Rancilio Rocky Hopper Mod
thingiverse
A much improved hopper funnel mod for turning Rancilio Rocky into a single dose coffee grinder. Compare to other mods, this one has 1) sturdier wall for overall quality, 2) steeper funnel wall for minimum coffee bean retention, and 3) tighter overhead against the lid to prevent coffee beans from popcorning. Recommend printing in black. Refer to https://www.thingiverse.com/thing:4870676 for a base for the grinder and https://www.thingiverse.com/thing:4663545 for a sprout.
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