The laser sensor that comes with the Camera Axe is very sensitive to visible and infrared light. Under bright sunlight, I found it unusable.
My laser/light sensor is shielded from sunlight exposure, and is less sensitive in the first place. Schematics are pretty simple:
Bill of materials
|Op Amp||Linear Technology||$4.32|
|2.5″ audio jack||Generic||$0.99|
|Body||38mm body tube||reused|
|Caps||1.5″ PVC caps||$1.92|
|1/4″ x 24″ threaded rod||Generic||$1.55|