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Eureka Atom Chute V1 vs. V2

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  • Eureka Atom Chute V1 vs. V2

    I ordered the V2 chute for my 2017 Eureka Atom a couple of days ago from site sponsor Coffee Parts. It arrived yesterday, so this morning I set about swapping the chute over. Very quick process, if I hadn't stopped to take photos it would have been under 2 minutes. Remove the hopper and tip/vacuum out remaining beans, remove the 3x screws holding the top plate on with a 2.5mm allen key, then remove the 2x screws holding the screen and button plate on with a 3mm allen key, then remove the 3x screws holding the chute in place with a 3mm allen key. Reassembly is the reverse.

    V1 on the left and V2 on the right. (Looks like I forgot to clean the chute when I last cleaned out the grinding chamber a couple of weeks ago.)

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  • #2
    The only difference visible from the outside is that the chute now sticks out a little bit
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    The extra kick on the chute sends the grounds into the middle of the basket a bit better. Previously they started mounding up on the far side of the basket and then fell onto the near side as they built up.

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    This causes issues once the mound reaches the chute, and the coffee falls down the sides of the mound and off the basket. I don't know if this is due to the chute angle impact on grounds trajectory, or if the chute now sticking out means that the mound hits the chute sooner than it did before.

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    However if, like me, you move the basket around to fill into the lowest point in the basket at all times then this isn't an issue, in fact it's actually a good thing because now the grounds come out further away from the grinder so it's easier to get the grounds to fill the near side of the basket. I used to have to wait until the grounds had filled in the back half mostly and would then roll into the near side. As with the previous chute I notice a difference between leaving the portafilter sitting still while filling vs. moving it around in how well and quickly the streams come together with the naked portafilter. I believe this difference has been slightly magnified with the new chute, though I've only made half a dozen shots.

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    • #3
      Here's a shot pulled after letting the grounds fill the basket themselves, then tapping to settle etc as I normally do:
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      • #4
        Here's a shot pulled after moving the basket around while grinding to try and fill it as evenly as possible, then tapping to settle etc as I normally do. The photos were taken at the same time from pushing the button, but you can see the first shot has lightened much faster.

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        The way the two shots came together looked similar enough at the different stages, but the second shot came together faster and blonded slower.
        They were near identical shots, 20.0g in, 39.6g out in 38s for shot 1 and 20.0g in, 39.7g out in 39s for shot 2. They look almost identical too:

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        • #5
          Very informative Ninja, thanks for the photos. Interesting to see your thoughts in a few weeks time.

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          • #6
            Eureka Atom Chute V1 vs. V2

            Good observations. Thanks for the write up. Will look in to it more now. Be interesting to know thoughts on consistency after a few weeks of use.

            I tend to need hands free dosing so I wouldn’t be adjusting / settling mid dose.

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            • #7
              It might be that the decaf I have in it at the moment is more fluffy than the blend I normally keep in it. I'll be playing barista at the baby shower in a couple of weeks so I'll see how it stands up to more rigorous use.

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              • #8
                marksosh was having issues posting photos in another thread, so here's the photos of his Atom 75's chute, it's a bit different again to the standard Atom V1 or V2 chute (I'm assuming larger to handle faster grinding).

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                • #9
                  Well after pumping out 40 coffees in about an hour or so last Saturday I can say that the Atom really shines as a reliably repeatable dosing machine. I could tell the beans in the round 300g hopper were getting a bit low because my volumetric dosed shots would stop 2s faster. Top up the hopper and the shots are back to where I had them set up. The V2 chute is definitely messier in my particular set up. I'm dosing 20g into an 18g basket, so the fluffy grind of the Atom had nowhere to go but off the back. I was giving the portafilter a quick shake up and down about ½-⅔ through the grind to try and settle the mound a bit but it didn't fix it entirely. There's a photo of the aftermath below.

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                  • #10
                    Hi l3n, messy bugga john

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                    • #11
                      John I love that you log in every 12 months or so just to give me a hard time

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                      • #12
                        Hi again, that's a hard time? wait six months, I may be able to think of something Industrial. Hope you and yours are well. John

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                        • #13
                          Eureka Atom Chute V1 vs. V2

                          Originally posted by level3ninja View Post
                          Well after pumping out 40 coffees in about an hour or so last Saturday I can say that the Atom really shines as a reliably repeatable dosing machine. There's a photo of the aftermath below
                          Is that your excess coffee after one shot or 40? :-P

                          I'm not feeling convinced of a need to buy a different chute at this point. Maybe it's my IMS shower screen remorse.

                          However, thanks to this thread I did a full clean of the grinder on Saturday afternoon. This was my first time down in to the base. Easy to get to and pull apart and put back together. Two year anniversary of the grinder. Should do the base more regularly and / or rig up a cover over the Omron timer and power switch.

                          Must remember to use my grinder clean tablets more often too.





                          Last edited by matth3wh; 3 July 2019, 11:21 PM.

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                          • #14
                            Nice video on changing the grind chute here - US Based company site youTube link below.

                            https://www.youtube.com/watch?v=O9OpHTP5Qnk

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                            • #15
                              Originally posted by matth3wh View Post
                              Is that your excess coffee after one shot or 40? :-P

                              I'm not feeling convinced of a need to buy a different chute at this point. Maybe it's my IMS shower screen remorse.
                              That was at the end of the day before I cleaned up. Having used the V2 for a little while now it doesn't hold any advantages for me (except minor improvement in where in the basket the stream of grounds lands as mentioned above). The only reason I can see would be to stop the chute clogging so easily. I don't make big grind changes and have only ever clogged it once when I first got it.

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