extruder stopped giving a filament, I connected it to another axis and it works, I also connected the motor from the Z axis to the extruder output and the motor does not work or is it damaged the motherboard?
You need the hot end up to temperature even when trying to run an extrusion with no material, the reason for this is in the firmware is a cold extrusion protection value. If the hot end is not up to temp then there is no signal sent to the motor. I see from the video extruder or hotend 20°.
// @section extruder
// This option prevents extrusion if the temperature is below EXTRUDE_MINTEMP. // It also enables the M302 command to set the minimum extrusion temperature // or to allow moving the extruder regardless of the hotend temperature. // *** IT IS HIGHLY RECOMMENDED TO LEAVE THIS OPTION ENABLED! *** #define PREVENT_COLD_EXTRUSION #define EXTRUDE_MINTEMP 170
So you can see it here, run at temp and try again, motor will run.
There is no problem with your board, it is doing exactly as it should and obeying the firmware command, PREVENT_COLD_EXTRUSION, with no temperature at the hot end then no signal is sent to the driver. I have run this test today myself and with a temperature below 170° dialed up the stepper motor will not drive. Refer to your temperature settings as captured from your video.
thank you for your answer and help, you have helped the printer work properl, I did not know that the low temperature blocks the extruder.
Glad to be of service, don't forget clean the nozzle when you change filament, those 0.4mm drills are awesome, have saved me a lot of problems, again cleaning the nozzle needs to be done at temperature. In fact a little tip run autotune PID, change filament and clean nozzle all at the same time, works a treat believe me.