Ender 3 LED Lightbar Stand
thingiverse
This was used to support an LED light bar on the top side of the printer. It slides into the profile of the printer support bars if you take the end cap off. The downside is you may get some shadows from the print head, but it is at least out of the way and won't interrupt the movement of the printer. A lamp positioned on both sides might be an improvement for less shadows but this works ok for me. The light bars I bought from Princess Auto for about 10 dollars or you could find them on Amazon.
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