Print The Porto

A collection of tips about 3d printing.
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How to pause printing to switch filament

In order to do multi color print with one extruder. You can pause the printer at a specific height. Just insert the following after the layer height call in the gcode file. For example search for "; layer 5" and add the following after it:

;Pause Code
G91 ;Set Relative Mode
G1 E-5.000000 F500 ;Retract 5mm
G1 Z15 F300 ;move Z up 15mm
G90 ;Set Absolute Mode
G1 X20 Y20 F9000 ;Move to hold position
G91 ;Set Relative Mode
G1 E-40 F500 ;Retract 40mm, this can be commented out if you just want to pause to insert magnets or something.
M300 ;Beep (marlin)
M0 ;Idle Hold
G90 ;Set Absolute Mode
G1 F5000 ;Set speed limits, depending on slicer this can be set to your initial mm/min speed or it can be used for the following move only then the next layer will set the speed
G28 X0 Y0 ;Home X Y
M82 ;Set extruder to Absolute Mode
G92 E0 ;Set Extruder to 0

There is also the G4: Dwell command

Example: G4 P200

In this case sit still doing nothing for 200 milliseconds. During delays the state of the machine (for example the temperatures of its extruders) will still be preserved and controlled.

Categories: gcode, tips

Tags: tips, gcode

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