"I’ve been having real issues with my Elegoo Saturn 3 lately. It started when I tried to print a rather large bust with a new FEP that I had installed. The print failed twice in a row, roughly around the same layer. I ended up re-orienting the pieces on the build plate, thinking it may have been due to suction or that the orientation was causing the issue. Each time it failed around that same layer, that layer would be stuck to the FEP.
I ended up changing the FEP again. After re-orienting the model and trying for a third time, it failed again by sticking to the FEP. Also, there are these long blank spots in the print, like cracks or splits along the layers.
I gave up on that print, changed the FEP for a third time, and tried to print something from ZZ Studios, which was pre-supported. The first of two build plates printed all the way through, but I still got delamination layers where it looks like there is a split on the model.
I changed the FEP for a fourth time, made sure the FEP was tightened properly and seated all the way down into the vat, and made sure the vat was properly secured. I strained my resin to catch any cured pieces that may have made it back into my bottle, and I leveled my build plate properly. This time it got much further, but on the second build plate for the ZZ Studios print, I still got layer delamination with splits on the model.
I’m at a loss; I don’t know what’s going on. My printer worked fine up until I changed the FEP for the first time. I had never changed the FEP before that, so I imagine it must have something to do with it. However, I consider myself pretty competent, and replacing it doesn't seem like a hard task, so I’m not sure what could possibly be wrong. Any help would be greatly appreciated."
Printer Settings
Machine: ELEGOO Saturn 3
Resolution: 11520 × 5120 px
Build Size (X, Y, Z): 218.880 × 122.880 × 250.000 mm
Resin Profile
Resin Type / Name: normal / normal
Resin Density: 1.100 g/ml
Layer & Exposure Settings
Layer Height: 0.050 mm
Bottom Layer Count: 4
Exposure Time: 2.400 s
Bottom Exposure Time: 26.500 s
Transition Layer Count: 8
Transition Type: Linear
Transition Layer Interval Time Difference: 2.678 s
Wait / Rest Times
Waiting Mode During Printing: Resting time
Rest Time Before Lift: 0.000 s
Rest Time After Lift: 0.000 s
Rest Time After Retract: 0.500 s
Lift & Retract Distances (Two-Stage)
Bottom Lift Distance: 3.000 + 4.000 mm
Lifting Distance: 3.000 + 4.000 mm
Bottom Retract Distance: 5.500 + 1.500 mm
Retract Distance: 5.500 + 1.500 mm
Lift & Retract Speeds (Two-Stage)
Bottom Lift Speed: 65.000 + 180.000 mm/min
Lifting Speed: 65.000 + 180.000 mm/min
Bottom Retract Speed: 180.000 + 65.000 mm/min
Retract Speed: 180.000 + 65.000 mm/min