Some additional math on this printer. According to http://www.gizmo3dprinters.com.au/#!...x-series/c1dug here are the resolution specs of the highest-end machine:

Maximum build platform 400mm x 250mm
Maximum build height 850mm
Maximum XY resolution 35 micron

The DLP project is unlikely to have resolution higher than FHD (1920x1080)

If we look at the largest dimension, either 400mm / 1920 pixels = 208 um/pixel is the best possible resolution across the maximum build area, or 1920 pixels * .035 um/pixel = 67.6 mm is the largest part that can be made at full resolution. If my math is right, it would be nice if Gizmo3D made this clear up front to avoid customer confusion.

Ben