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davidramiro / Marlin-Ai3M-2.0.x

🖨 Marlin 2.0.x optimized for the Anycubic i3 Mega 3D printer
GNU General Public License v3.0
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[BUG] Hot end fan runs only at 100% #22

Closed gmag11 closed 4 years ago

gmag11 commented 4 years ago

Bug Description

Does hot end fan support PWM control? It only blows when fan speed is set to 100%. In any other value fan keeps stopped.

My Configurations

Marlin.zip

Steps to Reproduce

  1. Use slicer to configure fan to be active at different speeds
  2. Send gcode to print

Expected behavior: Fan should adapt its speed to setting

Actual behavior: Fan works only if speed is set to 100%

Additional Information

Fan I use is a 5015 like this: https://es.aliexpress.com/item/4000011565156.html

I'll try to connect an oscilloscope to check if PWM is applied. What setting should I ensure to be activated so that Fan 0 is controlled with PWM?

davidramiro commented 4 years ago

It's right there in the FAQ...

https://github.com/davidramiro/Marlin-AI3M/wiki/Frequently-Asked-Questions#my-sunon-or-other-custom-fan-only-runs-at-100

https://github.com/davidramiro/Marlin-AI3M/wiki/Customization-&-Compiling#PWM-Settings

gmag11 commented 4 years ago

Thank you. PWM signal is OK. Using stock blower works fine. I will read docs regarding PWM tunning

github-actions[bot] commented 4 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.