These are two designs for 3D printed centering pieces for the light guide within the square (46 x 46 mm) pocket.
The inner diameter is 35 mm which is intentionally larger than the diameter of the light guide (30 mm). The gap will be padded with foam rubber.
The design is 45.5 mm in one direction to center the light guide in side the pocket, but narrower in the other direction. The idea is to use at least two sets which are installed at a 90 degree angle.

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