Mellow VzBot 330 purge chute & nozzle wipe

The purge ramp helps guide the poop down through the cutout in the plate, where you can easily gather it from the bottom of the printer.   But the main advantage is the spot for mounting the nozzle wiper.

The silicon nozzle wiper can be had from Amazon for pretty cheap in a 3 pack.   They are designed for a Bambu A1 mini and are about 5mm x 30mm with adhesive backing.   

This piece prints easily with tree supports under the lip.  I used 0.25 layer height in ABS and it works great.   

Here are my purge and wipe macros:

[gcode_macro PURGE]
gcode:
 ;Begin heating
 M140 S60 ; Heat the bed but dont wait
 M104 S250 ; Heat the nozzle but dont wait

 M220 S100 ; reset speed to 100%
 M221 S100 ; reset flow rate to 100%
 
 G28

 G90 ; use absolute coordinates

 # hang the nozzle over the side of the bed
 G1 X337 Y45 F18000
 G1 Z5 F240

 TEMPERATURE_WAIT SENSOR=extruder MINIMUM=245

 M83
 G1 E150 F600 ; perform purge
 G1 E-3 F600 ; retract just a bit to reduce oozing

 G4 P5000 ; wait for extrude to finish
 M106 S120 ; turn on part fan to cool the nozzle down
 SET_HEATER_TEMPERATURE HEATER=extruder TARGET=140
 G4 P10000 ; wait for cooldown
 M106 S0 ; turn off part fan

 WIPE

 G1 Z15 F600        ; raise the toolhead to prepare for travel (avoid scraping)
 CENTER_HEAD   ; comment this out or change it to your liking

[gcode_macro WIPE]
gcode:

 {% set speed = 2400 %} ; 40mm/s

 G90

 G1 Z5 F600
 G1 X337 Y45 F18000

 # wipe the nozzle
 G1 Z1 F600
 G1 Y99 F{speed}
 G1 Y80 F{speed}
 G1 Y99 F{speed}
 G1 Y80 F{speed}

 G1 Z5 F600