Line Sensors/Ping Mount for Arduino Drawing Robot

Here are two mounts that attach to the front of the Arduino Chassis for Drawing Robot by MakersBox using the front battery holder mounting hole. One mount holds 3 SparkFun RedBot Line Follower Sensors and the other holds 3 SparkFun RedBot Line Follower Sensors and a Parallax PING))) Ultrasonic Distance Sensor.

I'm thinking of using this little bot as the basis for a robotics class for kids and wanted to add some more functionality. This is a work in progress that I will update and release the OpenSCAD source after I do some more testing.