This is a hack I put together. I love my hario grinder ( MSCS-2TB ) but when I upgraded to the chemex grinding that much beans per pot just got annoying.
I am creating a reduction gear set similar to the extruder gears I use on my Wades extruder. I really liked the sturdiness of the Lulzbot gears and the drive gear set I'm using are a clone of the lulzbot modified scad files.
Note, this is still a work-in-progress.
For now, I'm starting with drive gears which are simply large enough to fit