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[Sticky] 4.3.4 Firmware for Original Prusa MINI/MINI+  

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Same Old Shane
(@same-old-shane)
Admin
4.3.4 Firmware for Original Prusa MINI/MINI+

Summary

  • Support for PrusaSlicer 2.4
  • Time Zones extended
  • Satin sheet profiles added

 

This is the final release of firmware 4.3.4 focused primarily on extending the support for the upcoming PrusaSlicer 2.4. There are also some other improvements requested by the community. Compared to the previous version 4.3.4-RC, there are no changes.

Support for PrusaSlicer 2.4

The PrusaSlicer 2.4 is currently in the beta stage and you can read more about its new features here. Some of the changes introduced in version 2.4 have a direct impact on the firmware and in order to work correctly, the developers had to make some adjustments.

Starting with version 2.4, the G-codes have a larger allocation for the context information, which is located at the end of the G-code. Previously, it was enough to read the last 10 KB, however now it is necessary to extend the search for the last 20 KB (similar to the MK3 family). Thanks to this adjustment the printer is now able to correctly read the type of the filament, its usage and display it correctly on the print preview screen.

Time Zones extended

Starting with firmware 4.1.0 the printer is able to connect with the NTP servers and get the UTC time (assuming it is connected to the internet). The user then sets the correct Time Zone of the printer's location with respect to the UTC. Once all is set, the printer is able to provide the exact time in which the running print will be finished.

The list of the Time Zones was extended for this release and enables setting the difference to +14 (the previous limit was +12). This extension allows community members in New Zealand and surrounding Pacific islands to set the time correctly.

Satin sheet profiles added

In case the MINI or MINI+ are used with multiple types of steel print sheets, it is recommended to use the feature “Print sheet profiles”, which enables the user to store individual values of “Live adjust Z” for each steel sheet.

The factory list previously included profiles for Smooth and Textured sheets. This release extends this list with profiles for Satin sheets. However, please note that this is just about the names of the profiles. The factory settings for each profile are the same regardless of the name. The profiles Custom1 and Custom2 will be renamed Satin1 and Satin2.

In order to rename the profiles, a factory reset must be performed. Before this operation is performed, it is recommended to write down the current “Live adjust Z” value and use it later during recalibration.

Supported printer:

Original Prusa MINI
Original Prusa MINI+

Download Link:

https://github.com/prusa3d/Prusa-Firmware-Buddy/releases/tag/v4.3.4

How to flash the firmware on MINI:

Copy the firmware file (.bbf) onto the USB drive with FAT32 formatting Insert the flash drive in the MINI's USB port Turn the printer ON (or reboot it) A new screen will appear Confirm you want to flash the firmware

Please report any bug here:

github.com/prusa3d/Prusa-Firmware-Buddy/issues

As always, we wish you happy printing and look forward to your feedback!

Shane (AKA FromPrusa)

Posted : 16/12/2021 5:12 pm
languer liked
finke
(@finke)
Active Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

Does the update reset the printer statistics? If yes, a warning would be nice - because now I don't know when to do my 200h maintanance.

Posted : 20/12/2021 2:42 pm
TeachThePrints
(@teachtheprints)
Eminent Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

 

Posted by: @finke

Does the update reset the printer statistics? If yes, a warning would be nice - because now I don't know when to do my 200h maintanance.

What is the 200h maintenance?

Prusa Mini FW4.2.4

Posted : 20/12/2021 3:37 pm
MysDawg liked
sylviatrilling
(@sylviatrilling)
Honorable Member
RE:

This information is in the handbook that came with your printer. The handbook can also be downloaded from here: https://help.prusa3d.com/en/tag/mini-2

Mk3S+,SL1S

Posted : 20/12/2021 4:47 pm
RE3315
(@re3315)
New Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

good question.........I checked with Prusa Tech chat (Marek V.), who was nice enough to try a factory reset on their MINI real-time (great service!), and unfortunately it appears that the statistics would be lost doing a factory reset.   I'd kind of like to keep my statistics, so I guess I'll skip the factory reset and just use CUSTOM1 for my Satin sheet.........       Doing a factory reset would also lose the Live Z/Z values for the existing sheet profiles. Too bad these side effects can't be avoided..................

from the 4.3.4 FW notes:

Satin sheet profiles added

In case the MINI or MINI+ are used with multiple types of steel print sheets, it is recommended to use the feature “Print sheet profiles”, which enables the user to store individual values of “Live adjust Z” for each steel sheet.

The factory list previously included profiles for Smooth and Textured sheets. This release extends this list with profiles for Satin sheets. However, please note that this is just about the names of the profiles. The factory settings for each profile are the same regardless of the name. The profiles Custom1 and Custom2 will be renamed Satin1 and Satin2.

In order to rename the profiles, a factory reset must be performed. Before this operation is performed, it is recommended to write down the current “Live adjust Z” value and use it later during recalibration.

Posted : 21/12/2021 8:39 pm
TeachingTheDetails
(@teachingthedetails)
Eminent Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

Updated and reset the printer with no problems.

Only scary part: after the reset, it asked for the Selftest and part of that test includes heating the nozzle to 290°C, with no way to unload the current filament. Ended up pulling the power plug, before burning the loaded filament. 

hw: PRUSA MINI+, FW 4.3.3 & Cr-10s w/ BLTouch, Ezboard, Hemerasw: PrusaSlicer 2.4, Windows 11

Posted : 22/12/2021 9:09 am
mrstoned
(@mrstoned)
Reputable Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

It doesn't actually heat all the way to 290 (or atleast my update/reset didn't do that).

Tevo Nereus.
Prusa Mini+ kit (4.3.4). BondTech extruder.

Posted : 22/12/2021 6:44 pm
D.R.racer
(@d-r-racer)
New Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

 

Posted by: @teachingthedetails

Updated and reset the printer with no problems.

Only scary part: after the reset, it asked for the Selftest and part of that test includes heating the nozzle to 290°C, with no way to unload the current filament. Ended up pulling the power plug, before burning the loaded filament. 

@mrstoned is correct, the MINI only sets a high target temperature and then measures how the nozzle responds at "full throttle" (we need to avoid temperature PWM kicking in). The test is terminated roughly around 160°C. If the heater reached the temperature within some time frame, it is considered OK. If the temperature rose too fast or too slow, it is considered NOK.

This behaviour has been there for quite a while (at least a year or so).

However, we are making a note that the display probably shouldn't show the target temperature to avoid confusing users.

Posted : 13/01/2022 7:16 am
brotherseb77
(@brotherseb77)
New Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

Hello !

I just built my prusa mini+ and installed the supplier firmware (4.3.4). I don't see the satin sheet (from what I understand, I would need to do a factory reset). 

But I don't see the "New graphics for Live adjust Z" (which was supposed to be here from version 4.3.0). Do you think I need to do a factory reset for this one to appear too ?

Thanks a lot!

Sébastien

Posted : 29/01/2022 8:51 am
Zoltan
(@zoltan)
Moderator
RE:

Did you try menu Calibration->Live adjust z ? What do you see? can you share the display photo?

This post was modified 6 months ago by Zoltan

even an old man can learn new things 🙂
Standard I3 mk3s, FW 3.10.1 RC1, MMU2S, no closed box, Fusion 360, PrusaSlicer, Windows 10
PRUSA MINI FW 4.3.4, Prusa Connect Beta

Posted : 29/01/2022 2:18 pm
brotherseb77
(@brotherseb77)
New Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

Ahhhh sorry ! I thought the new one was in the "First layer calibration" menu 🙂

It's fine on "Calibration / Live adjust z". 

Sorry for my mistake 🙂

Sébastien

Posted : 29/01/2022 5:19 pm
Zoltan
(@zoltan)
Moderator
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

No problem 😉 

even an old man can learn new things 🙂
Standard I3 mk3s, FW 3.10.1 RC1, MMU2S, no closed box, Fusion 360, PrusaSlicer, Windows 10
PRUSA MINI FW 4.3.4, Prusa Connect Beta

Posted : 29/01/2022 5:50 pm
RainerE
(@rainere)
New Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

I can  not find the "Experimental" settings that were in 4.3.3 is there a reason or is it hidden?

Posted : 02/03/2022 10:01 am
dibor
(@dibor)
Active Member
RE: 4.3.4 Firmware for Original Prusa MINI/MINI+

Hello.

I'd like to see in the new firmware cooler speed in the % ( 0..........100% and not like now 0...........255)

Thank you.

Posted : 25/04/2022 10:28 am
Bazim liked
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