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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Davide Sher

Since 2002, Davide has built up extensive experience as a technology journalist, market analyst and consultant for the additive manufacturing industry. Born in Milan, Italy, he spent 12 years in the United States, where he completed his studies at SUNY USB. As a journalist covering the tech and videogame industry for over 10 years, he began covering the AM industry in 2013, first as an international journalist and subsequently as a market analyst, focusing on the additive manufacturing industry and relative vertical markets. In 2016 he co-founded London-based 3dpbm. Today the company publishes the leading news and insights websites 3D Printing Media Network and Replicatore, as well as 3D Printing Business Directory, the largest global directory of companies in the additive manufacturing industry.

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