On the front of the robot, there are fixation holes for a servomotor. This servomotor is there to provide a rotation capability to the distance sensor. The user will thus be able to program a sweeping motion, or simply check distance right and left.

I designed the part using the servoHolder. It will have to be improved for printing without support, since it printed with bridging defects. However, it does not hinder the functionality of the part.

The defects can be seen on this version in the darker area.

However, when spinning the part, nothing shows :

Furthermore, the servo fits perfectly :

There are holes on the bottom of the holder to secure it on the chassis, using 3mm screws.

Here is the part used for those pictures, but feel free to check the github for the latest version.