Summary

• Fixed nozzle cleaning failed
• Improved PSU fan checks
• Improved AC Bed sensitivity to voltage fluctuations

This is the stable release of firmware 6.5.2 for the CORE One L, addressing several improvements and bug fixes, most notably false positive "Nozzle cleaning failed" errors.

Fixed nozzle cleaning failed

Both user feedback and our internal testing indicated that the nozzle cleaning checks were too strict, leading to false "Nozzle cleaning failed" errors. In some cases, the error appeared even with a brand new or freshly cleaned nozzle. We've tuned the detection parameters to reduce false positives while maintaining reliable contamination detection.

Improved PSU fan checks

We’ve adjusted the PSU fan checking parameters to prevent false PSU fan check failures.

Improved AC Bed sensitivity to voltage fluctuations

We made the AC bed less sensitive to mains voltage fluctuations. The printer should now handle small brownouts more reliably.