I just noticed something else.
The diagonal rectangles have a width of 1 mm. The printed printed them with 0,35 mm of line width which results in 2 lines and infill mess.
Now I played around with the line width in Cura and set it to 0.33 mm which fits 3 times into 1 mm and a bit of space. Which seems okay.
I will test print it on monday. I have a 0.4 AA printcore of PLA and 0.4 BB printcore for PVA. Maybe it works!?
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gr5 2,224
Wow. Nice print. Everytime I think I've seen everything I see something very different that people do with 3d printers.
The two features you want to experiment with are "z hop when retracted" and "combing mode".
In the first place I'm surprised this happens at all - by default combing is enabled which means it should not ever hop over those gaps and instead should stay within the thin walls when moving to another location to print. Maybe it can't do that though - because maybe the center area is hollow underneath.
So the alternative is to enable the z-hop thing and maybe (probably not) also disable combing. Because it doesn't retract when doing a combing move so it might not be retracting when making those "lines". But I doubt it. Probably you can leave combing alone.
You probably want to use the horizontal slider in layer mode to see if the head is moving up every time.
In addition you might have to play with retraction settings. You are printing very little between when retractions need to happen so maybe one of the retraction settins is occasionally preventing retraction:
minimum retraction travel (set to 0 to make it always retract)
maximum retraction count (set to 1000 to make it always retract)
Note that these last two are a bit dangerous and can cause your filament to grind to dust if there are too many retractions. So I would set these back to normal for any other print than this.
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MuhCow 1
Dear gr5,
thank you a lot for your fast reply. Following your ideas I have tried to fix my issue with the help of your tips.
The use of always-retraction ended up in a mess and the print looked that ugly during the print process, that i aborted it.
z-Hoping was always activated during my prints.
These blobs of PLA appear to happen at the position where the print head moves, the travelling paths.
The diagonal lines in the objects are 1 mm thick.
My latest idea was to change the size of width of the lines from 0,35 mm to 0,37 mm, as that resulted in less blue travelling lines in the slider view.
I can post my result on monday. Would it help if i uploaded the .stl file, or the cura file?
Thank you for your help, its really appreciated.
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