs F608ZZ flanged bearings (8mm x 22mm x 7mm) 4pcs N52 12mm X 2mm Super Strong Round Disc Magnets Rare Earth Neodymium magnet 3pcs M5x30-50 bolts and nuts 1pc M4x30 screw and nut 2pcs M3x10 Hex socket screws 2pcs M3x15 Hex socket screws 7pcs M3x20 Hex socket screws 9pcs M3 nuts 2pcs M3 self-locking nuts 1pc M8x40 bolt/screw + M8 nut You'll also need to buy Sharpening Stones from Apex, like this. In the future, I plan to make stones by myself using printed blanks, glass, and sandpaper.