How to properly prepare SketchUp 2014 models for printing on a 3d printer?

Question

3D printers

Let's say I'm making a cube or a sphere, is there any solution to set the wall thickness and internal baffles for support automatically?
Are there any special programs, plugins or services for this?
Logic dictates that the details will be stronger if there is not a void inside. Is it only by hand?
In general, preparation for printing is of interest, as there are many nuances. For example, even how to calculate the consumption of plastic?
On this topic, I could not find anything worthwhile on the net except for the old article microsin.net/adminstuff/others/sketchup-for-3d-pri...

Answer 1

I myself will answer.
When printing a model through Cura, you can set the infill, etc.
That is, everything turned out to be quite simple.
;)