RRC[

Rat Rig Community [Unofficial]•3y ago•

31 replies

tmicke

4028 fan configuration (again, sorry)

Can someone help me with the configuration of my 4028 fan, I have tried every combination I can think of from the guide, https://os.ratrig.com/docs/guides/4028/

I have a 001 fan that I think was mislabeled, it was more than a year ago I bought it from RatRig, and at one point I had it running but it would not turn of when set to 0%

I have a octopus 1.1 board and was trying to connect as this picture, from the above guide.

So I have connected power (black and red) to PD15 and PWM (brown) to PA8, like it shows in the guide. The yellow cable I have cut and is not used by me.

I can get the fan to (with various combinations of code that I obviously don't understad at all):
go 100% all the time
100% when booting, and spin at 100% when it is set to 0% and when set to 100% it stops
And probably som other combinations as well but I can't get it to work as intended

I'm running RatOS 2.0.0

Connecting a 4028 fan | RatOS

4028 server fans are becoming a popular option for part cooling because of their light weight and great pressure and flow rates. In this guide we'll go over how to connect one and use it for part cooling. 4-pin fans usually aren't used in 3d printers, and many boards only provide 2-pin ports, but fear not! There's always a way.