Parametric Portafilter Fork for Rancilio Rocky espresso grinder

Late night, trying to load coffee grounds into the filter in order to jump-start my brain with a jetfuel espresso, making a big mess because our Elektra portafilter is too big for the support forks on our Rancilio Rocky grinder. Isn't it time I learn how to use OpenSCAD anyway?

The result: a parametric portafilter support fork. Now anyone with a Rancilio Rocky coffee grinder can generate a support fork for their portafilter by plugging in their filter's exact outer diameter. The STL file