Making smart glasses frames was way harder than I thought. Here's what I learned: Materials matter. You can't use normal plastic, because it has to be light and safe to touch your face So we chose TR90 plastic that's made for eyewear Fake gray-market TR90 plastic is common in... China. You gotta go to the source and make sure your TR90 is legit Glue is so important. If you put too much glue it will give issues, and add weight. Too little glue, won't stick. That's why it's better for a robot to do it (VIDEO) If the glue doesn't match the material perfectly, then it won't stick. So we tried like 4 glues to get the best one for our smart glasses You design the frame in 3D and then make a tool. A tool is just a metal mold that is shaped like the glasses. You put a bunch of melted plastic (TR90) in the tool, let it cool, and out pops the glasses frame. Do that 10,000 times Tooling leaves seams in the frame, so we figured out where to put the seam so it doesn't cut into your ear when you wear it Obviously this all must be super lightweight because the electronics are heavy The camera needs a certain perspective, so the glasses frame angles the camera down to capture hands in videos Throughout the design process, you can't sacrifice style And now our Mentra Live frames are bornshow more

cayden 凯登

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