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Dual Print - Problems with support structure when changing Support Interface Extruder to Extruder 2

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Posted · Dual Print - Problems with support structure when changing Support Interface Extruder to Extruder 2

Hey there,

 

I've some troubles with the support structure trying a dual print with PLA and PVA.

I'm using the Fast profile in Cura 4.3.0 and except from the support settings I only changed the Layer Thickness to 0.15.

 

I would like to print with a Support Interface to save some PVA.

My support settings work well for using Extruder 1 only.

But somehow when changing the Support Interface Extruder to Extruder 2 gabs in the support structure appear as if support wouldn't be needed there.

 

I can't figure out which settings might cause the problem.

I attached a few pictures. I appreciate any idea!

 

 

Thanks,

 

Birte

support_with_extruder_1a.png

support_with_extruder_1b.png

support_with_extruder_2a.png

support_with_extruder_2b.png

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Posted · Dual Print - Problems with support structure when changing Support Interface Extruder to Extruder 2

Hey there,

 

I've sorted it out. I opened every hidden support option and compared them. There are a few more that are influenced by changing the Extruder which I didn't notice at first.

The problem was caused by "Support Stair Step Height". While it's 0.3 for Extruder 1 it turns to 0.15 for Extruder 2 and causes the gaps. I don't really understand why. Every other value (0, 0.3, 0.6, 0.9) seems to work fine.

Anyhow it works for now 🙂

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