6.1.2 Firmware for Original Prusa MK4S
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: 6.1.2 Firmware for Original Prusa MK4S
Hello,
I installed the firmware upgrade for the MK4 on my MK4, but then I realized that the binary file for MK4 and MK4S is the same!
I noticed that now my MK4 is faster, and it is behaving like an MK4S, but is not 😆 , and it does not have the super fan, so the increased speed make it faster, but I think it could compromise the quality since there is not enough cooling.
Moreover the HIGH FLOW nozzle is not installed and I fear it could clog / under-extrude on some prints since the printer has not enough flow rate. I am still using my MK4 printer profile on PrusaSlicer.
- How the FW knows if it is on an MK4 or MK4S ?
- Is there any option on the LCD to tell the firmware "hey is a MK4, not MK4S, please slow down and keep care of flow rate..." 😀
Regards
RE: 6.1.2 Firmware for Original Prusa MK4S
One would expect the nozzle selection will take care of that. After all the MK4S can use traditional nozzles.
RE: 6.1.2 Firmware for Original Prusa MK4S
Yes there is a setting that you can change on the screen for selecting your printer type, either the MK4 or the MK4S
RE: 6.1.2 Firmware for Original Prusa MK4S
I have a MK4S upgrade installed on my MK4. That is why I am posting in this thread. Previously, I was getting prompted with the time to colour change on the printer’s screen. I no longer see that value when I am printing an item that has a colour change. This was happening with this firmware on my MK4 and is still happening on my MK4S. Although this value was being displayed on the printer screen, it was never shown on Prusa Connect.
I would like to see this deprecated feature return and also included in Prusa Connect and the Prusa App.
Cheers.
RE: 6.1.2 Firmware for Original Prusa MK4S
I have no idea what I have done differently, but my most recent job is displaying "Next change in" correctly. Glad it is working...
I have a MK4S upgrade installed on my MK4. That is why I am posting in this thread. Previously, I was getting prompted with the time to colour change on the printer’s screen. I no longer see that value when I am printing an item that has a colour change. This was happening with this firmware on my MK4 and is still happening on my MK4S. Although this value was being displayed on the printer screen, it was never shown on Prusa Connect.
I would like to see this deprecated feature return and also included in Prusa Connect and the Prusa App.
Cheers.
RE: 6.1.2 Firmware for Original Prusa MK4S
One would expect the nozzle selection will take care of that. After all the MK4S can use traditional nozzles.