Admittedly I haven’t put much thought in to this until now.
It seems Olivier intended to leave it up to the user’s discretion what MIDI panel mount connector is used toward the top of the panel, since the PCB is less than 3U high? It seems having one one 3.5mm jack holding the panel to the PCB would be less than ideal.
Part of me thinks the PCB could be extended upward and fitted with a through hole DIN connector that could also help secure the panel, something like this? A DIN connector in a 4hp panel also feels somewhat questionable, but scanning Modulargrid, it seems some people do it.
What is the large hole toward the middle of the PCB for? I’m sure Olivier has it there for a reason, but if it could be removed, here’s just about enough space to place a PJ301CM. Even with the ungodly large circular drill holes/vias/pads from this guy’s Eagle library. Then of course one would need a 3.5mm TRS to DIN adapter. It could also be cool to rotate this 90 degrees and make a 1U panel out of it? If this were the case I’m sure the PCB could be routed differently, utilizing the back of the PCB, in order to shrink it further?
In terms of actually making panels… I have no idea what’s involved here. I can’t imagine the demand for this would be too high. I’m willing to foot a decent portion if not all of the cost, this seems fun.
Please forgive my stream of consciousness here. Perhaps none of it makes sense. An electrical engineering degree means nothing, I really shouldn’t be trusted with circuits or other physical things. I’ll just stick to DSP and writing code.