Herb Grinder (durable + printable redesign)

I found several grinders on this site that I could not get to print well from my fusematic (it would fall apart while i tried to clean excess away), so i designed one with more durable teeth that seems to work quite well.

Update: I'm beginning to think about improvements to this design, such as a cavity for a small screen to filter out fine particles and multiple chambers to accomodate this. If anyone feels competent enough with design software and wants to make that a reality, please feel f