If you want to make your own Rover Light Sensor Bar you can 3D print the STL file, or use the SVG file to laser cut a single piece of 6mm acrylic or two pieces of 3mm acrylic.

This file can be printed on a standard FFF (Fused Filament Fabrication) desktop printer without support.

The piece in the SVG file should be 94.5mm wide and 15.5mm tall. If it gets resized by your software proportionally scale to match that size.

Check out the guide for usage: https://learn.browndoggadgets.com/Guide/Rover+Line+Following/488

Assembly Hardware

You will need 2 screws as well as 2 matching hex nuts to secure the sensors to the Light Sensor Bar.

You will also need 2 LEGO Technic Pins to mount the Light Sensor Bar onto the Rover.

3mm Hardware

• 2 x Metric machine screws, Phillips pan head, Zinc plated steel, 3mm x 0.5mm x 10mm
• 2 x Metric hex nuts, Zinc plated class 8.8 steel, 3mm x 0.5mm

LEGO Technic Pins

• 2 x LEGO Technic Pin with Friction Ridges and Slots (2780 / 61332)