Whats the cheapest possible way to build either a green OR red(not both) xy scanner? Can it be done for under 100?
Also how do i combine two lasers. I want to combine a green and red laser(cant afford a blue at this time :'(). What do i need for that? Is it cheap?
Also how do i combine two lasers. I want to combine a green and red laser(cant afford a blue at this time :'(). What do i need for that? Is it cheap?