I testet last night the motor drivers by changing them, and all working fine.
The reason for the not working Motor-Driver of the print head was the Heat sensor, (could fusion Prevent) to the Printhead, ( measuring allways 130 derees), but if i connect the Printhead sensor with the connector of Heat board it shows me 290 and higher.Its still heating untill i disconnect by software. changing the sensor, controlling the soldering and wiring shows no fault.
for me its a fault of Motherboard.
Resistance should be approx 100.000 ohm (100k) at room temperature.
If this is not the case, please check the sensor/wiring.
There is a second sensor supplied with the kit, just-in-case.
also, if i connect the connector from the Printhead sensor to the sensor of the Printboard, it shows me in the Repetier host software the right temperatur around 16 degrece …
So if we understand correct, there is no problem with the ntc sensor, as it displays the correct temperature in Repetier, when connected?
So what happens when you turn on the extruder heating?
The Problem is: Repetier shows a Temperatur around 100 to 130 degrece for the Printhead, even if the heater is glowing…The ntc is not the Problem, the Problem is the Motherboard, because it can´t send the Temperature right to Repetier Software