There is a little slop in the XY when it arrives, but tightening the shims and a teardown/rebuild fixes most of it. Unless you are doing heavy milling operations--BUY IT! I turned my milling table into the XY of a DIY Lathe. So long as the shims are tight, the cuts are clean! I'm incredibly impressed by the craftsmenship of this milling table. Definitely definitely worth the money!