Residue-Free Herb Grinder

thingiverse

Herb grinder that finely pulverizes herbs to a dust. The design isolates the bearing face from where herbs are ground - all plastic-on-plastic friction occurs around the outside, and gaps around the bearing face allow any residue to escape harmlessly. For extra safety, I recommend using PLA here, due to its non-toxic properties. The very first herb grinder I printed is still working perfectly, nine months later, after regular use. I also suggest ensuring your retraction settings are well adjusted, as the teeth require frequent retractions.