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Fan test
Posted: Thu Dec 05, 2019 4:16 pm
by dbelge
Hello,
I just got an A20M printer from a friend who does not want to use it anymore. Before using it myself, I would like to make properly the adjustments.
The first thing concerne the fans. I am not sur they are still working? Do you know a way to test them?
Thanks in advance
Re: Fan test
Posted: Thu Dec 05, 2019 4:33 pm
by William
Hi, the cooling fan is always on.
The PWM fan on the extruder housing was turned on after printing several layers,
The speed of the fan can be adjusted on the LCD screen
Re: Fan test
Posted: Thu Dec 05, 2019 4:59 pm
by dbelge
Thanks for your answer!
Yes the cooling fan is on!
I have two fan on the extruder and I am not sure they are working. If I heat the extruder manualy, did they have to work?
Thanks in advance
Re: Fan test
Posted: Thu Dec 05, 2019 5:31 pm
by William
Hi, When you manually heat the extruder, the fan inside the extruder will also work
Re: Fan test
Posted: Thu Dec 05, 2019 10:59 pm
by dbelge
I set the extruder to 201° and the fans does'nt start. Is that normal?
Re: Fan test
Posted: Fri Dec 06, 2019 3:17 am
by DzzD
Is that normal?
No, they should start as soon as you power on the printer.
Re: Fan test
Posted: Fri Dec 06, 2019 3:57 am
by dbelge
I have to test ifthe problem is the fans or the power.... Any idea how to do that?
Re: Fan test
Posted: Fri Dec 06, 2019 9:25 am
by William
Hi, You mean that when you turn on the printer, the cooling fan is not turned on;
You can measure the voltage on the port of the connected fan when the power is off.
During normal shutdown, there is no voltage. If the measurement is normal, the fan can be replaced.
Re: Fan test
Posted: Fri Dec 13, 2019 5:14 pm
by dbelge
Hello,
Thanks for the answers. I changed the fans and everything seems to be fine now. I have to check the offset and adjust the bed....
Best regards