"Hi, I'm Dave, and I'm a dickhead"
That one's bound to come back a few times.
use more care with that knife. slow down Dave!
also your camera autofocus is BS , get a better camera, or mod it.
why all the autofocus out of focus.
two setting are needed you at 2 meters and 30cm from the camera.
your an electronics engineer, Let's work the problem. will two intersecting red 45 degree laser beams give you precise focus at 30cm?