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Bad supports for anyone else?


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Posted · Bad supports for anyone else?

With Cura 5.1 I have noticed poorly generated supports on all my PVA supported prints. 
PVA parts are printed in the air and the support interface has several gaps in the top layers. 


I have already reported this as a bug on github, but haven't seen anyone else experiencing this problem yet. You would think that this problem would be noticed more often with a printer that is designed for PVA printing, among other things.      


Bad generated support structure · Issue #12839 · Ultimaker/Cura (github.com)

So I just wanted to ask if anyone else has noticed this problem. 
Unfortunately, this problem means I can't do anything with 5.1, while 5.0 still has some bugs...

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Posted · Bad supports for anyone else?

I see that the Cura team has this on their backlog.  

In the case of that Github model there are settings you could adjust to move the support structure away from the model a  bit.  That way it wouldn't try to support those small upper radii that are the problem.  Changing the minimum XY distance from .2 to .6 will help as would lowering the amount of horizontal expansion and changing to "XY overrides Z".


I found another problem on certain models as there is no retraction when moving from the support to the model.  If the layer start point is directly adjacent to the support exit point then the model and the support can get welded together.  Not an issue for you with the PVA but for single extruder printers it is an issue.


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