I just wanted to make sure that I am understanding whats going on with the partially cured resin "Jelly " blobs and failed prints.
I’m attaching a crude diagram to make sure that what I’ve illustrated is what we think is going on in the resin tank that causes feature failures and part failures.
Thanks in advance.
I don’t think it’s diffraction. Actually, ever since they replaced my printer, I don’t get any more jelly (or not too much). In my observations, the jelly resin is produced when the laser is not calibrated properly, meaning the dot is not a dot but an oval or a smeared dot. So basically your part cured, but also some of the light is bleeding to the side and curing the surrounding resin a bit, creating the jelly.
I suggest you open a ticket and try the dot test to make sure your laser is calibrated properly.
Thanks for the advice Monger.
I just noticed something about the resin tank. There is what appears to be a sheet, or thin layer, of resin that has partially cured along the 4 vertical walls. It is not consistent in height from the resin level, or from the top edge of the resin tank. It seems to be tearing/falling off the wall in odd shaped sheets and floating around in the resin.
I will try a laser dot test and maybe a good resin tank cleaning too.
How long did it take to receive the replacement printer?
After doing a little bit of rough resin filtering, and removing several jelly blobs, my last 2 prints have worked out fine. I still haven’t managed to put time into cleaning off the “film” yet.