would some one tell me how to do this the skecth and wiring . need floating mount for laser idea is that at beam is always focused no matter shape off object... my laser use this point hand focusing... my idea is at first focus the hand the system keep the distance at same for help off ultrasonic/laser sensor.. like se zero point and the motor keep that moving up and down...
Difficult problem, far too little information.
Did you look at any of the Google returns when you searched for "laser focusing"?
Paul