[BUG] SKR 3 E3V3 Hotend Fan not working #156
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bug
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forgive me I'm not familiar with the BTT SKR Mini E3 that well. I did not know the Hotend fan had a switch. for an Aquila with a typical board, the hotend fan is always on, and the part cooling fan is adjustable (PWM). this was always assumed. so that is a feature then with SKR Mini - the hotend fan can be turned on/off and is speed variable as well?? I will have to look into this to see what pinout is used, perhaps there is an option in Marlin that enables this. |
classicrocker883
added
question
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No worries, i tried the MRiscoC firmware for this board and its the same
situation and the encoder works in reverse with his build lol.
I know most people likely dont use this board for Marlin due to the display
wiring and usually only use it with Klipper.
Other than the fan issues, i think the rest of the firmware works ok, i'll
have to try bed leveling etc tomorrow. I'll email you with my results but
yes all fans are able to be turned on and off, but the only one that you
can change the speed of is the part cooling fan. The motherboard fan also
doesnt seem to kick on, i'll try that again in the morning and see if I'm
remembering correctly or not as to the mb fan working or not.
I appreciate the reply and help in making it work :)
David
…On Sat, Sep 14, 2024 at 4:40 PM Andrew ***@***.***> wrote:
forgive me I'm not familiar with the BTT SKR Mini E3 that well. I did not
know the Hotend fan had a switch. for an Aquila with a typical board, the
hotend fan is always on, and the part cooling fan is adjustable (PWM). this
was always assumed.
so that is a feature then with SKR Mini - the hotend fan can be turned
on/off and is speed variable as well??
I will have to look into this to see what pinout is used, perhaps there is
an option in Marlin that enables this.
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Hey Andrew,
So i had a chance to check on the fan issues and it seems everything is
good, motherboard fan does work, so i did remember incorrectly, so the only
fan thats not working would be the hotend fan. I appreciate you helping
fix this as ive only compiled marlin maybe 3 times over the years and my
memory on how to do so isnt very clear at this point lol. Im
looking forward to using this firmware with this printer now that the
motherboard has been upgraded/replaced and a few other improvements.
Thank you for your time and help!
…On Sat, Sep 14, 2024 at 4:40 PM Andrew ***@***.***> wrote:
forgive me I'm not familiar with the BTT SKR Mini E3 that well. I did not
know the Hotend fan had a switch. for an Aquila with a typical board, the
hotend fan is always on, and the part cooling fan is adjustable (PWM). this
was always assumed.
so that is a feature then with SKR Mini - the hotend fan can be turned
on/off and is speed variable as well??
I will have to look into this to see what pinout is used, perhaps there is
an option in Marlin that enables this.
—
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Oh and the pinout for FAN2 should be PB15.
Thanks again :)
…On Sat, Sep 14, 2024 at 4:40 PM Andrew ***@***.***> wrote:
forgive me I'm not familiar with the BTT SKR Mini E3 that well. I did not
know the Hotend fan had a switch. for an Aquila with a typical board, the
hotend fan is always on, and the part cooling fan is adjustable (PWM). this
was always assumed.
so that is a feature then with SKR Mini - the hotend fan can be turned
on/off and is speed variable as well??
I will have to look into this to see what pinout is used, perhaps there is
an option in Marlin that enables this.
—
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thank you for letting me know, that should help figure things out. so maybe this will help your situation; I'm not sure if this fix information is posted somewhere, but with the stock original Aquila and board, the motherboard fan turns on only when the part cooling fan turns on / PWM speed adjustable (perhaps inherited from Ender-3V2 - since being a clone of it), and a simple work around is to splice that fan with the hotend fan since it is always on when the printer is on - to be on the safe side always keeping it cool. So maybe try this for now, just wire motherboard fan directly to constant power (24v I assume), and hotend fan in place of the motherboard fan. that is, how is that fan controlled/adjustable? like by part cooling fan or something else? otherwise just put both fans to constant power / always on. that may be a temporary fix while I look for a solution.
source: according to this post |
UpdateI found out how things should be defined in the configuration files. based on a bit of research, this is how the Fan Assignments
based on this post here So what I will do is follow these pinouts because that seems to be typical. I'm just thinking it would be easier for other users since this is what they would probably follow, but if you have any changes instead or whatever let me know. I will be posting a new release and this issue should be fixed. // SKR Mini E3 V3.0
#define FAN0_PIN PC6 // "FAN0"
#define FAN1_PIN PC7 // "FAN1"
#define FAN2_PIN PB15 // "FAN2"
// SKR Mini E3 V3.0.1
#define FAN0_PIN PC9 // "FAN0"
#define FAN1_PIN PA8 // "FAN1"
#define FAN2_PIN PC8 // "FAN2"
// SKR Mini E3 V2.0
#define FAN0_PIN PC6 // "FAN0"
#define FAN1_PIN PC7 // "FAN1"
// SKR Mini E3 V1.0/1.2
#define FAN0_PIN PA8 // "FAN0"
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Hey sorry, its been a long morning already, Yes, electronics enclosure is
the motherboard fan, it made me laugh a little when i first read it in the
documentation lol. Also, i would have spliced the fans together if i hadnt
just spent last weekend rebuilding this printer from the ground up. At
this point i was willing to wait for a new firmware to test lol. I
havent checked yet, but if you did update it, i'll try loading it before i
leave, ill be gone the next 2 days but should be back by wednesday in which
case if its updated while im gone, ill test it when i get back.
This board works really well with klipper, i look forward to using it with
marlin on this particular printer and seeing how it improved over the stock
GD32 board. Thank you for helping with this, its saved me from having to
re learn everything i forgot about making marlin firmware lol.
David
…On Mon, Sep 16, 2024 at 12:21 AM Andrew ***@***.***> wrote:
Update
I found out how things should be defined in the configuration files. based
on a bit of research, this is how the FAN# should be:
Fan Assignments
Header name Function
FAN0 Part cooling
FAN1 Hot end cooling
FAN2 Electronics enclosure cooling
based on this post here
<https://www.reddit.com/r/ender3/comments/wc09uz/bigtreetech_skr_mini_e3_v30_fan_connections/>
I supposed "Electronics enclosure cooling" can mean the motherboard
cooling fan
So what I will do is follow these pinouts because that seems to be
typical. I'm just thinking it would be easier for other users since this is
what they would probably follow, but if you have any changes instead or
whatever let me know. I will be posting a new release and this issue should
be fixed.
#define FAN0_PIN PC6 // "FAN0"
#define FAN1_PIN PC7 // "FAN1"
#define FAN2_PIN PB15 // "FAN2"
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Im back home now, i'll check this evening when i get to the house for any
new firmware and give it a try and report back my findings.
Thanks for working on this, i really do appreciate it. This printer is
going to be for my niece and nephew who want to make things for school
projects and stuff like keychains to help them learn about business etc.
Klipper was too confusing for them so rather than removing the board and
putting the stock one back in, i figured this was the best option.
Have a great day
…On Sat, Sep 14, 2024 at 4:40 PM Andrew ***@***.***> wrote:
forgive me I'm not familiar with the BTT SKR Mini E3 that well. I did not
know the Hotend fan had a switch. for an Aquila with a typical board, the
hotend fan is always on, and the part cooling fan is adjustable (PWM). this
was always assumed.
so that is a feature then with SKR Mini - the hotend fan can be turned
on/off and is speed variable as well??
I will have to look into this to see what pinout is used, perhaps there is
an option in Marlin that enables this.
—
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I should be posting the updated firmware today. just going through a couple tweaks before. |
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https://github.com/classicrocker883/MRiscoCProUI/releases/tag/2.1.3f-9 new release. let me know if the fans work as it should. Fan Assignments
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OK, I just got home and loaded it, only changes needed are to swap FAN1 and
FAN2 around.
FAN1=Motherboard/Electronics Enclosure Fan
FAN2=Hotend Cooling Fan
FAN0=Part Cooling Fan
If those are made, i believe it should work perfectly as intended :) I'll
try and swap the wires for now just so i can try and test the firmware and
make sure i dont find any other changes that may need to be made but i dont
think there will be any as i had good luck with the firmware for the GD32
board. I may try and add a BLtouch to this machine if i can find the extra
one i have laying around here somewhere lol. Anything to help make it
easier on the kids to learn and get started with.
Thank you Andrew, im excited to get this thing finished once the changes
are made. Hopefully the kids will have fun and make some cool things for
themselves and friends!
David
…On Thu, Sep 19, 2024, 8:16 AM Andrew ***@***.***> wrote:
https://github.com/classicrocker883/MRiscoCProUI/releases/tag/2.1.3f-9
new release. let me know if the fans work as it should.
the pinouts should be as follows:
Fan Assignments
Header name Function
FAN0 Part cooling
FAN1 Hot end cooling
FAN2 Electronics enclosure cooling
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ok well let me know if you're able to make the change, everything seems to
be working find other than the two pinouts needing to be swapped with each
other.
really appreciate all your time and help Andrew!
Have a great week, or whats left of it!
…On Thu, Sep 19, 2024 at 8:16 AM Andrew ***@***.***> wrote:
https://github.com/classicrocker883/MRiscoCProUI/releases/tag/2.1.3f-9
new release. let me know if the fans work as it should.
the pinouts should be as follows:
Fan Assignments
Header name Function
FAN0 Part cooling
FAN1 Hot end cooling
FAN2 Electronics enclosure cooling
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Ok, guess you are done replying, sorry to have bothered you, thanks for the
help though.
…On Thu, Sep 19, 2024 at 8:16 AM Andrew ***@***.***> wrote:
https://github.com/classicrocker883/MRiscoCProUI/releases/tag/2.1.3f-9
new release. let me know if the fans work as it should.
the pinouts should be as follows:
Fan Assignments
Header name Function
FAN0 Part cooling
FAN1 Hot end cooling
FAN2 Electronics enclosure cooling
—
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?? sorry what change did you need? ive been working on fixing another issue with homing. current firmware just isnt safe to use, but older versions are fine. |
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Sorry. ive been slammed with life this week.. The motherboard fan and the
hotend fan pins need swapped in the firmware to match what BTT uses. At
the moment its possible to physically swap them but im sure it will be a
issue for anyone else using this SKR board. I've been so busy ive not been
able to do much with printers this last week or so. Im hopeful tomorrow
ill get some time to myself to work on this printer again as its almost
done other than the small change in firmware and some hardware upgrades.
Have a good weekend!
…On Mon, Sep 30, 2024 at 6:36 PM Andrew ***@***.***> wrote:
?? sorry what change did you need? ive been working on fixing another
issue with homing. current firmware just isnt safe to use, but older
versions are fine.
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Did you test the latest release build?
Yes, and the problem still exists.
Bug Description
When the hotend is heated, the hotend fan never turns on. Fan works and is wired correctly as it runs fine with klipper but not with the pro ui firmware. I've even tried older versions and they have the same issue. It's a v3.0 board with the correct version of the firmware. I've also tried MM and UBL versions to see if it was just one particular build but they all have the same issue with the hot end fan.
Printer Model
Voxelab Aquila
Model Type
OG
Your Mainboard
BTT SKR MINI E3 v3.0
Other Mainboard Type
No response
Add-ons that could be involved
No response
ProUI-EX | Extra Features?
Yes
Bed Leveling
UBL - Unified Bed Leveling
Did you include your own configuration files?
Configuration.handConfiguration_adv.h.Additional information & file uploads
No response
The text was updated successfully, but these errors were encountered: