Firmware 4.4.0 causes preheat error with E3D's Revo Micro
 
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Firmware 4.4.0 causes preheat error with E3D's Revo Micro  

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Frog
 Frog
(@frog)
Active Member
Firmware 4.4.0 causes preheat error with E3D's Revo Micro

E3D's Revo Micro uses a 2-wire fan. The new firmware 4.4.0 doesn't take this into account. After printing the 1st layer the printer reboots and throws a preheat error. No printing is possible. I had to downgrade to 4.3.4 again.

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Posted : 05/12/2022 8:46 am
Jakub Dolezal
(@jakub-dolezal-2)
Admin
RE: Firmware 4.4.0 causes preheat error with E3D's Revo Micro

Hi Frog,

please finish at least one print on 4.3.4 to make sure the problem is in the fan. Then start an issue here: https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/new/choose

Once the developers have their hands free, they will take a look at it. 

Assembly manuals

/ Knowledge Base
The guy behind Prusa assembly manuals...

Posted : 05/12/2022 4:55 pm
Frog
 Frog
(@frog)
Active Member
Topic starter answered:
RE: Firmware 4.4.0 causes preheat error with E3D's Revo Micro

I did several (normal) prints after downgrading the firmware. I already added an issue here: https://github.com/prusa3d/Prusa-Firmware/issues/3798

Posted : 05/12/2022 5:24 pm
Frog
 Frog
(@frog)
Active Member
Topic starter answered:
RE: Firmware 4.4.0 causes preheat error with E3D's Revo Micro

I solved this problem by changing the standard E3D-2-wire-fan to this type: SUNON GM0503PEB1-8 (3-wire) ( https://de.aliexpress.com/item/1005003238233642.html).
I printed a new fan holder similar to the E3D-fan holder but with adapted dimensions to accommodate the new fan.
After that I installed the 4.4.0-firmware successfully.

Posted by: @frog

E3D's Revo Micro uses a 2-wire fan. The new firmware 4.4.0 doesn't take this into account. After printing the 1st layer the printer reboots and throws a preheat error. No printing is possible. I had to downgrade to 4.3.4 again.

.

 

Posted : 11/12/2022 12:45 pm
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