Blog with project history: Videos: More pictures: More details about parts: OpeCAD source files: Documentation: Ask questio here: Rostock is a delta robot 3D printer prototype with the following design goals: Build volume: 8x8x16 inches or 200x200x400 mm Footprint: 12x14 inches Print surface: 8x8 inches heated glass which never moves Mass of end effector with two hotends: less than 150g Positioning speed: 800 mm in all 3 directio Positioning accuracy: at least 30 steps/mm in all 3 directio Simplicity: fewer than 200 parts (not including washe, nuts and SMD-mounted electronics) Hardware cost: less than $500 USD Ipiration: search YouTube for "flexpicker" or "adept quattro". Closest ancestor: