Ender 3 Lightbar Switch Box
thingiverse
Let there be light! This part is a clean switch box for Ender 3 lightbars. I'm using the Ender 3 Light Bar by Kevlarr, https://www.thingiverse.com/thing:3135488 Kevlarr's design works great! However, I needed the ability to turn lights on and off while printing. This box replaces the top right end-cap and holds two switches; one for the lightbar, the other for an extruder light (coming soon). The switches I used were red KCD11-101, https://www.alibaba.com/product-detail/KCD11-101-kcd11-small-rocker-switch_60556051670.html?spm=a2700.7724838.0.0.52a3660aRBDOk8 See photos of the final product. My part had a bit of stringing that I cleaned up with an xacto knife, but it was otherwise ready to print off the bed. Wire the switch in-line with the positive lead to the power supply. Since I'm using 12V LEDs, I use a DC-to-DC regulator to lower the 24V from the power supply to 12V. Add a connector to disconnect the lightbar from the power supply - I'm using a barrel for future maintenance. Good luck!
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