- Initial Release (forked from my ERCF-Software-V3 project which is now deprecated).
- HHv2 is a rewrite to structure the software so it can support all types of MMU (only ERCF at release) and sanitize command set
- Adds total control of motor synchronization, multiple endstops (even for the extruder!!)
- Although HHv1 (aka ERCF-Software-V3) will remain available, HHv2 will be where all future enhancements will be made
- The latest KlipperScreen-Happy_Hare edition requires HHv2 (for my sanity)
- Much better doc and LOTS of new features to discover
- Speed and extrusion overrides (M220/M221) support .. records overrides across tool changes (MMU_TOOL_OVERRIDES command to see/reset)
- SpoolMan support (new options to MMU_GATE_MAP for SpoolD.. see doc)
- Separate "per-print" and total swap stats! No need to clear in your print_start anymore.
- "Auto restoring" gate quality indication (the "excellent/good/../terrible" one). Slowly averages out bad results.
- New "state machine" that closes a lot of annoying corner cases that I knew about but most users hadn't found yet doc
- New filament cutter option (Alternative
_MMU_CUT_TIPmacro) instead of tip forming andmmu_form_tip_macrosetting doc - MMU_UNLOCK is back (but as an optional step to resume temps). Can just call
RESUMEas well. - Better support for Octoprint users where the [print_stats] module is not available. Read up on new state machine and
_MMU_START_PRINTand_MMU_END_PRINTconventions (must read doc) - New moonraker gcode pre-processor module! Adds !referenced_tools! placeholder so you can automatically check all used tools before printing doc
- 'MMU_FORM_TIP' command updated to allow for runtime "tuning" Any variable to the macro can be adjust (and persisted) for testing or tweaking in print (handles tip cutting macro as well)
- Config now also automatically adjusts references to "extruder" when referring to stepper (e.g. in rare [controller_fan], [homing_heaters] and [angle])
- Lots of little things/bug fixes but I lost track 🫣
- Replacement of manual steppers with new MMU toolhead - faster homing and movements in general, new optional
gateandextrudersensors, optional encoder, intial support for Tradrack and other customized designs. - Ever wanted to use Happy Hare on a non-ERCF MMU?
- Ever wanted to use a pre-extruder entry sensor instead of collision?
- Wanted to fit a gate sensor and not rely on encoder for loading and parking at the gate
- Want to run without an encoder? (why? 🤷 )
- Want fast (no wait) homing?
- DON'T WANT TO RECONFIGURE YOUR EXISTING EXTRUDER? 👍
- Want the latest and greatest features?
NOTE: Requires Klipper 0.12.0 or greater
- LED support for bling, gate_status, filament color and action status, pre-gate sensor support for automated loading and gate_status setting, BTT MMB board support, integrated filametrix cutter support, new [mmu_sensors] config section of easy sensor setup. Doc improvements. New Features:
- LED (bling) support! See new page in the doc
- Pre-gate sensor support: Automatically set gate_status, LED status and activate pre-load. Oh, and new earlier run-out detection of reliable EndlessSpool
- Installer updates and support for BTT MMB board
- Integrated Filament Cutter support (Filametrix)
- Improved doc. E.g. Conceptual MMU
- New [mmu_sensors] section for simple setup of filament_sensors and endstops
- Enhancements for gate_sensor as alternative or in addition to encoder
- Lots of bug fixes and minor enhancements requested.
- Version tracking and better feedback on what to do
- Enhancements to existing commands. E.g try: 'MMU_STATUS SHOWCONFIG=1'
- Full Spoolman integration: will now pull material and colors from spoolman in addition to activating the spool
- Allow the LED effects to be configure anywhere on a chain (as well as gate 0->N or N->0 ordering)
- EndlessSpool got some love because I think it will be much more valuable with pre-gate switches and early runout detection:
- a) endless_spool_on_load parameter that will activate ES on loading a tool with empty gate
- b) endless_spool_final_eject distance specification for push beyond park position in an attempt to prevent filament from being accidentally re-loaded
- c) Cleanup of the display on klipper console and log messages
- d) Will ensure that the gate_status is at least "unknown" when MMU_REMAP_TTG is run, so attempt will always be made to load from the gate
- Updated LED support with lots more "multi-segment" flexibility
- New servo calibration - to fine tune and save without klipper restart!
- New full set of default toolhead positioning macros (defined in
mmu_sequence.cfg) - Full support for pre-extruder sensor option (prior to extruder entry)
- Exposed vendor-specific params (including the "cad_" set -- see doc at bottom of
mmu_parameters.cfg) - Full support for Tradrack including installer
- New manual bowden calibration for setups without encoder
- Workaround for CANbus comms timeout that is plaguing klipper
- Much improved
MMU_STATUS SHOWCONFIG=1. It will tell you in english what loading and unload sequence you have based on dynamic changes withMMU_TEST_CONFIGor sensor disable/enable. - EndlessSpool is now available on tool load
- Sync feedback sensor support .. I.e support for Annex Belay or another other sensor including proportional feedback. doc
- Improved "tip forming" test procedure and
MMU_FORM_TIPcommand - Fixed silly bug in spoolman integration where spool_id was being used to search as filament_id
- New
toolhead_ooze_reductionparameter for tuning without messing with what should be fixed extruder measurements. Doc page to follow - Refined toolhead unloading with better detection of incorrect config
- Cleanup and separation of config files based on function
- Lots of new/updated doc
- Fixes / update to the way toolhead movement occurs through the "sequence macros" like
_MMU_PRE_UNLOADand_MMU_POST_LOADetc.- Also if enabled these will now work while not actively printing (that was an oversight)
- These macros also play nicely with Klippain pause/resume macros now
- The z_hop_height_error has been deprecated. Additional z_hop height can be configured in the macro variables at the start of mmu_sequence.cfg
- LED update
- Better error feedback on LED misconfiguration
- Fix for led index when order of reversed.
- New placeholder preprocessing for colors and filament temps pulled from you slicer ( !colors! and !temperatures! ). See here
- LED update: New effect
custom_color. This will display colors stored for each gate based on user setting. One example use is to render the colors used in the slicer so you can visually compare with what is loaded. Documentation is in the gcode pre-processing section. - Improved movement "sequence" macros. These now work better when not completely homed (e.g. z-hop is optional.
- CUT_TIP macro now has option to control whether movement goes back to wipetower or not after cut
- Faster pausing on runout
- Fix for not automatically engaging the sync/servo after fixing error and resuming.
- New doc on how to setup your slicer to disable tip forming
- New doc on how to setup toolhead movement during toolchange or error
- Couple of new states to filament movement. These are to enable and display of various other sensors such as a gate sensor (option to encoder) and pre-entry extruder sensor.
- New rendering of filament position in console (and KlipperScreen-HH) showing all sensor options if fitted
- Imporved use of miscellaneous sensors to detect errors or non-errors
- Cleanup of the status displays of various commands
MMU_GATE_MAP,MMU_TTG_MAP,MMU_ENDLESS_SPOOL - New encoder calibration routine that allows calibration that "remembers" gate homing point and compensates for space between gate sensor and encoder if both are fitted
- Other bug fixes report in github "Issues"