Calculated Axial Lithography: 3D Printing in Seconds

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"Any of them enough advance technology East indistinguishable Since Magic," wrote Arthur vs. Clarke. And with calculated axial lithography, Or CAL, We have Finally created magical.

CAL East A without diaper 3D impression process invented has THE University of California, Berkeley In 2019. There is No growth, No accumulate — rooms are do entirely has once. THE common question, After A little moments of trying has to understand What was just said, East “How?”

How He Works

Drawing by Rob Nancy

First of all East THE impression material, typically A UV photopolymerizable resin of which chemistry East similar has those used In stereolithography (YEARS) impression. THE The easiest material East Understood of A monomer And A photoinitiator. A monomer East A molecule that can react has to grow long molecule Chains And interweave with himself, create A polymer. THE reaction East begin by THE photoinitiator, A special molecule that will react has A certain wave length of light. THE materials can get a lot more complex that This, having several monomers, Or more molecules that react has light differently, Or even tiny silica/glass particles. CAL has Already has been demonstrated with on 60 different materials.

Following East THE mechanical facility of THE printer. THE drawing above watch almost Exactly What THE patent looks as. THE impression material East put In A clear cylindrical glass container (D). There is A rotation element (VS) that turned THE container, And A projector (A) that shines THE pictures (B) that will create THE part. All other East additional And East just used has improve THE impression process. This could include lentils that will better control THE quality of THE light rays, Or A hint corresponding to box that will prevent THE light Since refractive When shots THE edge of THE round glass bottle.

Photo by Keith Hammond

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