I stumbled into Ben Reytblat, CEO of 3D Monstr, at the Bay Area Maker Faire today. He was standing next to a beast of a 3D printer.
The 3D Monstr Raptor will be available through a Kickstarter campaign in the near future. The printer comes with dual extruders, but can be upgraded to quad extruders for an additional $500 ($200 for each extruder and $100 for the quick mount). The base Raptor (dual extruder) will be priced at about $2,500 when it debuts on Kickstarter. It has a hefty build envelope at 12 x 12 x 12 inches (305 x 305 x 305 mm). It ships pre-assembled, is constructed out of aircraft grade aluminum and comes with NEMA 23 motors on X and Y axes.
The Raptor can be folded. Its legs can be adjusted to help with leveling (in case the entire printer is placed on an unlevel surface). It comes with a heated bed, a built-in level for the platform and it is able to operate standalone, through an on-board interface.
The Raptor is only the first in a series of printers 3D Monstr plans to introduce. The other models will be the Dactyl (18 x 18 x 18 inches) and the T-Rex (24 x 24 x 24 inches).
More information can be found on the 3D Monstr website.