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E3D Revo Auto-Unload Filament after each print: G-code for MK3S+
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Do you hate having to heat up, remove filament, cooldown and insert filament into the Revo to swap nozzles? Read on!
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E3D Revo Auto Retract + Extended Start Purge:
Do you hate having to heat up, remove filament, cooldown and reload filament into your Revo Hotend when you want to swap nozzles? This is the ULTIMATE solution for you!
WARNING:
- Preform this mod at your own risk.
- I am not responsible for damage to your printer.
- Printer will only do what it is told, damage can occur due to typos.
- Code was modified from Prusa's original code for the MK3s+.
- This may not work on other Prusa printers such as the Mini or older MK3/MK2 printers.
- It most likely will work on MK3s printers but I cannot guarantee that.
- Please use your better judgement before pasting code into another model.
Start/End G-code for easy nozzle swaps.
- Start: extended extrude line if filament is not unloaded. Retracted filament needs a longer purge to reach the nozzle before starting print.
- End: retract filament from melt zone to free nozzle for nozzle swaps without reheating and retracting filament. Also added a chime for end of print.
Notes:
- As of March 11, 2023 only tested on .4 and .6 nozzle sizes
- Left side: original Gcode from Prusa (REFERENCE ONLY)
- Right side: modified G-code for auto retract and extended purge (REFERENCE ONLY)
- PICTURES OF CODE FOR REFERENCE ONLY:
- DOWNLOAD the 3mf files and save printer profiles to local computer (Preferred)
- OR
- DOWNLOAD txt files and copy into Prusaslicer to prevent typos (Advanced)
Steps for txt files (for users who have custom printer profiles already with stock G-code or users who do not want end of print chime):
- Choose desired MK3s+ profile to modify
- Select ALL text in “Start G-code” and replace with ALL text in Modified_Start_G-code.txt
- Select ALL text in “End G-code” and replace with ALL text in Modified_End_G-code.txt
- Save printer under NEW desired name (test before overwriting a saved profile)
If you have modified G-code already:
- You are at your own risk to merge your code into this code, unexpected results may occur.