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KitchenAid Proline grinder w/mazzer mini burrs
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SpromoSapiens
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SpromoSapiens
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Posted Wed May 4, 2011, 9:27pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

untrue burr mount -- you mean the probably-warped spinning burr carrier? Could there possibly be a partial-micro-shim solution to that, forgoing the lathe? A shred of foil under 6 o'clock, perhaps...

Threads vs micro-adjustability: This is an issue I knew I'd be settling for, to some extent, no matter what, as any grinder that occupies precious kitchen-counter real estate right now is going to have wear several hats; my girlfriend's pour-over, the occasional press pot, my beloved aeropress, and of course the 'spro. In my price range, I knew that kind of versatility would mean fat threads. I'm sure once it's been zeroed and the dial's been etched with a few indications thereabouts, whatever little increments I can muster will suffice for a decent daily double or two on my modest machine.
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gime2much
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Posted Wed May 4, 2011, 11:05pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

SpromoSapiens Said:

untrue burr mount -- you mean the probably-warped spinning burr carrier? Could there possibly be a partial-micro-shim solution to that, forgoing the lathe? A shred of foil under 6 o'clock, perhaps...

Posted May 4, 2011 link


I suppose you could try it but why halfass something?

 
Dan Brewer
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SpromoSapiens
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SpromoSapiens
Joined: 26 Feb 2010
Posts: 102
Location: Boise ID
Expertise: I live coffee

Espresso: Riviera Eagle, '91 Livietta,...
Grinder: Vario, KA ProLine, Sozen...
Drip: Clever, V60
Roaster: Behmor 1600
Posted Thu May 5, 2011, 6:43am
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

Just in the absence of a lathe, I'm sayin'... $.05 of foil vs $500 piece of shop equipment (or the search for access to one) -- Not necessarily a half-assing, but a stop-gap, just a way to make do. If pure handiwork fun or curiosity were the sole motivation, I'd agree to half-assing nothing, but in my case, it's ultimately a thriftiness drive with limited resources. If there's a workable short-cut to the sweet spot, at this juncture I'm bound to take it. I'm hoping the Proline with mods is a financial shortcut to a ballpark proximity of MM-quality grind.
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SpromoSapiens
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SpromoSapiens
Joined: 26 Feb 2010
Posts: 102
Location: Boise ID
Expertise: I live coffee

Espresso: Riviera Eagle, '91 Livietta,...
Grinder: Vario, KA ProLine, Sozen...
Drip: Clever, V60
Roaster: Behmor 1600
Posted Wed May 18, 2011, 1:25pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

Making some headway on this... Mr. Gime2much, hope you're still interested...

I've got my ProLine, did the factory recommended "espresso adjustment" and one of the popular stepless mods (inverting the stops and teflon'ing the threads for tightness & burr stability). I'm happy with the progress in the grind so far. My espresso machine has been on the fritz (parts should arrive shortly) so I haven't been able to test it for espresso quality, although I have been using it with the aeropress, for which I favor a considerably fine grind. One of the advantages of the aeropress is its efficacy in examining the grind through the distinct layering of the puck after brewing. I can see it's still quite inconsistent as compared to my hand-grinder, but the fineness is reasonable and the fines are minimal. So far, so good!

Got a great deal on an old Craftsman rotary tool and just need the right bit in order to start spittin' sparks, although I thought I'd check in again before doing anything irreversible. There's no need to flatten the burr-centering bevel right now as I'm not yet swapping the burrs, but I'm thinking about the "shoulder reduction" we were talking about before. When I "zero" the stock burrs according to KA instructions, I hear a rhythmic zing-zing-zing sound; I figure if the burrs were actually touching it would be a more consistent sound, so I imagine what I'm hearing is the sound of those shoulders rubbing something at the back of the chamber before the burrs can actually touch. And, just to be totally clear, by shoulders I mean the two things protruding from the spinning carrier on the outer edge of the burr plate... Yes? So, if I can shave those puppies down by a couple mm apiece, it would allow for true zeroing of the stock burrs, and therefore some serious powder fineness, yes?

I noticed in your update from last year you mention a 1/16" reduction in the auger in order to zero the MM burrs after the transplant. Do you think an auger reduction would be beneficial to me at this stage as well?

SpromoSapiens: KAprolineAuger.jpg
(Click for larger image)
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gime2much
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Joined: 10 Dec 2004
Posts: 1,965
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Wed May 18, 2011, 4:30pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

You might be heading into the danger zone. Mazzer burrs (most burrs actually) have a flat area that will touch before the "teeth" will which allow zeroing with no damage. The Kitchenaid burrs do not. If those burrs touch while running, I think you are inviting disaster.

The wipers (ears) are ok as they are. Its the shoulder on the tail end of the auger where it inserts into the drive that bottoms out.

 
Dan Brewer
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SpromoSapiens
Senior Member
SpromoSapiens
Joined: 26 Feb 2010
Posts: 102
Location: Boise ID
Expertise: I live coffee

Espresso: Riviera Eagle, '91 Livietta,...
Grinder: Vario, KA ProLine, Sozen...
Drip: Clever, V60
Roaster: Behmor 1600
Posted Wed May 18, 2011, 6:42pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

Ah. Dang good thing I asked. Does that mean I'm off-base with my interpretation of the stock "zero" sound, then?
And -- the shoulder... are we actually talking about the notch that I've circled below? (Not the ears, and not the very tip of the auger where the spring sticks out)?

I suppose the idea here is also to be especially conservative and careful in deciding on how much to shave off of wherever, in order to let the burrs come closer, but not too close...

SpromoSapiens: shoulder.jpg
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gime2much
Senior Member


Joined: 10 Dec 2004
Posts: 1,965
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Wed May 18, 2011, 7:32pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

Just south at the last bit of the auger. Look close and you will see that the auger is aluminum and the shaft is stainless(?). I took off ~1/16 of the aluminum. Color one of the burrs with a magic marker and if the burrs do touch, the mark will be gone at that point. The ones I modified never showed signs of touching, only the point of the auger that I removed.

 
Dan Brewer
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SpromoSapiens
Senior Member
SpromoSapiens
Joined: 26 Feb 2010
Posts: 102
Location: Boise ID
Expertise: I live coffee

Espresso: Riviera Eagle, '91 Livietta,...
Grinder: Vario, KA ProLine, Sozen...
Drip: Clever, V60
Roaster: Behmor 1600
Posted Wed May 18, 2011, 7:59pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

I see. So, I'm targeting the bit now circled below -- that very last bit of the aluminum curl? This will allow the whole assembly to seat more deeply into the grind chamber? Is it necessary to do it in a way that smoothly diminishes the new ending point of the auger's curl so as to resemble the original pattern, or does it matter if the end is left kinda rough/sudden?

Thanks for the magic marker tip. That's brilliant. If it turned out I removed too much and the burrs were actually able to make contact, this wouldn't be the end of the world, though, right? I'd just have to be careful never to allow it to happen in the course of regular use and adjustments to the grind...

SpromoSapiens: auger shoulder.jpg
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gime2much
Senior Member


Joined: 10 Dec 2004
Posts: 1,965
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Wed May 18, 2011, 8:08pm
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

Yep. that's the spot and the reason. Can't say about the cut as I used a lathe.

If you cut off too much and it causes you grief, adding small washers to build it back out might work.

 
Dan Brewer
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Glenn66
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Joined: 6 Feb 2012
Posts: 2
Location: Qatar
Expertise: I like coffee

Posted Mon Feb 6, 2012, 4:45am
Subject: Re: KitchenAid Proline grinder w/mazzer mini burrs
 

I have the KA artisan 5KCG100, will this mazzer mod work on this model?
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