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bigtreetech / BIGTREETECH-SKR-mini-E3

BIGTREETECH SKR-mini-E3 motherboard is a ultra-quiet, low-power, high-quality 3D printing machine control board. It is launched by the 3D printing team of Shenzhen BIGTREE technology co., LTD. This board is specially tailored for Ender 3 printer, perfectly replacing the original Ender3 printer motherboard.
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FAN0 always on - ignores gcode abs marlin settings #454

Open nikon72 opened 4 years ago

nikon72 commented 4 years ago

Firmware 2.0.7.2

FAN0 always on from power up (part cooling fan)

Only started doing this today, for the past few weeks it’s been fine.

Now it doesn’t respond to gcode or the settings via the tft display

V2 of the board

Stock ender 3 pro, no additional accessories

flavio-costa commented 4 years ago

same problem with me, only use abs, same profile configuration and since the last update the nozzle fan does not respond to the settings of gcode, tft or marlin simulator .... fan works whenever, when it works.

flavio-costa commented 4 years ago

if you put the sd card directly on the board, fan0 works perfectly respecting the settings of the gcode, but if you put it in the tft inputs, fan0 does not respect the settings of the gcode. and even changing the display fan0 does not work. it must be something from this last update of the display firmware (use tft24 v1.1)

Nobodywasfaster commented 3 years ago

Same behavior with me "stock ender 3" and SKR Mini E3 V2 with version Firmware 2.0.7.2

davidrichter-cz commented 3 years ago

Hi, I have the same problem with the blower fan, I do not have a BL touch, the problem occurred by changing the default display to TFT24. So I don't believe there is a bug on the E3 MINI board but in the firmware. Any advice?

Nobodywasfaster commented 3 years ago

Hi,

i did a software downgrade to the original skr version 2.0.0.x. Since the downgrade the fan is working well.

But now the "break" feature (and the filament-change feature) did not work.

Both times the printer will no resume the print.....

 

In the next few days i will take some test with Octoprint / octpi. I hope with octoprint i could

use the fileament-change feature.....

 

 

Gesendet: Freitag, 22. Januar 2021 um 12:15 Uhr Von: "davidrichter-cz" notifications@github.com An: "bigtreetech/BIGTREETECH-SKR-mini-E3" BIGTREETECH-SKR-mini-E3@noreply.github.com Cc: "Nobodywasfaster" 1tr7plus@web.de, "Comment" comment@noreply.github.com Betreff: Re: [bigtreetech/BIGTREETECH-SKR-mini-E3] FAN0 always on - ignores gcode abs marlin settings (#454)

 

Hi, I have the same problem with the blower fan, I do not have a BL touch, the problem occurred by changing the default display to TFT24. So I don't believe there is a bug on the E3 MINI board but in the firmware. Any advice?

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DarkSnart commented 3 years ago

Been on the internet for days trying to figure this out. This is an issue with a lengthy history and many workarounds (and I've tried every one so far), yet no solid fix. Seems every time the issue is addressed, the next update breaks it again. I've read suggestions anywhere from swapping the fan wires to totally re-pinning the board. Maybe the Mini-E3 V3.0 will fix it once and for all. Until then I'll follow along and hope someone comes up with something!

pa1ntedb1rd commented 3 years ago

Same problem here after 2 months of usage. Requested support from BTT via aliexpress, and they asked me to; "If so, please test the continuity of fan0's MOSFET to check whether it has a short circuit problem. Please give us a high-resolution picture of fan0's MOSFET by the way, I need to confirm its model." I provided pictures and will do the connectivity check and share it. Not sure what will be the resolution. I will keep you posted.