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The Jastrow illusion
Printed for you, made to order
Colour · printed in PLA
No preference selected, we’ll choose a colour that suits.
About this model
<p><strong>How It Works</strong></p><ul><li><p>Two identical curved placards sit close together.</p></li><li><p>One shape's short inner edge touches the other shape's long outer edge.</p></li><li><p>The brain compares the touching edges instead of the whole shape.</p></li><li><p>The short edge makes the neighboring long edge look extra big.</p></li><li><p>Swapping the positions reverses which shape looks larger.</p></li></ul><p><strong>Printing</strong></p><ul><li><p>I printed with a full infill with 2 different colors</p></li><li><p>If you have a Colored printer, Make the raised stars (0.2mm higher that top surface) white for added glamour.</p></li><li><p>I used Rapid PETG for added life, but almost any filament will work.</p></li></ul><h5>ONLY 7 MINUTES TO PRINT EACH (In a solid color ).</h5><p><strong>Age Range</strong></p><ul><li><p>Young enough to appreciate the illusion.</p></li><li><p>Old enough to be a grandpa.</p></li></ul><p><strong>Skill Level</strong></p><ul><li><p>If you can hold these two placards, your skilled enough to perform the illusion.</p></li></ul><h5><strong><em>Enjoy!</em></strong></h5><p></p>
Description by the designer on Printables.
How it works
- You pick the model; we fetch the designer’s file and print it in our UK workshop.
- Every piece is hand-finished and quality-checked before it ships, like everything in our shop.
- Printed in PLA, a plant-based material. More about our material.
This design was created and shared by an independent designer and remains their property. Every model offered for printing here has a licence that permits commercial printing. The original model page and licence are linked above.
