... perhaps it could be a starting point for you. Then you can insert a G-Code pause, which will depend on your firmware. See what people are saying on G-Code to pause & change filament. Is this possible with the stock firmware and if yes: how exactly? Topic starter hi, the title says it all: I want to put gcode into the sliced file, so that my printer (CR-6 SE) will pause after a certain layer in order to change filament. This matches the behaviour of M1 in the NIST RS274NGC G-code standard and M0 in Marlin firmware. Pause at layer X with gcode Last Post RSS. Regular expressions are powerful tools and can be used to do more than to add a pause to your G-code. The commands I added were Gcode to move the nozzle away from the print, and a pause command for the machine.” Just open the G-Code in notepad and use ctrl-F to search for “ZX” where X is the height (in mm) you want it to stop at. User manually changes the filament The G-code to delay is G4. M226: Gcode Initiated Pause Example: M226. These two highly customizable scripts have a dramatic effect on your final print. It's up to the firmware of your printer, how it handles this command. ), but slicing software adds two additional sections or scripts of G-code to the sliced files: start.gcode and end.gcode. You can edit the custom G-code by right-clicking on the grey cross icon. I noted what layer and Z height that was, and the hardest part, I edited the Gcode manually to insert a host command. Just modify both layer numbers for the layer you want to pause on. In Repetier host and printrun you can add commands in the gcode that only control the host software. The P is in milliseconds. The custom G-code will be inserted before the selected layer is being printed; Insert the custom G-code into the newly opened window; 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. 25/10/2020 4:54 am. Before starting the print, user enters this info in Octoprints Web UI: layer# to stop at, pause_gcode_file (up to M0 in your example), restore_gcode_file (after M0 in your example) Plugin is enabled and print is started; Upon reaching the proper layer, the pause_gcode is inserted and the print is paused. Add multiple lines and change the layers for multiple pauses. This script uses a special text string for describing a search pattern called regular expressions. {REPLACE "\nM117 Layer 4, Z=" "\nG1 X10 Y5\nM0\nM117 Layer 4, Z="} The details for this and all other G-codes are documented here. It will look something like the below: The usual behavior of Marlin is, that it stops listening to the serial port (or reading from sd-card) and just waits until a button on the printer is pressed. Some firmware also accept a S Parameter that has the seconds. "Pause at height" does not much more than inserting a "M0" gcode command. That is, program execution is stopped and the printer waits for user interaction. Thingiverse is a universe of things. This model consists of 10mm segments which are printed starting at 235C and decreasing by 5C at each 10mm layer. Note that layer_z is the PrusaSlicer placeholder for the current nozzle height in mm, not layers. Note also that the “\n” parts of the code simply creates a new line in the GCode. Here’s an example of using before layer change G-code for changing temperatures on a temperature tower. We tend to spend a lot of time focusing on key parameters affecting the final print quality (layer height, infill, perimeters, etc. {REPLACE "; layer 3, Z = " "\nG91\nG1 Z20 F5000\nG90\nM0\n; layer 3, Z = "} Of course, you will need to decide the layer number to pause at (more on this in a bit). So, if supported, G4 S60 would do the same thing. G4 P60000 will wait for one minute. 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