3D Printed EyewearConsumer Products

Kings 3D does it again with SLA 3D printed sunglass lenses

At the moment for design checking, in the future who knows

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Although the company generally uses farily standard industrial SLA 3D printers, the team at Kings 3D certainly does not lack imagination when it comes to creating new and innovative ways to use this technology. The Chinese company has established a clear leadership in the Asian footwear 3D printing segment and it has now turned its attention towards eyewear, with the first example of directly 3D printed sunglass lenses.

The model shown in the video above, of course, is a prototype for a client. However the company has now fine tuned a particular approach to post- processing the transparent 3D printed lenses so that they can be darkened and used directly.

3D printed sunglass lenses
The lenses before post processing


This project used Kings 3D’s KS158T UV Resin (JS-UV-2018-R), which is a transparent PMMA-based resin with properties similar to ABS plastic. It is used in the company’s laser SLA 3D printers mostly for prototypes and models for automotive, medical, consumer electronics and other products.

sunglass lenses
More transparent 3D printed parts from Kings 3D

According to the company, the medium viscosity of the liquid resin makes the re-coating as well as the machine and parts cleaning easier, showing Improved strength and dimension retention in humid conditions. The resins also ensures good green strength, so that there is a minimal need for part finishing.

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