2015: Andrey made a Monster (it over fills his two car garage) 3D printer that extrudes cement. And that was just the model for the full sized one! He started print "tiny home" sized buildings, but the current version prints full sized suites for resort hotels. And what driver is running this beast? Our THB6064AH driver, of course!

You can see it actually putting down layers at: http://www.youtube.com/watch?v=HAcKxNMoVJ0

"His big printer needed big NEMA34 stepper motors, far beyond the current capacity of the stock RAMPS stepper drivers. [Andrey] got in touch with [James] at MassMind who helped him with an open source THB6064AH based driver. [James] even came up with an adaptor cable and PCB which makes the new drivers a drop-in replacement." http://hackaday.com/2014/05/29/man-builds-concrete-3d-printer-in-his-garage/

'For a big printer, I need special drivers that can handle the heavy weight of the machine as well as be compatible with the software/firmware. The best fit I found was from James Newton's Mass Mind. These drivers ended up being the only ones to work properly with Marlin Firmware (I sampled other drivers, which failed), and were powerful enough to move such a huge printer.' Rudenko added. http://americankabuki.blogspot.nl/2014/09/minnesotan-man-builds-worlds-first-3d.html

Andrey's machine was last seen in the P.I. printing 2-bedroom villas for a resort hotel there. The extruder has been upgraded (very wiz-bang now!) and the machine is bigger now, but still running fast and smooth. http://makezine.com/2015/09/14/3d-printed-2-bedroom-villa/