Hi all,

I was hoping you could please help. I'm building a Prusa i3 kit that I bought from China, and I've been having some issues with various parts of the frame being wobbly.

Having taken a video, the vendor tells me this is normal, but it my eyes it's absolutely not okay. The whole printer head assembly can be wobbled on the guide rods.

That said I would really appreciate some points of view on the video. Likely causes, and ways to rectify would be great too.

Here's the video:

https://drive.google.com/file/d/0B78...FZbnFfeHM/view