YouTuber Patrick Gibney presents a 3D printed “invisibility shield” in his current video. It's a 3D printed plate made of transparent PETG fibers that creates a deceptively true camouflage effect. Thanks to the lens structure, objects behind it become almost invisible, similar to the lenticular lenses of modern flat-screen televisions.
According to Gibney, the secrets to a successful “invisibility shield” lie in the correct printing settings: a layer height of 0.25 mm and an extrusion temperature of 210°C for the PETG material used ensure clear printing results. Support structures stabilized the material during the printing process, which lasted several hours.
The finished, transparent shield can be easily removed from the printing plate. Cut off the diagonally printed base piece and now align the self-supporting lens grid. Now if you put an object behind the “camouflage shield” they are almost completely hidden by the lenticular refraction of the stress lines.
YouTuber offers STL files for 3D printing of “Invisibility Shield” to interested parties Available for free on Thingiverse.
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