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MMU-MK3 2.1.8-RC2 TZB 7x7

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@TheZeroBeast TheZeroBeast released this 27 Jan 07:06
· 2 commits to MMU-FSensor since this release
2.1.8-RC2
cb81a6b

Release 2.1.8-RC2 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

I also recommended my simple MMU2-Selector & MK3 Extruder upgrade to passthrough M10 Bowden fittings
https://www.thingiverse.com/thing:3384288

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. Add M219 E gcode to filament start script if you would like it enabled for that filament. (helpful to disable for white or flex)
  6. Get familiar with the differences in failure states and recovery procedures from STOCK in README.md
  7. Slice with the Slic3r PE
  8. Happy PRINTING!

NOTE:

a. MK3 FW Based on PRUSA 3.5.1 Release

Added features

  • Synced unload is now type based, set from CONFIG.h
  • Direct positioning for Idler and Selector for more efficient moves
  • Toolchanges reported to MK3 each change, more accurate than trying
    to count on MK3 side
  • Idler dynamic holding current to keep it cool (high holding when engaged for load/unload)
  • Button debounce implemented for ensure correct button read
  • M219 E gcode created to enable Jam Detection

Issues resolved

  • Aggressive idler homing has been re-tweaked as it needs to be stronger than RC1 still, TPU created homing issues on RC1 settings
  • Hang state from accidental FSensor triggering when in error state
  • Setup menu is not only accessible via Service Position README.md has further details
  • Type based unload was only type 0, fixed now to obey type selected
  • Incorrect Jam Detection at times, see details on M219 E gcode above and in README.md

Current Issues

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.

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