So today was the first time ive ever 3D printed. My printer is the Creality CR-10. I used "Cura" to convert my .stl file to gcode, and I used blender to create the model. I have pictures cause they are literally worth 1000 words, if not more.

Few questions:

in the 3rd pic you can see that slinky wall the came out of the middle of the box. This was put in by Cura i assume as a pseudo support for the box.
Is this required? and can something like this be printed without that? If so, does anyone know how to turn that off in Cura, or if there is a better exporting program for this?

You can see in the 4th/5th pictures in blender AND Cura the pillars are round with a hollowed hole. 1st Pic shows that they came out very very oval shaped with no hollowed center.
So: Is this Cura related (software)? Is it printer related (my printer not capable of such precision)? Or what would cause this in general?

The box was about 1-3 mm short of what my measurements in Blender were. Has anyone else experienced this?

Is there a better modeling program than blender out there any of you recommend?

1. http://drive.google.com/open?id=1EyZ...cBL69NLGU1FsgH
2. http://drive.google.com/open?id=1SiZ...9-9EZRCtOjfbpn
3. http://drive.google.com/open?id=16Bo...oiuCL1BFb4N5jo
4. http://drive.google.com/open?id=1QFz...1IEqtkdotHEybx
5. http://drive.google.com/open?id=13DE...HRs7RDNKw-tmEg