Is it possible to get a whole first layer

[handsome1987 0]

I hope someone can tell me if this is possible:

In the attachments you will find 2 screenhots one from cura and one from simplify3d.
As you can see with cura the first layer of the print is cut in pieces where on simplify3d the first layer is a whole solid layer.
Can anyone tell me if this is also possible with cura?

[gr5 2,234]

The bottom of your model isn't all at the same level.  You have a few options.  Usually when this happens to me I go with the simplest option.  I go to menu item "preferences" "configure cura" then uncheck "automatically drop models to the build plate" then click on the model in cura so it is selected and on the left side of the screen select the icon to "move" the part then set the z value to a negative value.  This will chop off a bit of the bottom of the part.  You might only have to chop off 0.1mm. (set Z to -0.1) but typically I have to cut off at least 1mm.  Depending on the model.

 

I suspect the reason the results are different in S3D is probably that your bottom layer height in cura is 0.27mm and 0.3mm in S3D.  If this is true then you can go with method 2 which is to increase bottom layer height until it includes enough of the model

 

A third option is to fix the model so that everything that you want to start on the first layer... starts on the first layer.

 

[obewan 37]

It may be the walls are very thin.

Make sure you have 'print thin walls' ticked when you slice it