I’ve used this knife sharpener that I printed for a few years now. I thought that it was based on the Russian designed TSPROF, but in looking through the history it looks very similar to the USA Edge Pro Inc Apex designs that goes back to the 1990’s. The angle isn’t quite holding like it used to. I’ve got a lot of ideas for my own model, but for now I’m going to print some spacers to help get repeatable angles.
setting the angle on my sharpener
Where I want to place a fixed height collar
| 16deg 31.5mm |
|---|
| 17deg 34.8mm |
| 18deg 38.0mm |
| 19deg 40.6mm |
| 20deg 43.8mm |
| 21deg 47.4mm |
| 22deg 50.2mm |
| 23deg 52.0mm |
| 24deg 54.3mm |