3.6.0-RC1 Firmware for Prusa i3 MK3/MK3S and MK2.5/MK2.5S

Summary:

• Initial version for MK3S and MK2.5S printers with MMU2 unit
• Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
• Stop print during filament change fixed

Detailed description of changes:

Smarter load to nozzle/unload/eject function for multi material printers and single material version improved:

This feature has been recently added to firmware in 3.5.2-RC1 version, but this initial version has been working only for single material printers (without MMU2 connected). In this firmware version, it has been extended to provide similar function also for multi material printers. We also decided to change function slightly to make it more useful for most users. When a user chooses to load filament (for example) with the cold nozzle for example, preheat menu appears and both nozzle and heatbed are preheated (to save some time later when starting a print) and printer waits for the nozzle to preheat close to the target temperature (5% below target). When preheating is finished, printer beeps and the user can start loading filament. Target temperature remains the same after the load is finished as we assume that most load/unload scenarios precede starting new print.

Stop print during filament change fixed:

When stopping print during the T-code execution nozzle could crash into wiping tower. This has been fixed.