The official marlin-based firmware also "only" goes up to something like 200mm/s and 3000mm/s^2 for my model, but I've flashed klipper on it which has given me more control so I wasn't constrained by the limitations set by the manufacturer in the firmware.
I was able to push it to 500mm/s print speed and 11000mm/s^2 accelerations, but small details started to suffer and I was getting too much ringing. For simple large prints I still use it though if I need a quick-ish prototype.
I'm not using an ender 3 v3 se, but a bedslinger from anycubic with similar construction, and I'm running 300mm/s max print speed and 9000mm/s^2 max acceleration with consistent decent results.
A cubic meter is just a whole lot of volume for incredibly little power. A regular 80Ah car battery has almost 4 times the power capapcity as a cubic meter of this.
On a laboratory bench in Cambridge, Massachusetts
For now, the concrete supercapacitor can store a little under 300 watt-hours per cubic metre
OK then, so this is incredibly far from being near any real world application
Mini PCs have the same level of software and driver support as any desktop PC, so probably even better than raspi.
Not sure what a pi4 uses, but my NUC (16gb ram, 1tb NVME, quad core i3 up to 2.4ghz) running my smart home (HA in a VM) and a few other small services in LXCs uses ~7W on average. Loads more compute power if I need it at half the price. Even if a pi4 draws half the power, that's only $8 saving per year.
Fuck, this is seriously bad news
Think of how well people treat public transport they all depend on...now that place is your car and people are alone and unsupervised. You're going to spend a large amount of time and money keeping the car from being a trashed mess.
The IT department are the morons enforcing that shit.
In many cases there simply isn't an alternative to windows. I work in industrial automation, and the software and tools we need only run on windows and there is no change to that in sight. We unfortunately just have to cope with this. What I think is, that enterprise OS versions will be able to disable this stuff entirely because it's a major issue WRT things like customer sensitive solutions.
Using a V6 style hot end with 0.2MM brass CHT nozzle. According to the flow test method CNC kitchen uses I max out around 54mm^3/s @220°C. I can only print that fast on larger prints though because my cooling can't keep up on small prints.