I bought a model like this, the threaded rods are not straight, impossible to print anything ... I changed the rods, and other problems have happened ... The extruder is totaly Plastic so got blocked all time ... The sensor for the bed not work ... Buy a new again ...
Finally I "finally succeeded" to print a parts with this machine ... And the wobble is just disgusting ...
No support answers after 30 days and 3 emails, this printer has nothing of a machine pro, and still less the support of geeetech.