Layer-Free, Ultra-Fast 3D Printing Is Now Available to You
There are many different 3D printing processes, but they all have one thing in common: layers. They may not all have flat layers, but they all work by building up material layer-by-layer. That limits 3D printing to the speed at which the machine can form a layer. Except I lied to you and it is possible to print without layers at all. And now that technology is available to you, thanks to OpenCAL.
CAL (computed axial lithography) isn’t intuitive at all, which is probably why it isn’t commonplace today. A CAL printer, like OpenCAL, consists of a laser projector and a rotating cylindrical vat of photosensitive resin gel. The part forms in the vat, suspended in the gel. That takes less than a minute and support structures aren’t necessary.
But how? How does the projector target a specific distance range to form the desired geometry?
Imagine something like this...
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