Lenticular Clock

I love lenticulars. I&#x27;m working on writing my own lenticular software right now. You can see some of my lenticular math art here: <a href="https:&#x2F;&#x2F;gods.art&#x2F;" rel="nofollow">https:&#x2F;&#x2F;gods.art&#x2F;</a>

I&#x27;m most blown away just by the very existence of lenticular sheets -- I didn&#x27;t know that this was a general-purpose thing that you could do at home Years ago I paid for a 3d lenticular photo print but I always assumed the technology to do so was out of my reach.

Utterly impractical as a clock. Brilliant hack.<p>I guess version two will add a camera, an eye detector and two servos to orient the clock to create a real-live hybrid of xclock and xeyes.

Also, one of many digital sundials:<p><a href="http:&#x2F;&#x2F;www.mojoptix.com&#x2F;2015&#x2F;10&#x2F;25&#x2F;mojoptix-001-digital-sundial&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.mojoptix.com&#x2F;2015&#x2F;10&#x2F;25&#x2F;mojoptix-001-digital-sund...</a>

I had some success making lenticular sheets using a 3d printer by printing a single-walled cylinder using a clear PETG, cutting it up and flattening it out using a heat gun. You can use the layer height to control &quot;LPI&quot;. One problem is that it&#x27;s double-sided, which reduces the quality quite a bit.

Won&#x27;t this show the wrong glyph if you&#x27;re looking at it from the wrong angle?

Very clever idea. I wonder if instead of a printed sheet if you could combine it with an e-paper display with an interlaced image and then you could load different image sequences...

Lenticular postcards were relatively popular in the 60s and 70s (iirc). A family member brought some from Japan and I was fascinated by them. Sadly, they got lost over the years :-(

This is really cool! I had no idea you could just buy these sheets, I always thought you have to make them specially. The fact that you can buy them and then print a pattern is amazing.

The old Google badges used to have lenticular images, too. (Perhaps they still do? I haven&#x27;t been working there in a while.)