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Insert pause or custom G-code at layer

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Last updated 13 days ago
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CSPLESDEITFRJA

PrusaSlicer lets you schedule a filament change at a certain layer. This can be used to print basic multicolored models. The printer automatically pauses the print as soon as it reads the color change in the G-code (M600 command) and prompts the user to proceed with the filament change.

  1. Slice your model normally. A preview will show how the part will be printed.
  2. On the right side, you will see a layer slider. Drag the layer slider on the down to select the target layer
  3. Right-click on the orange plus icon
  4. Select Insert pause print (M601)
    • The pause will be inserted before the selected layer is printed
  5. Insert a short message to be displayed on the printer LCD when the print is paused
    • e.g. “Place bearings in slots and resume printing”
  6. Confirm the Pause by hitting OK

You can remove the pause by moving the slider to the pause layer and left-clicking on the grey cross icon.

You can edit the pause message by right-clicking on the grey cross icon.

When inserting magnets, they need to be firmly in their slots. Otherwise, they’ll get stuck to the print head as it passes over them. Either design the slots with a tight tolerance or use a small drop of super glue to hold them in place.

You need PrusaSlicer 2.2 or newer to access the Insert pause and Insert custom G-code function. Both of these features do not work if you have Sequential printing enabled.

This feature is also not supported in old printer firmware versions (on the MK3/S/+ you need at least firmware 3.9.1).

When you slice the print again with inserted print pauses, you’ll get time estimates till each pause. The printer will also signal the pause with a beep.

Insert custom G-code at layer

Inserting a custom G-code can be useful for advanced users when creating a calibration G-code, like a temperature tower. 

"With great power comes great responsibility"
Verify twice that you inserted the right G-codes and that you understand what they do. For example, with some G-codes you could accidentally override the EEPROM values or move the nozzle into the print bed.
  1. A custom G-code can be inserted from the Preview window
  2. Drag the layer slider on the right to select the target layer
  3. Right-click on the orange plus icon
  4. Select Add custom G-code
    • The custom G-code will be inserted before the selected layer is printed
  5. Insert the custom G-code into the newly opened window. You can add several commands at once, simply press Enter to insert a new line
  6. Confirm by hitting OK

You can remove the custom G-code by moving the slider to the target layer and left-clicking on the grey cross icon.

You can edit the custom G-code by right-clicking on the grey cross icon.

Most commonly used Custom G-code commands

M104 - Set Hotend Temperature

M104 S260 ; set the current hotend temperature to 260 degrees
 

You can use this command to create a temperature tower by changing the hotend temperature at various layers.

M109 - Wait for Hotend Temperature

M109 S260 ; wait for the hotend to reach 260 degrees before proceeding

If the temperature is set with the letter S then M109 waits only when heating. If the temperature is set with the letter R then M109 will also wait for the temperature to go down.

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