3.12.1-RC1 Firmware for MK2.5 and MK2.5S

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Same Old Shane

(@same-old-shane)

Member Admin

3.12.1-RC1 Firmware for MK2.5 and MK2.5S

Greetings all;

With the help of the community, a few bugs were discovered with the final release of version 3.12.0. We would like to thank those members and also encourage others to report any issues that they might discover through our github page.

Summary

Restore correct RPM for fans
Set the calibration state when running M310 A
Non responding MMU2S fixed
Max Z-coordinate during Nozzle Change
MK2.5 beeping after Factory reset

This is the first release candidate of firmware 3.12.1 focused on bug fixes and small improvements.

Restore correct RPM for fans

In case of a Temp model error both fans spin at full speed to cool down the nozzle as fast as possible. In firmware 3.12.0 the fans kept spinning at 100 % RPM even after the TM error was cleared. This has been fixed now and the fan speeds are regulated based on the current temperatures.

Thanks to our community members @gregsaun, @Aldebaran91, @arekm, @matthew-humphrey reporting the issue.

Set the calibration state when running M310 A

Calibrating the Thermal model using the G-code command M310 A F0 didn’t set the TM calibration state correctly. This is now fixed and calibration stored as expected.

Kudos to our community members @arekm, @FrHePo and @gregsaun for reporting this issue.

Non responding MMU2S fixed

Firmware 3.12.0 accidentally introduced a bug, where the MMU2S unit might stop responding in case of an error. For more details, see issue #3742. This is now fixed and the unit will work as expected.

We would like to thank our community members @RPospisil, @ursius2020, @E-Extrude, @Hauzman, @Mirarkitty and @3dprintandpaint for reporting this bug and retesting the fix.