ballscrew printer ！

who invent thread less one screwball？ thanks this one first, I design a new one for 3d print and pcb drill, nice one! accurate and no shock.

skype:zhongxw_oftenfull.com
mail:homer@ideaone.cc
www.ideaone.cc anyone wanna see samples? I could send to you.
skype:zhongxw_oftenfull.com
http://3d1st.taobao.com/shop/view_shop.htm?user_number_id=1143920&spm=a1z10.10.w4039-1552525805.2.mUVSk4

http://item.taobao.com/item.htm?spm=a1z10.1.w137644-1552541310.49.29W0vr&id=3676403913