Replacement dishwasher cup shelf clip

This is a replacement retaining clip for the Cup Shelf p/n WD28X10180 for GE PDW7980N10SS and other similar dishwashers.
The clip snaps onto the outside frame of the shelf to hold it vertically when not in use.
The original clip was under-designed and is prone to breaking. Then the shelf just flops over and won't stay out of the way. With this clip, you don't have to buy an entire new cup shelf.
Openscad source code included for your modding emjoyment.
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Version 1.1, 5/31/14