Fridge door hinge cam riser

thingiverse

The hinge cam riser is the mechanism by which a refrigerator door will stay open at a certain position, and automatically continue closing once closed a certain amount. These are installed in pairs over the lower hinge pin, with one attached to the door and one attached to the main unit. I designed this to replace the upper hinge cam on the left (freezer) door of a Samsung model RSG257AARS/XAC (part number DA66-00558B). Unfortunately, my 3d printed version immediately failed. This may have been partly due to carelessness during re-installation of the door (my popsicles were melting!) Given that the OEM replacement part cost less than a dollar, though, I couldn't justify taking another chance on my "approximation", which was based on photos of the replacement part from online parts catalogs. Indeed, having received the OEM part, I see that the profile of the cam is not a simple sinusoid as I had assumed. The included .STL file is the version for my specific application. By using the Customizer, however (or by downloading the `.scad` file and opening it in [OpenSCAD](https://openscad.org/)), you can adjust the dimensions to create a custom part for your specific needs. This model could potentially be used for cabinet door hinges, or as a detent mechanism for a rotary control.