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Printing fan speed changes
Printing fan stops for a while and start againe. It occurs so quick that fan does not stop but only speed slow down. On a voltage oscilogram (PWM wave) I see that voltage drop down for a while. It's repet all the time. My fan is orginal Prusa (5V power supplay). The problem occurs between speed M106 S1 (gcode command Octoprint terminal) - M106 S254. No problem when the speed is 100% (S255) and 0% (S0).
Fan speed changes (I can hear it). Does PCB has broken down? Why PWM signal drops to zero (disapears)?
Posted : 13/03/2021 8:18 pm