Assuming every hinge there is motorized, that’s 6 servos. That looks like a nightmare to calibrate, which it will need to do a lot of if it’s shoved in some backpack for travel on a routine basis.

And the print head looks like a bitch to take apart to service if you get a jam.

Honestly it’s a cool idea to have a portable printer though, and it could be achieved but just differently.

Like what if you just took the basic design of a normal 3d printer, but made it snap apart and back together, and then made those pieces fit into the briefcase?

You’d just need two vertical pillars, one horizontal rod. Then the print bed itself could move in either the x or y dimentions since the print head would be stationary in one direction.

Hope that makes sense but in my head this solution is way more practical even if you needed to do a calibration after each setup.

Have you seen the Positron printer? Fits in a filament box when it’s folded up, and takes just a few minutes to assemble. It’s a very cool design.