First of all I precise I contacted the support yesterday (but no answers yet).
I printed some parts yesterday (6 very similar parts) and only 4 of them came out of the printer. Residues of the two others were visible at the bottom of the resin tank.
After the tank inspection, I saw a crack of about 3-4 cm positionned at the middle left of the tank.The optical glass seems OK but there is resin which spread under the resin tank mobile support.
The printer haven’t been used for about 3 weeks before yesterdays print but we never used any IPA or else on the resin tank.
Do you know if it’s OK to remove the screws of the resin tank mobile support in order to clean all the resin properly ? Any idea of how this could have happened ?
Do not remove the torx screws without the assistance of Formlabs, those are part of the calibration of the printer and you can throw things off if you don’t do it correctly. At least that’s the official word from Formlabs documentation.
I’d wait for Support to get back to you, they seem to be pretty quick usually.