Clamp a large universal clamp to the edge of the table and insert a long (1.5 m) rod into the clamp and tighten.

Clamp the top of the track as shown to the right using the rod attached to the track and a rod clamp. Attach this clamp to the top of the 1.5 m long rod. Adjust rods and clamps so that the loop the loop base is level in the table and stable.