Part not sticking to the build plateform


My latest print failed only after few layers :

The base is not sticking to the build plate (I always clean the build plate with IPA and let it dry).

I have only printed small parts on the Form 2 yet. Could you help me to avoid this ?


Use fine tuning to adjust the Z height down 0.1mm and try again.

Thanks !

I have IPA marks on my optical window, could it be the problem ?

could well be, to me the critical time for the laser is at the start to ensure correct exposure, this ensures resin sticks to build plate

If the window is dirty, it can affect the print. You should clean it using the FormLabs approved process and materials.

Thanks for your help. The issue was due to the dirty glass window. After replacing the window, everything is ok !

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