Summary
- Optimization and code refactoring
- Fixing filament change procedure
- Known bugs
Firmware release 5.0.0-alpha2 for the Original Prusa MK4 is focused on bug fixes, code refactoring and optimization.
Optimization and code refactoring
Polishing the code base was our priority for this release. We have been able to eliminate system crashes (BSODs) in all known edge cases. Moreover, we have been able to restructure and streamline the code and even cut some unnecessary or redundant computations. These improvements are necessary for further development.
Fixing filament change procedure
Our most recent implementation of Pressure Advance caused issues during the filament change procedure. This has been solved by disabling PA during the unloading of the filament.
Known bugs
There are several bugs in the current alpha we are still working on.
- False filament runout is sometimes triggered without an obvious physical cause.
- Skipped layers can occur randomly.
- Random layer shift on X and Y axes.
- A boot loop can occur. Restarting the printer solves it (use the main switch, not the reset button).
- Power panic and networking functions can cause errors.