Quote Originally Posted by User_Defined View Post

I was taking a closer look at these holes, remembering that the peachy build bottom-up and almost all of them originated on Yoda at heavy wrinkles.

https://s3.amazonaws.com/ksr/assets/...jpg?1407365420

- The lowest one on his right side has it's bottom point of origin at a heavy indentation on his shirt.
- The two next ones are almost flush with lateral wrinkles in his shirt.
- Lastly the most prominent one came from the corner of his mouth.

It could be that although the peachy can produce overhangs very well, these overhangs may be too steep for the wall thickness, and they may be losing contact when the laser forms them, creating a bubble with nothing for the new material to stick onto.

I am fairly sure that if they print with a thicker wall, that this will be overcome. And in the future, have some kind of material detect in the software that can see these problems in advance, and thicken the walls right before steep overhangs.


-UD
Very Observant of you!!

Indeed we noticed this too..

We have another theory that could explain this also, Stray laser light.
We have an alarming amount of light scattering far away from the focal point of the laser.
in arias that are more complex ( like the ones you point out ) the aria around that complication may get enough stray light to cause the surface of the resin to partially cure, to become so viscose that it has trouble flowing in over the printed wall.

Been working on better laser focus along side about 5 other theories , hopefully will have it solved soon.
The laser focus problem has been fun, iv been staring at beautiful diffraction patters for days, and learned about electro polishing, and how to machine very very small holes.
Light has some mind boggling property's.