Update README.md
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David Ramiro
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README.md
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README.md
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# Anycubic i3 Mega Marlin 1.1.9 by davidramiro
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[](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3MFT8QMP5ZRCE&source=url) [](https://github.com/davidramiro/Marlin-AI3M/releases) [](https://github.com/davidramiro/Marlin-AI3M/issues?q=is%3Aopen+is%3Aissue) [](https://github.com/davidramiro/Marlin-AI3M/issues?q=is%3Aissue+is%3Aclosed) [](https://github.com/davidramiro/Marlin-AI3M/blob/master/LICENSE) [](https://github.com/davidramiro/Marlin-AI3M/releases/latest/) 
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This is my slightly customized version of the [Marlin Firmware](https://github.com/MarlinFirmware/Marlin), gratefully based on [derhopp's repo](https://github.com/derhopp/Marlin-with-Anycubic-i3-Mega-TFT) with his remarkable efforts to get the Anycubic i3 Mega TFT screen to work.
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Feel free to discuss issues and work with me further optimizing this firmware!
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@ -7,7 +9,12 @@ Feel free to discuss issues and work with me further optimizing this firmware!
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I am running this version on an i3 Mega Ultrabase V3 (for distinction of the different versions, check [this Thingiverse thread](https://www.thingiverse.com/groups/anycubic-i3-mega/forums/general/topic:27064)).
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Basically, this should work on every Ultrabase version that has two Z-axis endstops.
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**The new Mega-S is not officially supported. You can try your luck, but I have no means of troubleshooting issues with that machine. E-steps need to be set to 384 (`M92 E384.00` + `M500`), and afterwards calibration is highly recommended as per the instructions on the [Wiki](https://github.com/davidramiro/Marlin-AI3M/wiki/Extruder-Calibration/).**
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The new Mega-S should work too, but you will need to enter those two commands to make the new extruder work:
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```
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M92 E384
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M500
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```
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Afterwards, calibration is highly recommended as per the instructions on the [Wiki](https://github.com/davidramiro/Marlin-AI3M/wiki/Extruder-Calibration/).
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Note: This is just a firmware, not magic. A big part of print quality still depends on your slicer settings and mechanical condition of your machine.
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@ -157,7 +164,7 @@ G26 C H200 P25 R25
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[m600 demo]: https://kore.cc/i3mega/img/m600demo.jpg "M600 demo"
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**A USB host (OctoPrint, Pronterface, ...) is required to use this.**
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**Printing via USB is highly recommended for this.**
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#### Configuration:
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- Send `M603 L0 U0` to use manual loading & unloading.
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@ -165,16 +172,27 @@ G26 C H200 P25 R25
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- Save with `M500`
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#### Filament change process (manual loading):
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- Place `M600` in your GCode at the desired layer or send it manually
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- For printing via SD:
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- Place `M600` in your GCode at the desired layer
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- For printing via USB:
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- Place `M600` in your GCode at the desired layer or send it via terminal
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- Alternatively: Use `FilamentChange Pause` in the Special Menu
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- The nozzle will park and your printer will beep
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- Remove the filament from the bowden tube
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- Insert the new filament right up to the nozzle, just until a bit of plastic oozes out
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- Remove the excess filament from the nozzle with tweezers
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- Send `M108` via your USB host.
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- Note for OctoPrint users: After sending `M108`, enable the advanced options at the bottom of the terminal and press `Fake Acknowledgement`
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- For printing via SD:
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- Click `CONTINUE` on the screen
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- For printing via USB:
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- Send `M108` via your USB host or use `FilamentChange Resume` in the Special Menu
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- Note for OctoPrint users: After sending `M108`, enable the advanced options at the bottom of the terminal and press `Fake Acknowledgement`
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#### Filament change process (automatic loading):
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- Place `M600` in your GCode at the desired layer or send it manually
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- For printing via SD:
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- Place `M600` in your GCode at the desired layer
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- For printing via USB:
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- Place `M600` in your GCode at the desired layer or send it via terminal
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- Alternatively: Use `FilamentChange Pause` in the Special Menu
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- The nozzle will park
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- The printer will remove the filament right up to the extruder and beep when finished
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- Insert the new filament just up to the end of the bowden fitting, as shown here:
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@ -183,8 +201,11 @@ G26 C H200 P25 R25
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[m600 load]: https://kore.cc/i3mega/img/load.jpg "M600 Load"
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- Send `M108` via your USB host.
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- Note for OctoPrint users: After sending `M108`, enable the advanced options at the bottom of the terminal and press `Fake Acknowledgement`
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- For printing via SD:
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- Click `CONTINUE` on the screen
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- For printing via USB:
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- Send `M108` via your USB host or use `FilamentChange Resume` in the Special Menu
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- Note for OctoPrint users: After sending `M108`, enable the advanced options at the bottom of the terminal and press `Fake Acknowledgement`
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- The printer will now pull in the new filament, watch out since it might ooze quite a bit from the nozzle
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- Remove the excess filament from the nozzle with tweezers
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