3d print looks like spaghetti wrapped around a wire frame

[Hobie1 0]

I new to 3d print and am having a problem with my print not being solid. The end result looks like a woven basket. It will hold its shape because of the fill but the outside has no unity. How do I close the gap between the layers?

 

[geert_2 558]

Normally, too thin sausages are caused by underextrusion, which can have a ton of reasons: printing too fast, too cold, nozzle partially clogged, too much resistance in feeding traject, teflon coupler worn out, drive wheel worn out or dirty, filament stuck, filament near end of roll causing too much unwinding resistance,... And probably a lot that I forget. There is an extensive list somewhere on this forum, but I don't know the title, so you might need to search a bit.

 

But in your case, due to the weird shape of the straight lines, I am wondering if it couldn't be a defect in the model, in the STL-file? Are these straight lines supposed to be there? Maybe show a picture of the model itself in CAD, and of the preview in Cura, and compare all of them.