Setup question

The instructions say to lift the vertical structure when screwing in the 4 screws that hold the y axis mechanism to the upright section. When I do that I have about 1/16" gap between the legs on the upright section and the table top. As a result any rapid x/y motion causes a huge vibration.

The table is square and level. And the vertical frame to y axis frame is mated. So how come I have this gap (rised vertical section) and how do I remedy this?


in thinking about this… it would appear that I need to shim up the feet as necessary because it’s important to keep the 80/20 matted and square to the vertical frame and the Y axis frame…