helixpt

In our case without a flyback diode on the controling wires that go from the bed powersupply to the ultimaker the LCD as would go crazy as you can see and read http://umforum.ultimaker.com/index.php?/topic/2470-strange-display-after-custom-firmware-upload/]here[/url]. Just for help building an KB around issues related with heated bed.

Another one suffering for ABS printing noob-ice I'm just printing normal boxes, bellow you can see two separated attempts. I've tried bed temps from 70-130 extrusion from 240-255 diferent flow settings, turned off the fan, and nothing seems to work. This last complete print, is perfect on the higher layers but the bottom ones are incredibly strange as you may see. https://www.dropbox.com/sh/erzwmmnmc4mjmoi/B4aK5dbJJP

After a weeks work, it's solved, thank you illuminarti, for poiting us on the right direction. There was some current going back to the ulticontroler, while our bed relay was in the off position. Added a freewheeling circuit in between and its working like a charm

Hey fellows, I've just installed an custom heated bed in our "tuned" ultimaker, and compiled the custom firmware using the latest version from http://www.extrudable.me/2013/05/03/building-marlin-from-scratch/ the problem is that whenever I start printing something the LCD goes crazy, starting by messing up the simbols and then loosing the time indication etc. http://grab.by/onrM As anyone experienced anything similar?