From the course: Additive Manufacturing: Optimizing 3D Prints (2019)

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Retraction settings: Advanced techniques

Retraction settings: Advanced techniques

From the course: Additive Manufacturing: Optimizing 3D Prints (2019)

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Retraction settings: Advanced techniques

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- [Narrator] Some materials, like PETG, and some geometries are particularly vulnerable to stringing. In those cases, you may need to tweak some of the more advanced retraction settings that we'll show you in this movie. Sometimes you want to hop up a little bit in the Z direction. This is called Z lift or Z hop. In Cura, you enable it by checking a box in the Travel section and then setting a value for it, like one millimeter. Turning this on helps avoid ripping the print off and lets you travel faster, especially on a Delta Bot. However, doing this can introduce inaccuracies from moving up and down a lot. If your Z axis moves slowly, you may not want to do this since the time spent lifting and lowering the nozzle can allow it to ooze more. Lifting by about one layer height is usually enough, though Delta Bots in particular can benefit from lifting higher. Here we're seeing very exaggerated Z hop just to give…

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