Heatbed heat test calibration failure
All other hardware passes just fine, first layer calibration is great. But the heatbed just doesn't get up to 110c as fast as expected, which results in a failure. This is with the new heatbed from Prusa, and everything is installed correctly. Any idea on what may be causing this?
Thanks!
RE: Heatbed heat test calibration failure
Is the power supply voltage good?
Low voltage would cause slower heating
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Heatbed heat test calibration failure
Seems to be totally fine. It *is* the silver PSU, though.
RE: Heatbed heat test calibration failure
Are sll of your heatbed connections tight?
does your heatbed have screw terminals at the heatbed end of the power wires?
If it does, do you have the washers in the correct positions?
If the washers are in the wrong position you will get a high resistance connection
https://help.prusa3d.com/guide/6-heatbed-upgrade_617239
also check that the Thermistor, is securely attached to the underside of the heatbed, if it is loose it will falsely report low temperatures.
on the Mk1 printer, many years ago, I Adjusted the voltage a little using the small variable resistor on the Power supply printed circuit board. IIRC I raised the voltage at that time to 13.8 volts because the heatbed could not reach ABS temperatures a slightly higher voltage may help you reach temperature, Faster
My mk3.9 also has a silver PSU.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK