I have a small thicknessplaner and had the great idea to plane oak endgrain. It worked, but now the knifes a dull. New knives are 25€, sharpening almost free. I looked on the Internet how to sharpen theses blades and i found a cool product from Deulen (https://store.workshopsupply.com/catalogue/deulen-sharpening-jig-for-12-jointerplaner-knives-p-4256.html).  That product looks great, but its way to expensive for me, so i designed my own version, based on that product. 

On my first iteration i had the angle not quite right, so i re designet it and i also used parameters. Now it is way easier to change things like the width, length and thickness of the knife. I also used heat set inserts and M3x10 screws to hold the knife in the jig. You can also change the hole size and insert depth to your liking.

My model is for my Scheppach HMS850 with a knife size of 210mm length, 16.5mm height and 1.5mm thickness.

Print it standing up without supports. I used PLA, 25% infill and 3 perimeters (nothing special).

Want to print and or change it? Please let me and the whole community see it and post a make.