I have a mac running OS 10.12.6 , and version 1.8.6 of the B9 software, on an older 1.1 version of the printer. I've calibrated it several times, and even brought in someone else to help as another set of eyes. When going through the calibration steps, the table is definitely flush with the vat, and the screws tightened into place. However, when it comes to actually print, it doesn't go down as far. I can see it drop a bit from the home position, but not far enough that the initial layer can attach to it. As a result, it doesn't, and I end up with a very well baked thin layer, but nothing else.
Has anyone run into these problems? Any suggestions?