BTT SKR2 - Extruder and cooling fan automation

This is a simple tutorial on how to install an extruder and automatic cooling.

Playlist for SKR 2:

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WARNING BTT and TMC steppers on SKR 2 revision A
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Hardware:
1 - BigTreeTech SKR v2
1 - USB Serial cable
1 - PSU 12 volts
1 - Extruder
1 - 12 volt cooling fan

Software:
Marlin Firmware 2.0.x

Documentation:

Pronterface:

[abdallahhanoun]

thanks for the content.
I hope u do continue doing content for the SKR 2.0

[bobcroft]

Another superb, clearly spoken explanation of the topic. My specific interest is in the Octopus board and I have watched all your videos to date on that board and they are all excellent. I would really like you to do a tutorial on adding a second extruder. This video covers the fan so it would be the hot end control this is needed. In particular how to control the second hot end with Gcode to test it in Pronterface.

[mikewhite]

great video! had my hotend fan in the wrong plug caused awful heat creep clogs. watched this not only figured that out but now my hotend fan only runs at 50+ instead of all the time!

[miremaker]

Hi Ed, and thank you for this as well as the Discord group. I've just added a 2nd cooling parts/layer fan, but I'm not sure which changes I need to make. Only 1 of the 2 seem to come on, but they both work 100% on their own. By default, I didn't have to designate any pins for my original single layer fan (it was plugged into PB6) Adding a fan to PB7 only made that fan work, but not my original fan in PB6. I'm kind of stumped. My slicer had no issue turning my original fan on while only connected to PB6.

[ZeppFloyd]

Thanks for the video. Maybe do one about how to connect a raspberry pi to the board using pins?

[santory]

Thank you for your support and informations. It''s been very helpful to me.

[thejunky]

One thing i cant find anywhere is how to activate the generic 12/24 v pins for constant always on fans for fan headers 3 and 4... Or I guess fans 4 and 5 depending who you ask, along the top of the board.

[Greyukr]

Thanks for the video. This is very useful!

[jstro-hobbytech]

I bought a 60mm 12v Silent noctua fan for the board and drivers and some buck converters. Would I just pull the 24v for the fan off the port in the order board-buck-fan?

[cotycollins]

PB6 and PB5 work, but if you try to use PB7 you get an error on compile claiming

#error "You cannot set E0_AUTO_FAN_PIN equal to FAN_PIN."

[Skudiero]

hello thanks for your videos, how can I make the probe do more than 6 measuring points on the plate probe?

[jetro]

Thank you sir.May I ask you to make a video about running tmc2130 v3.0 with skr pro v1.2 and how to run z offset prob with skr pro v1.2 ?

[D_Printing]

8 = Vishay NTCS0603E3104FXT Thermistor, 0603 (1608M) 100kΩ, 1.6 x 0.8 x 0.8mm Search Only shows a SMD for me?

[Skudiero]

Hi i have octopus v1.1 how always on fan pin in marlin for 3 fan in motherboard thanks