Printer: Felix 2.0

Notes:
The pieces take between 35-50 minutes to print each. I used the SFACT slicer, the setting "normal quality 2" and I set the last 4 layers to be completely filled to achieve a better quality. The only piece that was printed with support was the car.

How I Designed This
The traffic signs were originally downloaded as .svg files and modified with Inkscape to transform all the curves into lines. The files were saved as .dxf files and added to *.scad files. The code for the lego-compatible blocks was provided by our teacher during the course. The .scad files were exported as .stl files and the mesh were repaired with Netfabb Basic. To be able to print the pieces, the software Repetier-Host for Felix printers was used.
Here are the original files:
Traffic cone:http://www.thingiverse.com/thing:
Car: http://www.thingiverse.com/thing:609957
Animals: https://thenounproject.com/panzano/collection/usa-traffic-signs/?oq=traffic%20signs&cidx=3&i=163023
Roadworks: https://thenounproject.com/aldricroib/collection/traffic-signs/?oq=traffic%20signs&cidx=2&i=240697
Round point: https://thenounproject.com/search/?q=traffic+signs&i=7538
Turn right | Turn left: https://thenounproject.com/adamzubin/collection/traffic-sign/?oq=traffic%20signs&cidx=0&i=131433
Straight ahead: https://thenounproject.com/AphoomZhah/collection/traffic-signs/?oq=traffic%20signs&cidx=1&i=180595
No entry: https://thenounproject.com/term/no-entry/10540/
Stop: https://thenounproject.com/panzano/collection/usa-traffic-signs/?oq=traffic%20signs&cidx=3&i=162744