Summary

This is a diffuser cover for a 8x32 WS2812b matrix. It is 0.8mm thick so any translucent pla can be used (i used natural.. a bit too transparent i think).
It is retained by a support which i secured with a bit of hot glue on the corners and middle.
The lens is 322mm long and will only fit on a 300mm plate at 45°. To prevent curling at the edges, i used a PEI spring steel sheet on an aluminium heatbed.

Print Settings

Printer:

Tenlog TL D3

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>100%</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>No</p></div></p>                                                    <strong>Filament:</strong> generic PLA                white, natural                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Print at 45° if using 300mm bed</p></div>

Matrix diffuser