Ignoring that absolutely terrible joke, I've managed to make some progress. I have an actual laser cut, acrylic encased HMI panel now, which is at the angle of the original one. And I must say, with red acrylic and some gold ink in the engraving, I think it looks quite sharp. Now, it's not quite ready for prime time. Biggest issue is that the front needs to be somewhat longer, so I can fit a lower nut pocket in on the left side. There are some small issues with the keystones, and I need to clear those up before I'd consider releasing the files. But you can find a few pictures below in the spoiler tag
I've also opened up the printer for some more cable management and clean up, in addition to installing the three new relays that I'm adding to the heated bed power path. Starting from closest to the Duet, we have a large 25A mechanical relay, which has the unenviable task of shutting off the power should thermal fuses under the bed blow. It gets it's own dedicated power tap from the internal PSU. Next up, we have a 15A rated DPDT relay with a 24Vdc coil that will when the external PSU comes online, switch the Duet automatically to driving the SSR that switches the 24V power, which is the next in line. But that 25A relay is also going to be switching off the 24V power if it should trip, as it has sufficient capacity, and two contacts. That means that even if the SSR fails, the bed can't go into thermal run-away.
I've gone ahead and built the external PSU into a fairly user-friendly unit. I'm using a Meanwell SE-600-24V supply, with nice thick silicone jacketed wire coming off it and going to Powerpole 30A contacts and connectors in blue and white to differntiate from the 12V and 5V that may be turning up in the printer. I've decided that the hotends at least are getting power pole connectors. So light and convenient, it's hard to say no. I went ahead and tossed a IEC connector onto the input side, as well as a switch, so it's easy to work with. The venting isn't compromised by the endcaps, but they completely isolate any live contacts. I haven't hooked up the remote sense or anything, but as the endcaps are slip on/off (Using a bit of tape to compensate for it not being completely close), if that's needed I can.
Beyond that, cable management is the bear to wrestle now. I want more air-flow through the base, and less random crud. I can fairly quickly reduce the amount of wiring in there, especially if I pull the contacts I don't need out of the modular supply cables. Since I can re-use this one with the hot spare, and return it for warranty work with the hot spare's cables, I'm unconcerned by the pulling every cable I don't need, and as I can do it at actual contacts rather than cutting and capping wires, I'm perfectly happy to do it, and the tool to do it right arrives tomorrow.
Few last things in this update. I went ahead and ordered a Volcano PT100 block, and the other parts to make my volcano nozzles into a fully fledged hotend. We also think we tracked down the issue with our Rambo board to a busted reset switch (Both audible and multimeter observations tell us it never opens properly), which we've thinking about removing. I'm also seriously considering testing a water jacket on the secondary heatsink, since I'm not planning to use it soon. If I do go for that, I'll be running trials with the pump and the rest of the loop running 24/7 in a bin for at least a week, to make sure no leaks develop. I've also reached out to Matt at 713 Maker. I have an aluminum effector platform I picked up at the maker faire, and have a quote from him for curved panels for the machine. He's also working on a quote for FSR holders for me. I'm hoping that he gets that sorted soon (I didn't exactly make it easy for him, since I didn't have a drawing or step file for precisely what I wanted, and I figure he's pretty busy lately with his gorgeous new all-metal Folgertech work, and getting the effectors ready to ship). I also asked him to consider machining a pair of flats into the stand-off end caps that you could fit a stock E3D nozzle wrench into, as I've marred one standoff, and cracked the epoxy on another by doing dumb things. That isn't to say his stuff isn't great. Quite the opposite. If I had I problem I couldn't deal with myself with his stuff, I'd happily buy from him again.
I also got a good look at Proto's V1 today. It had power when it left, and I must say, the original builder was a little bit nuts, but very capable. It's one of the few things I know of where not only is 5VSB used, but so is PWR OK. So that made for a fun bit of wiring, as we added some spade terminals in so that if there's a problem again we can get it fixed. Hopefully both his and my machines are back in service at the end of the week. I do very much like the way some of the add-on's were done, and while I like the hinged side panels, I think the more open interior space and less wiring restrictions really make the V2 more amiable to the sort of idiocy I've been doing (Did I mention I plan on mounting one of my three relays hanging from the top of the bottom compartment?. Gotta love how wonderfully crazy that space becomes, and how much good cable management opens for other parts)
While I have it open and out of service, I'm also going to be running the basic cabling to the Duet for the chamber temperature sensor and relay. Slowly but surely each portion of my monstrosity is reaching it's final stage. I suppose I should get back to work on designing it's successor, as well as either a small (Say, 8X8X8 build area) cartesian machine for multi-extrusion, or a tool changer and print head for an X carve or other CNC mill, depending on which one interests me more. Gotta have something to waste time on sketching out in the middle of class, right?