Printer brand: LulzBot Printer: Mini Rafts: Doesn't Matter Supports: Yes Resolution: standard Infill: 100% We recommend using supports that "touch build plate only" rather than having supports everywhere. Additionally, while we typically use a 100% infill to ensure water tightness, prints at infill levels as low as 10% were found to be watertight for over 2 weeks. For this print we used black polylactic acid (PLA) filament made and sold by MatterHackers. 3D printed objects were designed with SketchUp Make 2017 available free from Google (http://www.sketchup.com/). Designs were sliced using Cura for Lulzbot (https://www.lulzbot.com/cura), a free software that is based off of the more universal Cura software from Ultimaker (https://ultimaker.com/en/products/cura-software).