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MMU-MK3 2.1.6 TZB 7x7

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@TheZeroBeast TheZeroBeast released this 13 Jan 07:16
· 29 commits to MMU-FSensor since this release
2d3f5f0

Release 2.1.6 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 units.

Please read README.md on main repo page regarding setup and use compared with manufacturer firmware.
https://github.com/TheZeroBeast/MM-control-01/blob/MMU-FSensor/README.md

STEPS TO GET GOING

  1. FLASH MK3 & MMU2 with release HEX files above
  2. Adjust BOWDEN LENGTH (BOWDEN TUBE DETACHED FROM EXTRUDER, ONLY FIRST FILAMENT)
  3. Then Adjust FSensor to Bondtech Steps
  4. Check your Slic3r settings are in line with README.md
  5. Get familiar with the differences in failure states and recovery procedures from STOCK in README.md
  6. Slice with the latest Slic3r 1.42.0 Alpha (Required for proper Jam Detection)
  7. Happy PRINTING!

NOTE:

a. Readme Slic3r settings have been updated for Slic3r 1.42.0-Alpha3 for better printing (COOLER EXTRUDER)
b. MK3 FW Based on PRUSA 3.5.1 Release

Added features

  • 7x7 MBL shout out to @minout for this mod
  • LCD Guided MMU Setup menu, (adjust Bowden Length and FSensor to Bondtech Steps)
  • LCD Selected extruder always kept in sync. E.g. at boot and when manually changing selected extruder from MMU
  • Synchronised unloading, greatly reduced noise on unload, will be very helpful for FLEX
  • Jam Detection implemented, ensure extruder idler tension not too tight, as per stock setup not quite flush with extruder. If too tight extruder with skip and not detect jam
  • More action commands added for failure states that can be used for notifications in Octoprint
    1. // action:m600
    2. // action:mmuAttention
    3. // action:mmuFailedLoad1
    4. // action:mmuFailedLoad2
    5. // action:mmuFailedUnload
    6. // action:jamDetected

Issues resolved

  • Hang state from accidental FSensor triggering when in error state

Current Issues

  • LCD Guide only when getting into setup menu after fully booted.

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.