Knife sharpener

This sharpener is designed for printing on a 3D printer. Angles of sharpening from 12 to 25 degrees on the side. After 3D printing, ream the holes with a drill 8mm. If you do not find a spring, print "spacer" file (instead of 2pcs "Springs_holder").

To make that thing you need:
1) 1pcs Laminated resin-bonded chipboard 400x200x16 mm;
2) 1pcs Stainless steel round bar 8mm L=700mm. On the one hand it needs make a thread M8x1.25 L= 30 mm;
3) 1pcs Stainless steel round bar 8mm L=120mm. On the one hand it needs make a thread M8x1.25 L= 20 mm;
4) 1pcs 8mm right hand female thread metric rod end SI8TK (for example
https://ru.aliexpress.com/item/SI8T-K-PHSA8-8/32679845372.html);
5) 1pcs Pressure spring inner diameter 12 mm, wire diameter from 1.5 to 2 mm;
6) 2pcs Neodymium block Magnet 20x20x5 mm;
7) 4pcs M4x20 Head pan screws + Nuts
8) 2pcs M6x20 Hex head cap screws + M6 Wing nuts
9) 8pcs Pan head Self-tapping screws DIN7981 st3.5 l=22 mm

if you need source files, you are welcome here: https://grabcad.com/library/knife-sharpener-4