STL and 3MF files for 3D printing the Pgm-III rubber grommets. You can download the files in the below link : Nsr250 Mc21 Pgm3 Rubber Grommet - printables.com Description This is the “GR2” rubber grommet that along with a metal bushing and a screw, keeps the PGM-III unit in place. A suitable material for the application is TPU (thermoplastic polyurethane), a flexible filament with excellent vibration-damping properties, high toughness and chemical resistance. The grommet will be a little bit stiffer than the OEM part, so if you wish you can use TPE filament instead. Please, tune your printer with the below settings for optimal results : Plater : Print Settings : 0.15mm Quality Filament : SainSmart TPU Supports : Everywhere Infill : 10% Layers and Perimeters : Perimeters : 1 Solid layers, Top & Bottom : 5 & 4 Infill : Top and Bottom fill pattern : Concentric It is also possible to print the grommet on its side wi...