David. 3D printed quasi-holography

prusaprinters

<p>The continuation of my optical searches - 3D printed “holographic” images, which arise due to a slight displacement of the linear structure. Although we see the relief, the object itself, unlike lithophany, has no protrusions and dents. I call it "flat sculpture". When you tilt a shape or light source, the image appears and disappears, its shapes light up or darken.<br/> Everything is printed without post-processing with one material on an FDM or SLA printer.<br/> The image is best seen in contrasting backdrop material or in lighting from the top or bottom of the back.<br/> For ease of installation of the disk with the image, I made a simple stand.</p> <p>Photos do not convey the effect well, it is better to watch the video:</p> <figure class="media"> <oembed url="https://www.youtube.com/embed/5vaGkG7Jeyw"></oembed> </figure> <p>You can also see the head of Darth Vader made on this principle <a href="https://www.prusaprinters.org/prints/31527-darth-vader-3d-printed-quasi-holography">https://www.prusaprinters.org/prints/31527-darth-vader-3d-printed-quasi-holography</a></p> <p>And skull model: <a href="https://www.prusaprinters.org/prints/31556">https://www.prusaprinters.org/prints/31556</a></p> <p>For the convenience of turning the figure, I used a rotating table, which can be downloaded here: <a href="https://www.prusaprinters.org/prints/31458-motorized-mini-turntable">https://www.prusaprinters.org/prints/31458-motorized-mini-turntable</a></p> <h3>Print instructions</h3><p>Model size 10x10 cm. Nozzle 0.4 fits well, but other sizes can be chosen. With an increase in overall dimensions, the thickness (in this case, depth) can be increased to a lesser extent, in my experience 4 mm is quite enough.<br/> In my experience, it is possible to print in light colors, transparent gives less effect, like black. The presented model is printed in light gray plastic.</p>