Nsr250 Mc21 Pgm3 Rubber Grommet

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 with a small portion chopped off, as to provide a flat print surface and NO supports. 

TPU will stick extremely well to the PEI sheet, do NOT omit to use kapton tape or glue stick on the surface.

Have fun 

Nick