School Of Hard Knocks

Problem Description: After setting the network information in /boot/octopi-wpa-supplicant.txt, the wlan0 card was up, but not connected. Environment: Raspberry Pi 2 Model B Rev 1.1 D-Link System DWA-131 802.11n Wireless N Nano Adapter(rev.A1) [Realtek RTL8192SU] Octoprint version of OctoPi Troubleshooting: Since the interface was up for me, it was hard to tell what the problem was other than not being able to see (or manipulate) the interface (wlan0) from ifconfig (no IPV4 address, ifdown fails, ifup fails) 1) Take down the interface with the ip command # ip link set wlan0 down 2) Observe the messages from the following command # wpa_supplicant -P /var/run/wpa_supplicant.wlan0.pid -i wlan0 -D nl80211,wext -c /etc/wpa_supplicant/wpa_supplicant.conf In my case, I was getting an authentication error. Solution: This is what worked for me, AMMV. There probably is a better way as this seems like somewhat of a hackjob, but I'm betting on Cunningham's law to ...

AnyCubic Mega-S My wife and daughter recently purchased the Anycubic Mega-S 3D printer for me for Fathers day. My daughter loves to make crafts, so I thought that this would be something we could do together and get a lot of value out of. I got the unit setup in about an hour after reading the manual. One of the challenges I found was unpacking the thing was a bit a bit much for a first time 3D printeer (is that a thing?) I was pleasantly surprised by the assortment of extra parts, a whole extra extruder, a toolset, a large kilogram spool of white PLA, and a few much smaller assortment of colored ones, wow. This is a full kit here, that's kind of neat. Construction feels solid, I'm kind of impressed by it all if I'm honest, and at this price point? what's not to like?! Level Up This part took considerably the longest. Basically you hit home, then turn off the motors and then manually level all four corners. I found it easier to start with all 4 corners, with ...