Danger Wand: UVC germicidal light
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Warning: UVC is the most dangerous kind of ultraviolet light. Do not expose your skin or eyes to UVC light for more…
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- Printables
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- Electronics
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Warning: UVC is the most dangerous kind of ultraviolet light. Do not expose your skin or eyes to UVC light for more than a few seconds at a time!
For this build you will need the mini UVC fluorescent tube and power supply/ballast from Ali Express. Such as this one: https://www.aliexpress.com/item/1005005261880760.html
Note: if you get the tube "without ozone" it will not be UVC germicidal, it will be a normal florescent tube putting out only normal light.
I replaced the JST connector with a DC jack to terminal block plug because I dislike JST connectors. This is optional: https://www.aliexpress.com/item/32982446328.html (use your favorite plug or anything you already have)
Shop around the related items for the cheapest one, because the fact that I linked these might mean the price goes up.
You will also need some power source: 3.7V-12V. I am just using one 18650 lithium cell, but you can do whatever works for you.
Print Settings
Printer Brand:
Creality
Printer:
Ender 3
No
Supports:
No
0.3mm
Infill:
20%
Notes:
Black filament is recommended since it will resist being broken down by the UVC light for longer. (if you use this a lot you will eventually need to print a new case.)
I made the lid of TPU just to make it easier to remove and install.
Feed the wires from the fluorescent tube in from the wand end.
Press in the circuit board onto the standoffs.
Coil up the excess wires and hot melt glue them in place.
Plug in the tube.
Hot melt glue the tip of the tube to the top of the wand.
Optional: add some hot melt glue in between the components that stick up off the circuit board for vibration dampening.
Note: Silicone or contact cement would work too, just dry slower. Any glue that stays flexible when dry.
Category: Electronics