6.1.2 Firmware for Original Prusa MK4
Summary
- Support for MK3.9S and MK3.5S printers
- Numeric keyboard
- Custom names for steel sheet
- User-configurable hostname
- Binary G-code check
- ESP firmware flash during boot (MINI, MK3.5/S, MK3.9/S, MK4/S)
- New bootloader 2.3.5
- Network Status screen
- Steel sheet name in footer (MK3.5/S)
- Powered Z-motors during calibration procedure (MK3.5/S, MK3.9/S, MK4/S)
- Default nozzle diameter set to 0.4 (XL)
- Japanese language (MINI)
- Bug fixes
This is the stable release of the firmware 6.1.2 adding support for upcoming printers. There are also multiple upgrades and improvements for the existing printers.
Note: This firmware 6.1.2 is a direct successor to the firmware 6.1.0. Version 6.1.1 won't be released to public as a major bug was found and is fixed in 6.1.2.
Support for MK3.9S and MK3.5S printers
This release extends compatibility with the latest printer models, ensuring access to new features for MK3.9S and MK3.5S printers.
Numeric keyboard
You can now use a numeric keypad to enter numerical values by simply touching and holding the adjustable numeric field value, e.g. move axis or nozzle temperature.
Custom names for steel sheet
Users can now assign custom names to their steel sheets via touch keyboard.
User-configurable hostname
Users can now define their own hostname for the printer.
Binary G-code check
A new binary G-code validation process has been implemented, which enhances the security and reliability of print operations. This feature checks the integrity of binary G-code blocks during printing.
ESP firmware flash during boot (MINI, MK3.5/S, MK3.9/S, MK4/S)
Flashing the ESP module now occurs automatically during each boot if the firmware version doesn't match, eliminating the need for manual updates via the menu. The runtime process that previously handled this has been completely removed. Now, if an ESP module is inserted during printer startup, it will be automatically flashed with the new firmware without any prompts.
New bootloader 2.3.5
Fixes the issue where the .bbf file was being requested on the USB drive for MINI printers.
Network Status screen
A new Settings menu screen that gathers the most important information about network status and connectivity to key servers.
Steel sheet name in footer (MK3.5/MK3.5S)
For MK3.5 and MK3.5S printers, the name of the currently loaded steel sheet is now displayed in the footer of the user interface.
Powered Z-motors during calibration procedure (MK series)
During the gearbox calibration process, the Z-motors will now remain powered, leading to more accurate and consistent calibration results. The motors are then powered off again after the calibration is completed.
Default nozzle diameter set to 0.4 (XL)
The default nozzle diameter setting for the XL model has been adjusted to 0.4mm.
Japanese language (MINI)
Added Japanese language support to the MINI, enhancing accessibility for Japanese-speaking users. The firmware version with Japanese is available as a separate build, just like with other language versions on the MINI printer.
Bug fixes
- fixed M73 report #4089
- fixes for unexpected USB disconnection
Release notes:
https://github.com/prusa3d/Prusa-Firmware-Buddy/releases/tag/v6.1.2
RE:
Anyone been brave enough to try 6.1.2? I'm still on 6.0.1 as I couldn't see any reason to update.
I also went back to using Prusaslicer 2.7.4 as I did not like the interface of 2.8.0.
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Ian
RE: 6.1.2 Firmware for Original Prusa MK4
I installed 6.1.2 last night am am printing now. No issues so far.
RE: 6.1.2 Firmware for Original Prusa MK4
I installed 6.1.2 last night am am printing now. No issues so far.
Thanks - good to hear.
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Ian
RE: 6.1.2 Firmware for Original Prusa MK4
I'm running 6.1.2 on my MK4 with a newly built MMU3, no issues so far!
RE: 6.1.2 Firmware for Original Prusa MK4
Loaded 6.1.2 and now I'm getting 'stuck filament' errors, which I 've never had before.
Looks like it's back to 6.0.1 which I know works with no problem.
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Ian
RE:
Loaded 6.0.1, everything back to normal, no 'stuck filament' errors.
Clearly, someone has changed whatever parameter looks for 'stuck filament' without mentioning the change in the changelog and without giving anyone else, i.e. the user, any chance of changing whatever parameter was changed back to whatever it was in 6.0.1.
Also, on the initial start of a print I thought (with 6.1.2) that the print head was going to slam into the bed considering the speed it was dropping, compared to 6.0.1, however, the print head did stop and do it's normal thing, but, again, the change didn't make it into the changelog (haven't tried 6.0.2, 6.0.3 or 6.0.4).
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Ian
RE: 6.1.2 Firmware for Original Prusa MK4
It's very odd that your printer has this issue and other printers do not.
RE: 6.1.2 Firmware for Original Prusa MK4
It's very odd that your printer has this issue and other printers do not.
I would agree - my Mk4 was purchased ready-built and has not been modified.
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Ian
RE: 6.1.2 Firmware for Original Prusa MK4
I'm having USB flash drive issues after the upgrade. First, i put the firmware on the flash drive and rebooted the printer. It did not do the firmware upgrade. When I put the flash drive back in my Windows PC, it would no longer read the drive. I put it back in the printer and all my gcode files still showed up, so I just left it there and uploaded files via Prusalink. Then last night I got an out of space error when attempting to upload a model for printing. I tried deleting files but that did not work. I then used my PC to completely wipe the drive and reformat it. That worked for one print, but now I'm getting this message from Prusaslicer:
Prusaslicer has encountered an error
Upload has failed. There is no suitable storage found at x.x.x.x.
Timeout was reached:
Connection timed out after 10012 milliseconds[Error 28]