Noob Question About Curing & DLPs
Posted: Mon Aug 08, 2016 8:04 am
I am coming from FDM printing so bear with me when I say that I am a noob. Anyways I was reading up on DLP printing and I am fascinated with the technology and how it works. I just can't wrap my head around the curing process.
I get its a photo-sensitive resin that cures at ~350-450nm wavelengths, and that arc projectors can output those UV numbers. My question is, if the process is halfway through printing a hollow sphere, for example, how does the projector focus and cure only the object needed and none of the liquid resin between the projected image and WIP sphere.
Thank you
I get its a photo-sensitive resin that cures at ~350-450nm wavelengths, and that arc projectors can output those UV numbers. My question is, if the process is halfway through printing a hollow sphere, for example, how does the projector focus and cure only the object needed and none of the liquid resin between the projected image and WIP sphere.
Thank you