how do resin printers work?
In: Technology
One of the most common designs for resin printers is for there to be a resin mixture that cures (becomes solid) when exposed to UV light. A container of resin with a transparent bottom is placed within the printer and a plate capable of moving up and down is lowered into the vat of resin. With the plate a tiny distance away from the clear bottom, a screen under the vat will block off precise parts of a UV backlight.
The UV light passes the screen in the desired places and cures the resin between the plate and the screen. The UV light turns off, the plate will then move upwards a tiny distance, and the screen will block off different parts for the next UV curing cycle. By repeating this over and over an object can be constructed from these many horizontal “slices”.
In essence imagine taking any 3D object and cutting it into many tiny horizontal wafers. Those are the “slices” of the object that the resin printer is reproducing in sequence.
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