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.

Tenlog TL D3

No

No

100%

No

Print at 45° if using 300mm bed