Hi i have ramps 1.2 with sprinter FW and repsnapper. (Latest build compiled in ubuntu 11.4).
Everything looks fine except heating of extruder. After i switch power supply, extruder strats heating, completely ignoring preset values.
M105 returns temperature fine.
M104 S200 looks responding too.
In Printer controls table is preset value 25°C for extruder and bed and, even if i change it, after few seconds repsnapper sets 25 again. "Heat on" does not look to do anything (exceps button become little more grey).
I can read current temperature by using "manual" M105 command but repsnapper do not show it enywhere...
Any advice?
EDIT:
tried changing pin 10 to pin 9 (if mosfet is dead) -> same problem
Extruder stays cool, untill i set some temperature or hit "heater on", after it, extruder do not stop heating even if target temperature is reached and only way to stop it, u need to turn power supply off....
Edited 1 time(s). Last edit at 06/30/2011 07:12AM by oz.