MMU 2.1.4 & MK3 5.0.3 Releases

Release 2.1.4 of MMU-FSensor firmware for use with Original Prusa i3 3D Printer and MMU2 combination.

Attached are compiled binaries(hex) for use with MK3 and MMU2.

Please read README.md on main repo page regarding setup and use compared with manufacturer firmware.

Added features

• More robust rehoming of idler
• Tuned Bowden length for less destructive failed load situation
• Re-written home on fail to optimise fail recovery
• Re-written unload sequence for vastly more reliable unloads
• Load to Extruder start now synced with MMU2 instead of an arbitrary 1.5s wait
• Tuned load/unload speeds for PLA, tension bolts must be 2-3 full turns past flush to stop grinding

Issues resolved

• First Layer Cal Wizard
• Rehoming issue after failed unload
• Possible mis-sync of idler after number of loads
• Tidied comments
• Re-fixed problem with unload failure recovery going to tool 1

Features currently being worked on

• Implementing custom speeds for Filament types
• ToolChange numbering in serial communications for each print (assist in any required debugging)
• Incorporating recent Prusa commits, possibly enabling MMU2-PowerPanic

REPORTING ISSUES

Please post any feature requests or issues with as much detail including build of printer screen of MMU, MK3 as well as what you think is happening, if your able please have a go at modifying the code and submitting a pull-request for your feature/issue.