![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=48){kind=icon}
How to connect a second controller fan on Octopus Pro?
I want to connect a second two wire 12 Volt controller fan.
I could just parallel it off the existing contoller fan but as I have fan0 and Fan3 ports free it seems more convenient to use one of these fan ports.
Where do I make the change in RatOS to enable fan3 port to work in parallel with fan2?
I could just parallel it off the existing contoller fan but as I have fan0 and Fan3 ports free it seems more convenient to use one of these fan ports.
Where do I make the change in RatOS to enable fan3 port to work in parallel with fan2?
Solution
Should be as simple as adding to your printer.cfg something like
Where
Where
<name of pin> is the name of fan3 or fan2 port pin that you get from the octopus manual![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=16){kind=icon}