MiiCraft is the latest crowdfunding campaign for a 3d printer. This one looks to have all the necessary variables to be set them apart. Hi-resolution, low cost, opensource software & firmware, reasonable project funding goal. Their 3D Printer is based on SLA technology using Pico DLP projectors & boasts a resolution of 450ppi (56 micron) X/Y axis & 0.1mm (100 micron) single layer Z axis. Build speed is spec'd at 2cm per hour with ip to 3cm per hour possible for some models. Build envelope is 43mm x 27mm x 180mm. Check the campaign out at http://www.indiegogo.com/miicraft