Traumflug

The surge is a difference between laptop behaviour and controller behaviour. Both are fine on their own, but together it sometimes doesn't work out. See "ground loop USB": http://forum.arduino.cc/index.php?PHPSESSID=mvvkk4ra33taduic3ciikboe22&topic=64948.0;nowap http://www.kvraudio.com/forum/viewtopic.php?p=3254930...

> After replacing the capacitors on my Gen7 board with 3300uF capacitors, the 12V rail now dips to 11.7V under load, and the 5V rail does not dip at all...

Interesting observation you did, nobody noticed this so far. There's another diagram, one I actually maintained over the versions: http://reprap.org/wiki/Gen7_Board-AVR_1.5#Pinout It apparently matches the diagram in your third link, the...

Not surprising, the stuff coming with the Git repo is the latest Gen7 Arduino IDE Support and looking at http://reprap.org/wiki/Gen7_Arduino_IDE_Support , it's compatible with Arduino 1.0.3 and later, only. Older...

Not so sure on this one. If there are noticeable voltages to regulate down, this Zener diode is target for unlimited current and could easily play "glow in the dark"....

Feel free to solder such a Zener diode onto your board and measure wether it gives an improvement. Adding something just because it could improve something which isn't even a...

This topic comes up every now and then and the answer is: these two wires of the ATX4 connector are specified for the same current as the one of the...

Discussion follows in the RepRap wiki: http://forums.reprap.org/read.php?181,134736

Looks like all 5V stuff gets it's current over USB?

Tim Schmidt wrote on reprap-dev: Something like this: http://www.mouser.com/ProductDetail/Kycon/KLDX-0202-B-LT/?qs=sGAEpiMZZMu2f9RNbWupYqEL24rEplS96yocbOquTnM%3d There are a whole mess of them here: http://www.mouser.com/Interconnects/DC-Power-Connectors/_/N-womu?P=1z0vlpk&Keyword=power+connector&FS=True