Apple, shelled, reference part for life cycle assessment

thingiverse

This file serves as a benchmark for comparing environmental effects of production across various 3D printers and some CNC mills. By creating the same component, you can make fair assessments of printers with vastly different materials, print times, print quality, etc. If you want to measure energy usage, material waste, and other impacts of your 3D printer, feel free to use it and compare it to academic studies on nearly a dozen other machine and material combinations. The part is a thin-walled curved container; it was selected as representative of most AM print jobs for prototyping injection molded plastic containers. It's designed to enable print quality testing by containing curves, overhangs, and towers to evaluate dimensional precision, warping, resolution, etc. Printing two of these parts, the pegs and holes on the bosses (towers) should fit together snugly, allowing tolerance testing. This part was created to facilitate "apples-to-apples" comparisons of 3D printers or other technologies like CNC milling or injection molding.