Glass Window Retainers

The Problem
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The retainers holding the glass in my bookcase door break easily. The manufacturer used cheap and flimsy plastic parts.

The Solution
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Design and print a better part that re-uses the same screw holes as was manufactured. In the image with two parts, the white one is the original fragile part, the brown one is my reworked design.

The manufacturer of the bookcase used countersunk screws. The original plastic retainers had no countersink. Hence the frequent failure. My design has countersunk holes to help solve the problem.

The manufacturer did not have a left hand / right hand part. The same part was used all the way around the glass sheet.

I've also replicated, and included the fasteners that are used along the sides of the glass sheet.

The Design
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I honestly don't think the design is anything special. And I'm certain there are numerous existing parts for retaining glass sheets in the Thingiverse. So I've in