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AbeFM

Help with Dual Extrusion, un-retracting?

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I've been playing with dual extrusion for a few weeks now, early on I had massive issues with strings after switching filaments, and then I tuned it out and haven't seen it for a while.

 

After learning that many of the issues I've been seeing have their roots in software idiosyncrasies, I made a lot of changes to my settings.

 

Now when I return from standby when printing with the main nozzle, I get a predictable string - almost as if there is extra extrusion on re-prime - when I go back to the material.

 

I don't see what could be causing this, does anyone have any suggestions? The only restart prime I saw (for normal retraction) doesn't effect this and is set to zero.

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