This is a modified Zebra Plate shim of 3DPrinterNinja's original file which makes up for the changes in the new model of the Flashforge Creator Pro in 2016.
The new Creator Pro has moved the limit switch to the left which will miss the old Creator Pro shim. A block of material has been added and a contour has been cut out of it to fit the z-axis guideshaft.
To insert the shim, tilt it vertically and slide it in from the left side of the z-axis as shown in one of the photos. Slide the shim on top of the metal lip of the build platform to secure it in place. The Flashforge sign has been removed to fit the shim on.
This was designed using Tinkercad.