Tiny tabletop hydraulic press - video

Tiny tabletop hydraulic press. By Michel Uphoff. 20:19 video:

https://www.youtube.com/watch?v=lBEdwYtpet0

I have no doubt that your axial-plunger-pump will work. But I would fear the friction between plungers and the swashplate; and the complications from hardening.
Easier to manufacture would be a radial-plunger-pump; excenter-driven.You will need some 'special' valves. Look for priceworthy italian ones, and very compact SUN (great support). Looking forward to your next accomplishment. And thank you for the music.

Part 2. By Michel Uphoff. 31:51 video:

https://www.youtube.com/watch?v=hSinoVfr-YY