Next job is to weld up a frame to hold the rails and mount the electronics onto. Then I need to source some nema 23 steppers or servos. What do you think about these chinese servos

http://www.aliexpress.com/item/Leads...989514984.html
http://www.aliexpress.com/item/Leads...854636877.html

The reason I was thinking about servos or closed loop steppers is mainly for the faster rastering axis. At fast engraving speeds the quick change of direction may cause a stepper to lose position. These chinese servos look cheap but are they any good, I haven't seen anyone use them before?


Rebuild costs so far £750 leaving me £750 to complete.