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c'est compliqué

A potential untested workaround is to add a UM3 definition to Cura that forces it to regard the UM3 as a single extrusion printer. You won't have dual extrusion, but you will have One at a Time printing. Here is such a definition:


Place it inside the "definitions" folder either in your Cura application folder or in the "definitions" folder inside your configuration folder. You would then create a new printer inside Cura and pick the "Ultimaker 3 single extrusion" printer definition. You can have both an "Ultimaker 3" and an "Ultimaker 3 single extrusion" printer connected to the same physical printer in Cura, so you can then choose between single extrusion prints that allow One at a Time, and dual extrusion prints that don't.

(My french is not great)

(edit: and neither are my copy/paste skills)

Edited by Guest

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Note that I don't have a UM3 myself, so I have not tested the definition. If you try it please report if it works.


A first observation: the default UM3 profiles have the prime tower enabled, and it can not be disabled, because this setting is hidden for single extruder machines... :)

I don't know, if this can be overridden by the machine settings.

The workaround is: create a profile with disabled prime tower (while the "normal" UM3 is the current printer).

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