• My setup is as follow :

  • Printer : Voron 2.4 350mm with stealthburner and Pheatus Dragon SF.
    • the print head back is modified to optimize the kick of the blob into the external bucket.
  • ERCF 13 gates
  • Filametrix with modified lever and depressor on servo
  • Blobifier lite version

• My workflow is as follow :

  • gates 0 to 9 have always the same filaments (PLA black to white following the standard color code)
  • gates 10 to 12 have no dedicated filaments. They can be anything depending what I need to print.
  • I use ERCF more as a color/filament selector than for multicolor prints.
  • I often print the same gcode in different colors using the TTG function of HH. (this is why I don't use the slicer purge volume matrix)
    • Therefore, I don't use the following features from HH :
      • MMU_START_SETUP
      • MMU_START_CHECK
      • MMU_END
    • I set HH as follow :
      • enable_park: False
      • enable_park_standalone: False
      • restore_xy_pos: '"none"'
        • I find it is better to let the slicer go where it needs to go.
      • park_after_form_tip: False
      • restore_position: True
      • user_pre_unload_extension: '"BLOBIFIER_PARK"'
      • user_pre_load_extension: '"PRE_LOAD"'
        • This force the toolhead to go at BLOBIFIER_PARK position for the first filament load
      • user_post_load_extension: '"BLOBIFIER"'

• In this lite version of blobifer I don't use :

  • the servo
  • the tray
  • the bucket
  • the shaker
  • the blob counter
  • the initialize routine
  • the purge volumes from the slicer
  • the original purge volume from Happy Hare tool to tool

• Instead I use :

  • a build in purge volume matrix build into the purge_volume.cfg file, the purge volumes are saved in mmu_vars.cfg
  • the purge volume can be initialized manually or by copy/paste from a spreadsheet
  • a gate to gate instead of the from tool to tool purge volume
    • This allow to print the same model in different color using the Happy Hare Tool To Gate mapping function without re-slicing the STL.
  • macros to adjust the purge volume at any time, even during printing
  • a gantry mounted brush and wiper based on this : https://www.thingiverse.com/thing:590448
    • The wiper is made from 2 pieces of silicone rubber 1mm thick

• I make the blob directly on the bed of a Voron 2.4 350mm.

  • I use a ramp to get the blob out of the printer into an external bucket
  • I use the toolhead to kick the blob out of the bed into the external bucket
  • STLs are made for my printer, there are no STL for other printers.
  • CAD files are provided in case you want to make modifications for you setup

See a video in this post on discord : https://discord.com/channels/460117602945990666/909743915475816458/1241678897649815625