Quote Originally Posted by tonyfoale View Post
Paul Compton pointed out in the Youtube comments that LH ball screws are rare because these screws are mainly used in CNC machines and it is simply a matter of software as to which way they turn. So there is no need to make both RH and LH screws.
Umm, how'z about turning the ballscrew nut around. Then it'd run backwards! Same-o, same-o, right?