Firmware 3.7.2-RC1 for Original Prusa i3 MK2.5S & MK2.5
Hi guys,
our devs just released firmware 3.7.2-RC1, which is a testing version for experienced users 😎
What is new?
- Improving the behaviour of repeated power panic
- Automatic fan self-test
- Checking the correct firmware version for the printer
- Mintemp fix
- Filament runout delay fix
- Extruder position after fan error fix
- Text format correction on Live adjust Z screen
- Display target temperature at PID calibration screen
- A detailed description of changes:
- Improving the behaviour of repeated power panic
- Fixed several problematic situations when power panic is triggered in progress power panic recovery
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Automatic fan self-test:
The self-test is more robust, fan control is automatic
Checking the correct firmware version for the printer:
Protection against unwanted uploading of the wrong type of firmware to the printer.
Mintemp fix:
If a mintemp error has occurred before, the printer just ignored the processed G-code, now the printer is restarted. Indeed, Mintemp can point to a serious mistake and thus restart printer is a safer solution.
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Known issues:
Fan check
If a user does not correct the cause of the fan error and continues printing, the display does not show an error.
However, the printer does not continue to heat and expects user intervention.
Repeated power panic
In some cases of repeated power panic, printing may start a few tenths of a millimetre higher than it should.
We are working on solving these particular problems.
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Supported printers:
- Original Prusa i3 MK3S MMU2S
- Original Prusa i3 MK3S
- Original Prusa i3 MK3 MMU2
- Original Prusa i3 MK3
- Original Prusa i3 MK2.5S MMU2S
- Original Prusa i3 MK2.5S
- Original Prusa i3 MK2.5 MMU2
- Original Prusa i3 MK2.5
Download link:
github.com/prusa3d/Prusa-Firmware/releases/tag/v3.7.2-RC1
Firmware flashing guide:
https://manual.prusa3d.com/Guide/Upgrading+the+firmware/66
Please report any bug here:
https://github.com/prusa3d/Prusa-Firmware/issues
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As always, we wish you happy printing and look forward to your feedback!
/ Knowledge Base
The guy behind Prusa assembly manuals...
RE: Firmware 3.7.2-RC1 for Original Prusa i3 MK2.5S & MK2.5
Hi!
Just wanted to give some feedback on the 3.7.2-RC1 firmware. Flashing went perfectly fine on my MK2.5:
- I quickly ran through the menus and all texts options seem to work fine. No oddities found so far.
- The power panic feature I can't check as it isn't available on the MK2.5
- I printed a small object and the results were same as before, so no unusual things detected at this point.
- I will print something bigger/longer to rule out any other issues.Â
- Also will try to check the fan fail test.
Cheers! Sacha
RE: Firmware 3.7.2-RC1 for Original Prusa i3 MK2.5S & MK2.5
Hi,Â
thanks for the feedback 😉
/ Knowledge Base
The guy behind Prusa assembly manuals...
RE: Firmware 3.7.2-RC1 for Original Prusa i3 MK2.5S & MK2.5
Printed something larger today and the print came out perfect.
Also quickly tested the automatic fan test, and that completed with no issues. 😀Â
One thing I did notice is during the automatic filament loading step. Not sure if this is related to 3.7.2-RC though:
When I tried loading filament (after power up), the stepper didn't load the filament, even though the firmware recognized filament was inserted.Â
It completed the step but without the filament, and then the X-axis moved almost to the right and asked the filament to be ejected.Â
Quite strange. I restarted the printer (power off/on), and tried again. This time the loading was fine as normal.
Cheers! Sacha
RE: Firmware 3.7.2-RC1 for Original Prusa i3 MK2.5S & MK2.5
Tested also the automatic fan test and the PID menu. All are fine and couldn't see any issues so far.
Printed more models all without any problems.
Conclusion: 3.7.2-RC1 works well (no problems).
Cheers! Sacha