This bracket snaps snuggly on to the print head so that a dial indiator can be used to level the bed.The dial indicator used here was purchased at Harbor Freight and Tools.
This dial indicator mount works by snapping snuggly over the print head. With this mount you do not have to remove the print head to level the bed. However, since the indicator location is displaced from the print nozzle, you cannot get to all of the corners of the bed.
Two tabs on the top of the mount slide over the notches at the top of the print head. Notice there is a notch for the bolt protruding from the printer and there is a 2-step snap at the bottom (be careful the right ledge is to the rigth of the body of the print head on the bottom left edge).
The dial indicator is held in place with a bolt.
After the dial indicator is mounted, home the Z-axis and move the print head to four corners. Adjust the bed so there is minimal bed height variation. I was able to get my bed to within 5/1000".
This mount was printed using Cura. Before printing, be sure to rotate the object on the X-axis (green) and lay it flat to minimize overhang.