Turbo-charging a manual coffee grinder

Porlex Mini Grinder

 

Okay, okay, I don't mind the morning ritual of hand grinding coffee beans in a manual, crank grinder, BUT when you've got guests and you're trying to make 4 or more cups of coffee, the quaint hand crank process can become a tedious chore for someone with their pre-coffee anger.

So, I had the idea to use my old drill and a 3D-printed drill adapter to drive it super fast.

Adapter in loco

 

 

 

This was my first time using CAD and a 3D printer in years and was great starter project.  It took a couple tries (first started with just 1/4" hex shank, but fattened it up to 3/8".  I also learned the importance of perimeters and infill and bumped those up to 8 and 100%.

Fusion 360 and STL files are available on Printables.