Adding lights to the cyclotron took a little more work. I first drilled out the four circles, and then used Bondo around the openings to smooth them out.
![](https://cdn.hackaday.io/images/5375871697423443117.jpg)
Into each opening went a conical PETG diffuser, which had an opening at the top for a single WS2812B breakout PCB. Each LED was wired up to the next one in the circle, and eventually connected to an Arduino Nano clone along with the LED bar.
![](https://cdn.hackaday.io/images/437271697423461128.jpg)
Since all the LEDs are addressable RGBs, creating the animations would be simple. I could even change the colors, though for screen accuracy, the power cell would be blue and the cyclotron red.
![](https://cdn.hackaday.io/images/8671211697423706871.jpg)
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