Instead of acrylic to shield the LEDs why not use glass?
You are in BKN there is Mega Glass right by the Nets Arena that can cut thin glass and that would work better.
Nice to see people DIY LEDs still.
I bought mine.[/QOUTE]
I didn't use a splash guard for this. I think you misread my post. I was making the shell of the fixture to cover the top and putting a fan on top to remove the heat from the heatsinks.
Sorry, didn't update my progress. but never too late to do so. Here is my fixture cover made from 3/16 clear acrylic and after gluing and drilling and mounting a 120mm fan was done. I painted it black on the inside so it looks shiny on the outside and threw a coat of white paint to reflect some of the light over the black paint. But I think it was just over kill on my end.
I have add a black foam board strips. I did this because the LED lens was right below the edge of the fixture cover and the glare was annoying for me. so I cover it with the foam board strip which help the annoyance.
Lesson learn.... 80 LED's at 8 inch height over a 60 cube is kind of over kill... LOL..