Sorry, I didn't understand.
Is there some example?
Keep in mind that the arm is too small and must do a precise job.
Other, I can't use two motors at the same time (is a project problem). In other words, if I use the left/right movement (rotation motor), I must release the electricity of the pick motor, and it's must still given some 'pressure' on CD (using a coil or something like this).
Brazil - Rio de Janeiro