Variable ND Sunglasses
Note : Please make sure that the Filters you use have protection against UV rays, this is not common on camera filters so you may want to add some UV filters on top so they don't damage your eyes.
In this video, https://youtu.be/oTtvjKaMzOg I explore the idea of creating DIY sunglasses using variable ND filters and 3D printing technology. The project involves designing and printing the sunglasses frames, understanding the functionality of variable ND filters, and experimenting with different materials like PLA, TPU, and metal. I address challenges such as ensuring durability, fitting the frames properly, and dealing with polarizing properties. I also conduct drop tests to showcase the strength of 3D printed parts and provide insights into the potential of 3D printing for customized eyewear.
Variable ND Sunglasses
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.

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Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen(Without Speaker)
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That's so awesome! I'm so happy you tried it out, Hahah and the mini ones that's so fun! ( PS make sure to put some UV glass in-between the ND filters to protect your eyes otherwise it lets harmful uv rays through, I searched for 400nm UV Filters )
Did you just get one of the UV lens filters also meant for cameras? Because there aren't a lot of filters that are within the affordable range that specifically say 400nm.
They fit 43mm ND filters, and inside the VNDs I've added extra UV filters which is essential for Propper eye protection :) ( but they don't screw in as the lip I initially had in place would not work with metal so maybe some hot glue or a bit of tape is required for this version)