Extruder Stepper Coolingfan always running  

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nilssonandy
(@nilssonandy)
New Member

Hey!

Just started to mod my mk3s with https://www.thingiverse.com/thing:2975582 and wanted to check where I should connect my 5v fan. Yes i know i can connect it up in the right corner but i only want it to run while I am printing. Just like the hotend fan. 

Any ideas?

Posted : 04/08/2020 3:57 pm
joan.t
(@joantabb)
Veteran Member Moderator

connect the red and black of the new fan to the cold end fan wire run them in paralellķ

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 04/08/2020 4:23 pm
nilssonandy
(@nilssonandy)
New Member

@joantabb

So I can connect it to the left hotend fan output and not slowing down the hotend fan?

Posted : 04/08/2020 4:32 pm
joan.t
(@joantabb)
Veteran Member Moderator

@nilssonandy

the hot end fan FET is powerful enough to power two fans, in paralell... 

as long as they are both 5Volt fans you will be fine!

regards Joan

 

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 04/08/2020 7:51 pm
peter.m26
(@peter-m26)
Honorable Member

5 volt, you could also use a phone charger, and keep this separate from the 3d printer.

Posted : 05/08/2020 8:22 pm
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