Build Your Own SLA/SLS

http://keynotephotonics.3dcartstores.co ... _p_48.html
I just came across this guy, "replaces the Blue LED source to between 385 nm and 405 nm LED" and up to 100 lumens.

It seems to be a problem of scale. I found a few of those but nothing under $1000, which means it is quite a bit cheaper to purchase a 1080p dlp projector and rip it apart as needed.

Does 0.3 mean the dlp chip is 0.3inches? They mention degradation of the chip due to lower wavelengths of energy. I wonder if a larger dlp chip (0.7 or 0.9) would better handle the heat produced?

I also wonder how long the typical dlp chip lasts while using ~400nm light.

There is no need to replace the blue led with a UV led. Just use resins made to cure with blue light.
For example: http://bucktownpolymers.com/zve200-v470.html
They make hundreds of formulas that cure with blue light.