Rips or non sticking portion of layers
Cant figure out why I am getting "rips" in my prints. I am showing three examples. Some models are coming out without any issue and some are having bonding problems. The 2 mandolorian models are printed exactly the same (just reprint thinking it was an artifact) but it did it again on a different spot. The dental model I printed on a different printer (Sprintray) with different resin, but it did not have the issue.
Any suggestions on what can cause this. It is a new printer. I have run the calibration multiple times, I am getting some models that are absolutely perfect so I can't figure out what could be the difference.
Just to note the black is just where I marked it with a sharpie to show the ripped area.
RE: Rips or non sticking portion of layers
I know it has been a while since you asked this, but I am relatively new (here, though not to 3d printing) and I rarely log in.
A few "guesses".
1) Resin temperature - I think most resins perform very poorly below 25 or so degrees C.
I pre-heat mine in a CW1S to 40 C for at least 1/2 hour.
2) FEP film deterioration - without knowing how many prints you have done or how the film looks... if it is "cloudy" I would change it.
3) The general "cleanliness" and contamination issues, number of times resin has been poured back as left overs, etc.