LED Strip Diffuser for 12mm Cable Trunking / Cover

thingiverse

I wanted to put some LED strips in my son's room, but I wanted to protect them and also diffuse them. I already had some 12mm cable trunking left over from some house wiring and this is perfect for 5V WS2812b LED strips to slide into. I just designed a push-in diffuser to print with clear PLA to push the strip into place, protect it and diffuse the light.It's this trunking https://www.screwfix.com/c/electrical-lighting/cable-trunking/cat1910006?trunkingwidth=12_mm - but I'm sure all 12mm trunking will be the same! Possibly even half-inch if you're in America. You can always scale the file in your slicer as you need to anyway. I firstly designed a cover that was the same as the original one that snapped on, but I found it was too brittle and snapped on installation (you may get better results with PETG as it's more flexible). The next step was to make something that snapped inside the trunking. This worked great, but I found that because I didn't glue the strip into the trunking, it rose up at some points - so I made a third version that pushed the LED strip flat against the bottom of the trunking and didn't require me to stick it in. If you're sticking the strip down, you can get away with the non-push version.I just did a 10mm length one, so you can set it to any length you want in the slicer easily.I set my slicer to print the infill in a specific way to nicely spread the light and I've provided a Cura profile starting point file if anyone is interested.I used 100% infill, but you don't have to.Print with the top, flat side on the bed.There are LOADS of photos in my make.If you're interested in the project case with the PSU etc in, it's here https://www.thingiverse.com/thing:6315913