PDMS layer life time?

[Cheuk_Ming_Wong]

Dear Joao_David,
I guess you have the laser malfunction as I do. Please do the laser test with the following link: You will find that whether the laser or silicon problem.

Are your prints failing because your laser focus is degraded?

For those of you having repeated print failures, you might want to try the Laser Spot Test yourself to see if your laser is in focus. In theory, the spot should be very small and sharp with no halos like those in the attached photos. I’m using a Mac so I only have the Mac instructions. Maybe someone else can post the PC instructions. Here’s how you do the Laser Spot Test on a Mac: Remove the build platform and then the resin tray. Cut a piece of white paper the size of about 7 x 7 1/2 inc…

MAC User, inside Terminal:
…//Applications/PreForm.app/Contents/MacOS/PreForm.exe -diagnostic
Window 8 User inside command line:
C:\Program Files(x86)\Formlabs\PreForm\PreForm.exe -diagnostic

Once the PreForm is opened, you will find a new menu titled with “Diagnostic” on top right. Click on it. You will get it.