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Coffee Grinder

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  • #213873
    Peter George
    Participant

    I made this using the CrushGrind coffee grinder mechanism. The grinder works great, but I’m not happy with the way the project turned out. The box is way too heavy looking compared to the turned hopper. Maybe a hexagonal or octagonal base?

    MG_3294

    Peter in
    Biggar SK
    "New York is big, but this is Biggar"

    Attachments:
    #215910
    Hugo Notti
    Participant

    A cube used to be quite standard for these grinders. But actually, I think, the hopper looks too large for the box. So perhaps beads around the sides would help. My first idea was to make top and bottom larger, overlap the sides.

    Dieter

    #219333
    david o’sullivan
    Participant

    i think it looks great to be honest

    "we can learn what to do, by doing" Aristotle

    #222211
    Ed
    Participant

    I like the way the hopper and box relate to each other. How would you feel if the crank was somewhat larger, heavier, and higher and maybe with a knob turned from wood?

    As a technical detail- Did you turn the hopper, inside and out, on a faceplate and then part it off? Is it tenoned into the top of the box?

    #222246
    Derek Long
    Participant

    I like the matched grain, Peter, and the mitered sides. I think it’s a fine box, but I think it would look better with a thicker lid with a larger profile molding around the edge. That would balance it out a bit better, in my opinion.

    Derek Long
    Denver, Colorado

    #223316
    Jim Allen
    Participant

    Peter, I think your coffee grinder is great! I plan to make one like it. Where did you get the grinder mechanism? My wife saw it and really wants one. I think that you worry too much.

    Jim from the mythical State of Jefferson – Oregon side

    #226107
    Peter George
    Participant

    I got the mechanism from Lee Valley. Coffee Mill Mechanism It’s the only place I’ve seen it and it’s the only mechanism I’ve found that actually works. Lee Valley has only been selling it since just before Christmas.

    To turn the hopper, I approached much as I would a bowl. I attached the blank to a faceplate and turned the outside and the tenon that fits into the lid. I then bored the hole for the mechanism and used a chuck to grip inside the hole to turn the inside. The hopper is tenoned into the lid.

    The lid has rebated into the box, so that used up about 3/8 inch of the 3/4 inch thickness. A bead around the top of the box might help with that.

    I was looking at doing a turned handle for it, but I haven’t figured out how the handle is attached to the crank.

    Thanks for all the comments and suggestions. I’ll wait and see if it still bugs me in a few days.

    Peter in
    Biggar SK
    "New York is big, but this is Biggar"

    • This reply was modified 2 years, 10 months ago by Peter George.
    #291561
    Peter George
    Participant

    I added a couple of modifications to make it easier to use. I added some larger rubber feed to the bottom to prevent it sliding around when grinding and a couple of rare earth magnets to hold the top down.

    Peter in
    Biggar SK
    "New York is big, but this is Biggar"

    Attachments:
    #309091
    sodbuster
    Participant

    I love the continuous grain around the sides. On proportions – I suspect there is a natural limit to the width of the sides, depending on the size of the user’s hand. Even with rubber feet I would likely want one hand on the base as I turned the handle.

    That said, how would you feel about a slightly wider, and slightly shorter, base-box? Messing about with some cardboard mockups might give you proportions that please your eye. (I’m thinking of Tolpin’s ‘by hand & eye’ here, of course).

    It’s a great piece, both as woodwork and as a coffee-making tool.

    Cheers!

    #309096
    Peter George
    Participant

    @sodbuster
    I was constrained in the height of the box by the size (length) of the mechanism. I designed it to grind directly into the basket from my coffee maker.

    If I was to make another one, I think I would go for a smaller hopper and a hexagonal or octagonal base. I’d get thicker stock so I could resaw it and match the grain continuously around the box.

    However the grinder works well and makes excellent coffee! 🙂

    Peter in
    Biggar SK
    "New York is big, but this is Biggar"

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