The STEMFIE Calibration File is a collection of parts demonstrating several types of fasteners, such as fully-threaded and shoulder screws, spring pins, washers, threaded nuts, and cam-locking nuts. This set also includes a couple of tools for holding and driving the fasteners. All parts are nested into a single compact build plate measuring 104 x 88 mm, which typically takes three hours to 3D-print, consuming 26 grams of filament. Learn more at: https://stemfie.org/scf