A 3D-Printed Coffee Grinder

It’s safe to say that a Venn diagram of Hackaday readers and coffee drinkers would have significant intersection, many of you will be lovers of the bean. Some of you will be happy enough with a spoonful of instant granules and a bit of boiling water, but among your number there will undoubtedly be owners of significant quantities of coffee-related machinery and paraphernalia.

If your coffee enthusiasm extends to grinding your own direct from the bean, then [Christian Pederkoff]’s project should hit the mark, he’s created a rather neat 3D-printed coffee grinder. Sadly the creation of a steel burr and ring was beyond his 3D-printing capabilities so those parts come from a commercial grinder, but the housing, shaft coupler and hopper are all from his printer. Power is from a conveniently available source, he’s made use of an automotive windscreen wiper motor. The whole is a straightforward and easy-to-assemble unit that we think would sit well alongside many readers’ coffee making equipment.

If coffee projects are your thing, we have a few for your entertainment. Another not quite so neat enclosure for a coffee grinder, for example, or a tea-light-powered filter coffee machine for power cut beverage satisfaction.

16 thoughts on “A 3D-Printed Coffee Grinder

  1. grinding appears to be contained between purchased metal parts
    no plans dust issues

    l just wonder how adjustable it is

    if yer an espresso snob
    (like me)
    super fine adjustability is crucial

    and if one is buying them anyway
    why not get ceramic burs
    for superior grinding?

  2. 3D printed Coffee Grinder (housing).

    There are many advantages FFF gives you over traditional manufacturing that this design is unable to take full advantage of.
    Shareability, collaberability, scalability, mechanical complexity reduction, instantly addressing problems without involving annoying and long term unreliable supply of specialty machine matching coffee burrs.
    Massive TCO benefits.

  3. That’s a neat little project! I have a tremendous love for coffee and I see a few possible improvements. Most importantly, there’s a lot of stress on the burrs once you start actually grinding. Those couple of threads won’t be able to take that abuse very long. More threads would be better, but a larger diameter would be better still.

  4. I have found that flavored beans tend to gum up a grinder.
    I love my mid-century art-deco Kitchen Aid grinder, all metal and glass. Together with a Melita cone/filter and a repurposed free “$ pod $” heater-pump, I get a great cup.

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