@Pauric_OCallaghan Thanks, the only interface design background I have is self taught, so I’m glad that I seem to have managed that somehow, a usable interface was one of my goals. Regarding your state issues, that sounds weird, if it happens again please give me a shout!
@Anthony_White you might be happy to hear that I recently ordered an sd card add-on I hope I’ll be able to get to work with my Ultimaker to work on exactly that feature.
Regarding those freezing issues, I just remembered something I encountered myself quite early with my Pi… do you @Anthony_White and @Pauric_OCallaghan by any chance use a powered USB hub and a USB wifi dongle for accessing the Pi? I seem to remember that my Pi “froze” from time to time as in it didn’t answer via Wifi anymore and the whole USB stack broke down, but it was still up and running in principle. I googled around a bit, checked syslog etc and after a time came to the conclusion that the ethernet port (which internally is connected via USB) was acting up and flooding the whole bus with nonsense thus shutting it down (syslog was flooded with messages from the driver). Since I don’t use the ethernet port I have disabled the corresponding module on my Pi (“echo 1-1.1:1.0 > /sys/bus/usb/drivers/smsc95xx/unbind” on bootup, or rather the init script I found at http://raspberrycenter.de/handbuch/deaktivierung-netzwerkschnittstelle) and haven’t had any problems at all since doing so… I also changed some stuff in my bootup options, I can look those up if you want.