Had the issue come up with a new user. Was haveing problems with prints ripping off the build table. After some discussion the user had pressed down on the new buid table. The stainless steel buid table is heavy enough that the weight of the table is all u need for proper calibration. When the screws are loose, and u have a free floating table, then all u need is a good PDMS and tightening the screws.
Robert Howle