Quote Originally Posted by asuratman View Post
Hi, Yes, I clicked on the highlighted "Harmonic Drive" . I found it not clear explanation. Then I tried to find on alibaba, Many type of "Harmonic Drive", I do not know which one the best suite for 4th axis. Maybe in the future, I plan to make 4th axis, It is low backlash as said in the ads.
you can order things from alibaba? Isnt' that site just a listing? its not like ebay with buyer protection and a very removed payment process like paypal to protect customers or anything like that. You deal direct with the manufacturer right?