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can you explain me the difference between Merlin firmware and 5D Absolute E please?
best regards!

No Problem Merlin was a Magician. Alternate it's a Hotend with Airbrush Nozzles.

5D absolut E is only the way how the extruder will be controlled. Here with absolut cordinates
https://www.computerhope.com/jargon/a/abscoor.htm
https://www.computerhope.com/jargon/r/relacoor.htm

If your printer use Marlin then you can choose relativ or absolut E.

Fall, I see this is an old post, do you happen to have a working 3NTR profile?