Silicone Nozzle Scrubber for Voron 2.4

Nozzle scrubber for Voron 2.4

I was having issues with oozing with my Revo Hot End and it was throwing off the Z Calibration plugin. So I designed this with parts I had to hand. Works a treat!

BOM:

1. Silicone Egg Ring - 2.5mm thick - https://www.amazon.co.uk/gp/product/B0967DZYY1
2. 2 pcs M3x8mm SHCS
3. 1 pc M3x30mm SHCS
4. 2 pcs M3 t-nut

Instructions:

Print at standard Voron parts settings. Cut the ring down to squares that are 1-2mm above the bed. Slot the silicone squares into the printed part body. Pierce holes in the Silicone by pushing a Hex key through the side hole, secure with M3x30mm SHCS. Part is fixed to the opposite extrusion side to Z endstop switch, using M3x8mm SHCS & T-nuts

In the macro set your X & Y positions - X Start is to the right of the scrubber.

Macros (Klipper):

Macro taken from https://www.printables.com/model/109349-silicone-brush-nozzle-scrubber-for-voron-24 

Put the CLEAN_NOZZLE macro into your PRINT_START macro:

[gcode_macro CLEAN_NOZZLE]
variable_start_x: 265
variable_start_y: 300
variable_start_z: 1
variable_wipe_dist: -33
variable_wipe_qty: 5
variable_wipe_spd: 150

gcode:
  {% if "xyz" not in printer.toolhead.homed_axes %}
    G28
  {% endif %}

  G90                                            ; absolute positioning
  ## Move nozzle to start position
  G1 X{start_x} Y{start_y} Z{start_z} F{wipe_spd * 60}

  ## Wipe nozzle
  {% for wipes in range(1, (wipe_qty + 1)) %}
    G1 X{start_x + wipe_dist} F{wipe_spd * 60}
    G1 X{start_x} F{wipe_spd * 60}
  {% endfor %}

Changelog: 

v1.2 - Added 4mm Spacer for kinematic bed mounts 

v1.1 - Add M3x30 SHCS to retain silicone pads

v1 - Initial Release