This document explains how to use the Wippe suite, using Magneto X as an example.
¶ 1. Concept for Nozzle Wiping
First, to clean the nozzle before printing, a small portion of the print area needs to be sacrificed. As shown in the diagram below:
We need to attach the nozzle wiper felt within the designated nozzle wiper region.
On the Magneto X, you will need to manually adjust the X-axis travel. Modify the maximum travel of the X-axis to 312 in the printer.cfg file:
¶ 2. Attaching the Nozzle Wiper Felt
Use the provided 3M adhesive to fix the felt on your PEI sheet, as shown in the diagram below:
¶ 3. Determining the Felt Position
Using Klipper’s Move tool, move the X/Y axis until the nozzle aligns with the side of the felt. Note down the X and Y axis values at this position.
¶ 4. Setting Up the Nozzle Wipe Macro
The macro for nozzle wiping on the Magneto X is as follows.
Copy the two position coordinates of the felt you obtained in the previous step to x_1, y_1, x_2, and y_2:
[gcode_macro MAG_WIPE_NOZZLE]
gcode:
{% set iterations = params.ITERATIONS|default(10)|int %}
{% set accel = 12000 %}
{% set x_1 = 308 %}
{% set y_1 = 15 %}
{% set x_2 = 308 %}
{% set y_2 = 305 %}
SET_VELOCITY_LIMIT ACCEL={accel} ACCEL_TO_DECEL={accel / 2}
M109 S220
G28 Z
G1 Z20
G1 X310 Y5
G1 Z15
G92 E0
G1 E30 F200
G92 E0
G1 E20 F200
G92 E0
G1 E-10 F200
M106 S100
M118 Wait for the material to flow out automatically
G4 P3000
M107
G4 P120000
M118 Wait for the material to flow out automatically
G1 Z3.1
{% for i in range(iterations) %}
G0 X{ x_1 } Y{ y_1 } F8000
G0 X{ x_1 } Y{ y_1+20 } F8000
{% endfor %}
G1 Z20
G1 X{x_1} Y5
G1 Z3.1
{% for i in range(iterations) %}
G0 X{ x_1 } Y{ y_1 } F8000
G0 X{ x_1 } Y{ y_1+20 } F8000
{% endfor %}
G1 Z20
G1 X{x_2} Y300
G1 Z4.5
{% for i in range(iterations) %}
G0 X{ x_2 } Y{ y_2 } F8000
G0 X{ x_2 } Y{ y_2+20 } F8000
{% endfor %}
G1 Z20
G1 X{x_2} Y330
G1 Z0.2
{% for i in range(iterations) %}
G0 X{ x_2 } Y{ y_2+30 } F8000
G0 X{ x_2 } Y{ y_2+50 } F8000
{% endfor %}
G1 Z20
G1 X5 Y5 F8000
After completing the setup, you can place the MAG_WIPE_NOZZLE macro in any location where you need nozzle wiping, such as under the PRINT_START or PRINT_END macro definitions.