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Thread: Eureka Atom Chute V1 vs. V2

  1. #1
    Senior Member level3ninja's Avatar
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    Eureka Atom Chute V1 vs. V2

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    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.)

    20190615_083629.jpg 20190615_083639.jpg 20190615_083656.jpg 20190615_083726.jpg 20190615_083827.jpg
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  2. #2
    Senior Member level3ninja's Avatar
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    The only difference visible from the outside is that the chute now sticks out a little bit
    20190615_084636.jpg

    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.

    20190615_084647.jpg

    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.

    20190615_085011.jpg

    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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    Senior Member level3ninja's Avatar
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    Here's a shot pulled after letting the grounds fill the basket themselves, then tapping to settle etc as I normally do:
    20190615_120040.jpg 20190615_120051.jpg 20190615_120056.jpg
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    Senior Member level3ninja's Avatar
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    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.

    20190615_120421.jpg 20190615_120426.jpg 20190615_120435.jpg

    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:

    20190615_120628.jpg
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  5. #5
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    Very informative Ninja, thanks for the photos. Interesting to see your thoughts in a few weeks time.
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    Senior Member matth3wh's Avatar
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    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 wouldnít be adjusting / settling mid dose.

  7. #7
    Senior Member level3ninja's Avatar
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    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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    Senior Member level3ninja's Avatar
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    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).

    Attachment 22559 Attachment 22560 Attachment 22561 Attachment 22562

  9. #9
    Senior Member level3ninja's Avatar
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    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 Ĺ-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.

    20190702_181241.jpg
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    Hi l3n, messy bugga john
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  11. #11
    Senior Member level3ninja's Avatar
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    John I love that you log in every 12 months or so just to give me a hard time

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    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. #13
    Senior Member matth3wh's Avatar
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    Eureka Atom Chute V1 vs. V2

    Quote 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; 3rd July 2019 at 11:21 PM.
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  14. #14
    Senior Member matth3wh's Avatar
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    Nice video on changing the grind chute here - US Based company site youTube link below.

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

  15. #15
    Senior Member level3ninja's Avatar
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    Quote 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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  16. #16
    Senior Member LeroyC's Avatar
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    Could you use a portafilter funnel with it?

  17. #17
    Senior Member level3ninja's Avatar
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    Not without cutting a bunch of the front of the funnel out to fit around where the portafilter rests under the lip that holds it on the fork. Unless it was a short funnel... I'll have to have another look

  18. #18
    Senior Member matth3wh's Avatar
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    In general Iíve been wondering about grinding in to a dosing cup. Then transfer to PF. The well fitting ones then negate the dosing funnel and supposedly helps with distribution.

  19. #19
    Senior Member level3ninja's Avatar
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    Might have to give the cup I got recently a try with the Atom. My initial thoughts are that it won't do much as I find grinding direct and then the Perger tap method to be pretty good. Always room for improvement I suppose.

  20. #20
    Senior Member LeroyC's Avatar
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    Quote Originally Posted by level3ninja View Post
    Not without cutting a bunch of the front of the funnel out to fit around where the portafilter rests under the lip that holds it on the fork. Unless it was a short funnel... I'll have to have another look
    Yeah itís a bit hard to tell in the photo, but I get the impression thereís not a lot of space. You need a low profile one that doesnít flare out too much.

  21. #21
    Senior Member level3ninja's Avatar
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    Just did some measuring, as long as the funnel doesn't stick out from the portafilter sideways more than a couple of mm, you've got 19mm above my BES920 spouted PF with a VST basket to fit a funnel, leaving you ~1.5mm to get it all in and out, as well as using it to push the PF button to start the timed dose.

    20190704_204506.jpg

    20190704_204527.jpg

  22. #22
    Senior Member level3ninja's Avatar
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    The cup fits pretty well, I'll give it a go in the morning

    20190704_205417.jpg
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