Tool changing macro setup issue

[Bimbovadasz]

Hi! I'm trying to get physical tool changing work, but I keep getting errors. I am building a tool changer similar to the E3D one, but with an electromagnet instead of the stepper. I'm using the code for testing that I found in /config/example_simple/tools.cfg, but simplified it a bit for my configuration.

[gcode_macro TOOL_PICKUP]
gcode:
  M568 P{myself.name} A2                                               # Put tool heater in Active mode
  SAVE_GCODE_STATE NAME=TOOL_PICKUP                                    # Save GCODE state. Will be restored at the end of pickup code
  G90
  G0 X{myself.zone[0]} Y{myself.zone[1]} F18000                        # Fast move Y in front of parking spot.
  G0 Y{myself.park[1]} F1800                                           # Slow Move to the pickup position for tool.
  M400                                                                 # Wait for all moves to finish.
  TOOL_LOCK                                                            # Lock the tool.
  SET_GCODE_OFFSET Z={myself.offset[2]} MOVE=1                         # Set and move the Z offset. Avoid crashing into bed when moving out later.
  {% if myself.extruder|default("none")|lower !="none" %}              # If the tool has an extruder:
    TEMPERATURE_WAIT_WITH_TOLERANCE TOOL={myself.name}                 # Wait for tool to reach target temperature.
  {% endif %}                                                          
  G0 X{myself.zone[0]} F1800                                           # Slow Move to the zone position for tool.
  M400                                                                 # Wait for current moves to finish.
  RESTORE_GCODE_STATE NAME=TOOL_PICKUP MOVE=0                          # Restore GCODE state. Was saved at thebegining of SUB_TOOL_PICKUP_START. Move fast to last location.
                                                                       # Set the toolhead offsets. Z is set and moved before any moves in SUB_TOOL_PICKUP_START. Needs to be after any RESTORE_GCODE_STATE!
  SET_GCODE_OFFSET X={myself.offset[0]} Y={myself.offset[1]} Z={myself.offset[2]} MOVE=0  # Set X and Y offsets,

But when I call the macro I get this error: Error evaluating 'gcode_macro TOOL_PICKUP:gcode': UndefinedError: 'myself' is undefined

Am I missing something?

[TypQxQ]

The macro is called by the Python code and passes those parameters. /Andrei18 aug. 2023 kl. 13:38 skrev bene.daniel1997 @.***>: Hi! I'm trying to get physical tool changing work, but I keep getting errors. I am building a tool changer similar to the E3D one, but with an electromagnet instead of the stepper. I'm using the code for testing that I found in /config/example_simple/tools.cfg, but simplified it a bit for my configuration. [gcode_macro TOOL_PICKUP] gcode: M568 P{myself.name} A2 # Put tool heater in Active mode SAVE_GCODE_STATE NAME=TOOL_PICKUP # Save GCODE state. Will be restored at the end of pickup code G90 G0 X{myself.zone[0]} Y{myself.zone[1]} F18000 # Fast move Y in front of parking spot. G0 Y{myself.park[1]} F1800 # Slow Move to the pickup position for tool. M400 # Wait for all moves to finish. TOOL_LOCK # Lock the tool. SET_GCODE_OFFSET Z={myself.offset[2]} MOVE=1 # Set and move the Z offset. Avoid crashing into bed when moving out later. {% if myself.extruder|default("none")|lower !="none" %} # If the tool has an extruder: TEMPERATURE_WAIT_WITH_TOLERANCE TOOL={myself.name} # Wait for tool to reach target temperature. {% endif %}
G0 X{myself.zone[0]} F1800 # Slow Move to the zone position for tool. M400 # Wait for current moves to finish. RESTORE_GCODE_STATE NAME=TOOL_PICKUP MOVE=0 # Restore GCODE state. Was saved at thebegining of SUB_TOOL_PICKUP_START. Move fast to last location.

Set the toolhead offsets. Z is set and moved before any moves in SUB_TOOL_PICKUP_START. Needs to be after any RESTORE_GCODE_STATE!

SET_GCODE_OFFSET X={myself.offset[0]} Y={myself.offset[1]} Z={myself.offset[2]} MOVE=0 # Set X and Y offsets,

But when I call the macro I get this error: Error evaluating 'gcode_macro TOOL_PICKUP:gcode': UndefinedError: 'myself' is undefined Am I missing something?

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[Bimbovadasz]

I see that, but it doesn't work. I get the error, and I don't know what to do. Can you help me?

[TypQxQ]

I see that I too simplified it a bit much 😄 I changed the example code for the SUB_TOOL_DROPOFF.

It is called with inside the tool configuration like this: dropoff_gcode: SUB_TOOL_DROPOFF T={myself.name}

and it needs to reasign the myself in the begining of code with: {%set myself = printer['tool '~params.T]%}

Current backups of my working configuration can be used as inspiration: https://github.com/TypQxQ/DuetBackup/tree/main/qTC-Klipper

[Bimbovadasz]

Okay, it worked, thank you! 😄