One of the pillars of the design is the 'utility closet'.
When I started considering this design, I thought the computer would occupy the entire top section, make use of the vent, and hold a display. But that idea forgot how nice it'd be to have cold things, and keep leftovers. Fortunately my plans were over-ruled and it became another clever design I didn't make. Let's start at the bottom.
The Battery Bay
We start with the battery bay. It stores up to three batteries mounted to steel bus lines. The power converter turns 'shore power' into a smart charging power, and puts it on these bus lines. The power converter is RV-intended, sensitive to heat, cross-polarity, even a shorted battery. It's likely the best $80 I've ever spent. And while they don't even know I have one, it comes from this great company.
Notice how the fresh air (here, round and white disks) enters this section, which may get warm, and has holes to vent it upward. That much has always been part of the design.
The Microwave Bay
I have a tired old microwave that an employer was going to throw away during a break room conversion. It's a simple thing, just the way I like it. And it's been running for a couple of decades with no signs of slowing down. Until it decides otherwise, it'll be the first microwave to inhabit this bay.
On the doors are frames intended to hold soap in the shower. You can get them at Walmart, currently. They hold the plastic utensils and sugar. And yeah, that blue network wire will soon be removed, routed through the lower bay along with another 110V power line.
When both doors are closed, the entire thing is low-profile. When it's opened, it demands I clean up my mess. I like self-convincing states like that.
When I'm on the road and don't want to stop, a bowl of oatmeal is an easy choice. I have plans for a can dispenser of some sort, but it's not here yet.
And here's the front view of the microwave bay. The table holds it up to make room under it for various things. But it's temporary, and will likely be replaced by the can dispenser. I've looked into some plastic ones, but they're designed in a way that's not space-saving.
The strategy is to loiter on the edge of a city or other area; not boondock in the middle of nowhere. Those places tend not to have any jobs or internet. I suppose this vehicle's design is that of a social surfer. As such, it's assumed I won't be far from a grocery store or similar. When I'm actually on the road I intend to eat out a lot, with breakfasts and most dinners to happen here.
Notice again how the heat from the bottom enters this area and continues up to the next bay.
The fridge bay
This bay is mostly unremarkable right now, providing a storage space for the tools as I work on other things. But this area has a vent in the back (not shown), and the sensor network hookup on the forward side, as well as a control panel.
The vent is the culmination of the battery and microwave bays. Fresh air coming in the bottom winds it's way through the lower bays, warming as it goes, passing the fridge and exiting the vent under program control. At 80 degrees, Tripstar vents this 'room' taking the heat with it.
The control panel
This space also permits me to keep an eye on things, right at eye level. Again, not my design, but a really good one. The photo shows a panel under construction. When it's done it will be a landscape photo of Chicago at night, with grey spots marking where the buttons and LCDs will be. This is because I'm using two-layer plexiglass covers.
The design idea comes from a very clever fellow who found a great way to create panels like these for his mega-flight-simulator. He was working to make them look like fighter cockpit consoles; I just want mine to look pretty and different.
The control panel permits me to kill all 12V loads in case of a fire, with the exception of Tripstar, whose job it is to monitor the batteries. The 'big red switch' allows me to cut off the lights, fans and other loads in case I need to park it for a long time, or shut off the power in a fire.
The next section shown here in black, monitors the three main 12V busses with cute little green LEDs. It will let me know when a bus has had a problem and lost power.
The next section is an LCD panel for Tripstar. Here I can see not only inside and outside temperatures but humidities, time, and (one day) weather notices too. And yeah...one day it'll have a pretty, probably smoke-colored bezel around it. Right now I'm just happy it's working properly and keeping me informed while I work on the other parts.
Also notice the large, long section covered by cork. This area is actually done. Another not-my-design, this area lets me post papers of importance, again at eye level, right there where I'll see them. It's already paid for itself in reminding me to keep meetings and stay on-track. The back will eventually be used for storage, but it's not been a priority. Under this corkboard is the clothes closet, in another article.
Summary
This one section of the trailer touches on most other commonly used parts. What started out as a tiny closet, morphed into a computer closet has blossomed into a clever design that meets a lot of needs.