The TwoUp is the larger version of the OneUp, the lowest priced 3D printer on the planet. The TwoUp adds 75mm on both the X and Y axis in build area; the Z-axis stays the same at 125mm. At $279 for a self assembled kit, that includes everything you need, the TwoUp is the easy choice to ‘get your feet wet’ and you want the ability to make large objects. All corners of the internet recommend a self built printer as your first printer so you learn the ins and outs, the ups and downs of 3D printing before making a big purchase. Professional quality prints are a reality, equivalent to much more expensive machines at competitive speeds with the ability to expand the build area at a later date for only $79. Each kit includes a very reliable and forgiving extruder, that makes it easy to get great quality prints with minimal effort. The TwoUp is optimized for PLA printing but with the optional heated bed upgrade, ABS and Nylon printing are a breeze! This is a Do-It-Yourself, Self-Assembly kit that generally takes 2-8 hours to assemble based on end user skill level. The only difference between the OneUp, TwoUp and ThreeUp is the build area, every other spec is the same.