Where did you buy them from? If an eBay seller, please link to them?
I ask because there has been a few clones that don't quite work properly.
A post that might prove useful is this one (the last post): [forums.reprap.org]
I ask because there has been a few clones that don't quite work properly.
A post that might prove useful is this one (the last post): [forums.reprap.org]