So. i made a print and everything was fine.
Bed temp 60 degrees. print finishes and everything is tip top. Then i´m going to print the next part in my project and i notice the bed temp now is only 40 degrees. without turning bed off…
now i cant get above 50 degrees at all… and that is from one print to another, without turning off bed or doing any settings… anyone had problems like this?
If you can, measure the voltage at the power supply into the controller board. It should be somewhere around 15v when nothing is going on. As you turn on more heaters it will drop slightly. if it drops more than about 1/2 volt then it is probably overloading the power supply. From the symptoms, it sounds like that’s your problem.
You could replace the stock power supply with a stronger one, or what many people do is give the bed heater its own power supply. You can find details on how to do this by searching “bed heater relay” on this site.