This is a math-based arch, heavily influenced by several contributors here on the verse. Most closely resembles this one I am listing the link to, but I did not label this a remix because I started completely from scratch in Fusion 360 after a failed attempt remixing this one (https://www.thingiverse.com/thing:3107531). The math on the arch wasn't exact and it caused some issues with stability. So, back to the drawing board and build the entire thing in a fresh file - the video has some details about this.

I also added a slot to hold the remote for the LEDs and it's in both bases, in case I want to switch the position of it during use or storage.

I chose to make the left and right base much bigger - this isn't about conserving filament this is about making it strong. I included the step files from fusion in case the tolerances are too much for your printer...

Print List: 1 Left Base 1 Right Base 6 Arch Segments

On the segments, because this is an arch, you will need to rotate the arch segment by 12 degrees so it is straight on the print head. No support should be needed.