Burr Hyper-Alignment: Insane Precision 

Bienvenue mes enfants! I got the dial indicators and lapping plates going, and the burrs on the new Eureka Single Dose are now parallel to within a couple of microns. And what have I accomplished? You be the judge :)

Came for the coffee nerdiness.... stayed for the bone dry sense of humour Keep it up!

You’ve got some of the best coffee related content on RU-vid. I always look forward to your next drop. Especially excited about your upcoming v60 video(s).

Yeah, when you brought out the lapping stone and then the calipers I knew I was home.

Yummy, I bet your espresso has a nice subtle hint of honing fluid, and the nice acidic punch of swarf.

I really enjoy your videos. Particularly the tutorial nature to them. You’re by far me favourite coffee RU-vid channel. I actually like the way you do these tutorials so much that I think you could do similar things in areas other then coffee. I haven’t found any other RU-vid channel that manages tutorials like you do. Keep it up!

Love the thumbnail title! Looking forward to the V60 video as well!

Thank you! I had a problem where two sides of the burr were close, and two far away, so I couldn't align with a simple shim. Sanding first, and then shimming solved the problem.

Hugely support your endeavours. Did the same shimming customisation in line with your guidance for my chrono model - seems like it somehow contributed to the evenness of the particles distribution but mainly added a bit more calmness to my ocd. Looking forward to the funnel dripper comp so to have some inspiration for my moccamaster mods with v60

Hi, I used to own a Specialita which I alligned (with special thanks to your video:). I upgraded it to an Oro after watching your video where you mentioned all issues are fixed. Having it received and tested today, I confirm that this is the case. It is extremely silent with no vibration issues, no problems with the equipments supplied and producing a superior espresso to Specialita using my Bianca. Checking both of grinders in detail, I see a substantial difference in fine range. Using my hand just like you do, I find the points where burrs are touching. And from that, I check the setting where both grinders give me delicious espresso 18/38gr in 30 seconds with my favorite Natural Etiopian Boreta beans: In Specialita, difference between zero point and my espresso set point is less than a quarter turn, while with Oro it needed more than a half turn. Adding this on top of the fact that my Specialita burrs showed some strange patterns with marker which was not quite possible to fix (because burr was not completely flat within itself), I assume my Oro burrs should be in better condition from factory. Do you agree? And could you also kindly check how much of a turn is required in your case from zero point to espresso set point? Depending on your answer, I will check allignment with my new Oro and see if I can make it even better. Because I am a geek too, who will be able to sleep better after doing this:) Thanks again for the great informative videos you are shooting for us.

I really like your video style. May you do a further video regarding home roasting in the future?:)

Is that 'boom' in the intro taken from the start of the awesome Dan Carlin Hardcore History podcast - for those obsessed with that podcast (yep that's me) it sounds very similar.

Thank you for this awesome coffee content! ☕ Next level burr alignment 👌 I don't have the guts to perform this procedure myself though haha. I'll stick with shimming for now lol. Looking forward to your tasting experience with this grinder. The burrs delivers tasty espresso from my experience and I still have to try it for filter brews. They could have put more effort on the quality of the single dosing mod components. Cheers!

I enjoyed the vedio although for my current level of a coffee geek.. I think my eureka SD is doing just fine for an espresso grinder.. And from the figure "8" sharpening method i can tell that you have a woodworking background 😜

Great content as all your videos! I love the detailed explanations and I just love the fact that you sound like Walter white 🤣

Really nice job. I have the Eureka Single Dose. I think I will give it back. There is coffee going into the grinder itself and the blow doesn’t really work. And it’s horrible for filter coffee brews.

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have you considered running the grinder outside of the housing and using some sort of high-speed camera to view how well the burrs stay aligned during operation?

Spent 4 hours on my brew pro. Didnt get past 70% alignment

Amazing video! even though a little confusing for me with all the markings.. What i want to ask is, i opened my silenzio for a quick cleaning. The thing is i never did any markings to put them back the way they are and now i dont know whats going on and im getting alot of retention all of a sudden. From putting in 17grams and getting 16.9, i now get 13-14 grams and the rest are stuck. I bang on it a bit and maybe another gram or 2 will come out but hardly what i put in.. Please help

On df 64 i have a question, is the "touching" or zero point at first sound of burr contact or all the way till it stops. I can tighten it and feel a first rub while it still moves quite freely.

Hi, thank you for all information about eureka ! just ordered xl, does some other burrs also fit or just eureka espresso and filter burrs? Did you try filter burrs for espresso ? Thanks

This title 😆

Maybe I don't fully understand the geometry of the burrs, but doesn't the polishing of the flats indeed sharpen *some* of the edges which engage/cut some of the grinds? I'm thinking of the particles which are already partly ground and are barely larger than the grind setting. Don't they engage those very edges? Not that it matters in the slightest, :⁠-⁠)

I think there's an alignment method where you sand down the burr carrier part, I'm not sure if sanding down the top ledge of the burr is really going to make much of a difference.

It's not entirely true that the burrs are not sharper. The small ones along the edge that you polished will be.

“Bearing ball.” The bearing ball is what makes a ball bearing a bearing, but a ball bearing is not the same as a bearing ball.

I’m running into an issue with finding different burrs for my Rancilio Rocky. Have you thought about doing a video where you machine new holes for a different size set of burrs?

Amazing content, as per usual. Unrelated to the video, but what do you think of the df64. I am considering buying it or the eureka specialita. I know the df64 has some workflow challenges that the specialista does not have, but this is something I may be willing to forgo if the df64 produces a superior grind. Your thoughts would be helpful I am sure.

Can conical burr grinders have the same problem? Seems like a lot of effort to maintain a new product.

JerryRigEverything.. Is that you?? 😅

Could you do an alignment for the DF64

The more videos you do about this grinder, the less I am interested in it.

Find a shop with real grinders that grind for free and you will have no problems.