This is a replacement diffusing cover for the led light of a 42" ceiling fan as seen in the picture. The original fell and shattered to a million pieces :)

I've added heat evacuation holes (that does not require supports) and ridges on the side with notches to fit the locking mechanism.

The inner dimension of the housing is 172mm.

You should use transparent, heat resistant material (I used PETG).

If you want to adapt it to your fan, you can grab the original design on OnShape