i'm sorry for deleting the previous model but i ended up upgrading it with 4 layers instead of 3 so you can now collect your kief, i would suggests printing the 3rd piece before 1,2, and 4, already coded files are available so you can have the correct fine resolution for the small holes on piece 3 or so you keep strength and time on pieces 1,2, and 4 

cubic grinder W storage chamber and keif catcher

cubic grinder 1,2, and 4.stl

this mug is fashioned after a classic barrel mug @thangs3D #thangsworkspace

Blank_12oz_Can_Cup_Rly_v1[1].stl

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nshope06

cubic grinder W storage chamber and keif catcher

Blank_12oz_Can_Cup_Rly_v1[1].stl