KB Knife Sharpener/Mini Belt Sander v1.0

(Quick update 01/28/23)
Anyone stuck with or partial to 625 bearings and 5mm dowels, go check out Karlla's remix at:
https://www.printables.com/model/379740-kb-knife-sharpener-using-625-bearing-and-5mm-dowel
I haven't printed one yet, but it's something I should've done to begin with. Karlla is also trailblazing with carbon fiber bed texturing and PWM speed controllers. (See make and comments section of the parent design.)


(Summary consolidated/updated 01/15/23)

This is a mini belt sander design intended primarily for sharpening knives though it may also be OK for some light duty grinding/jewelry making/polishing, etc.). It uses commonly available 3/4" x 12" belts or leather strops. For full parts list, printing and building information as well as other details, download the instructions document (docx or pdf depending on which site you're visiting).

Since creating the instructions manual, I have uploaded some alternate versions of the motor shroud (either for individual taste or for printing with bridging-impaired materials). I have also uploaded the "improved" platen described in the manual. Furthermore, I now recommend a higher temperature material at least for the drive wheel (ASA/ABS have held up well so far under heavy usage though a reinforced material should be even better). PLA/+ should be OK for the rest of the parts so long as you don't store/use it in "hot" locations.

Over time, at the request of those in the comments section, I have…