Strange print failure

after a successful printing at the first time
second printing come out “cut” - missing material at the middle of the printing

see pic
pls adivce

  1. should the resign still good for use? i recognised a darker spot in the resin tray but its not seems hard
  2. should anyone can analyze the failure root cause


the first ood printing:

the second printing failed

Have you tried filtering the tank? After a print failure like this, it can be important to filter the tank to ensure that cured resin isn’t floating around. If you re-run the print, you might try modifying the positioning of the prints a bit. Printing in one spot can cause clouding which can eventually affect printing results.

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