Hydraulic press brake control

If I didn't look at the second picture I didn't have a clear idea on how to make the steppers interact with your valves, they are mechanically driven like a joystick right? Y could move them in portions or one way or other. But with the motors they are electronically regulated. Which is so, so nice! also the clean and direct way of doing it. Is SUPER! Even if you don't have a proper feedback to know if both hydraulics go down exactly as they should. You could even use a g2 timing belt as a rack and small pulley with a DIY encoder disc to count movement.
Thanks to your photos I have many ideas now.

I just arrived but I just fixed a new Chinese 12 feet CNC press brake, and I have to say the control box HMI and the motor pump is very clean installation. The one that I fixed was 120T. I recommend you to build your own from a 5-10HP motor low speed, buy the oil pump, just the cylinder block. and connect 1/2" hoses to your reservoir. The already made will not have what it takes to be sufficiently powerful to be happy with repeatability.

David-Diy - possible to put here some photos/videos showing your brake?

Yes I will, I did take some photos and know what's the system PLC/System they use, I'll have to come back I hope later today to upload some photos about it.

Hi, kind of a late message but I am in the process of retrofitting an old hydraulic press brake. Currently, I'm looking to buy a hydraulic proportional valve for the cylinder. Do you have any tips for this purchase? I really appreciate any advice. I am a bit intimidated by this project.