My camera is not perfectly horizontal on the HeadPLUS, what can I do? Ashley September 29, 2018 16:19 Follow Please see the tutorial below for adjusting the level of your camera: Related articles Why is the firmware of the HeadPLUS not updating for me? Episode #10 How do I teach a target without the Laser Module attached to the HeadPLUS? How do I adjust the overall smoothness of motion with the HeadPLUS? When I insert a battery into my SliderONE Pro, the power up ("beep") alert no longer sounds and my unit remains still. What can I do? Comments 0 comments Please sign in to leave a comment.