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Discussions > Espresso > Grinders -... > Virtuoso Preciso...  
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CraigA
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CraigA
Joined: 19 Dec 2001
Posts: 11,254
Location: Rexdale, Toronto, Ontario, Canada.
Expertise: I live coffee

Espresso: PID/PressureMod 2001...
Grinder: BUNN FPG-2 DBC, Baratza...
Vac Pot: Bodum Santos manual, Yama 5...
Drip: Behmor BraZen, BUNN VPR-APS,...
Roaster: Refurb Behmor 1600, BBQ...
Posted Sun Feb 26, 2012, 11:03am
Subject: Re: Virtuoso Preciso Problem
 

It's a pleasure Nick to always be here & help out any Baratza grinder owners that I can. {;-)

 
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IMAWriter
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IMAWriter
Joined: 4 Jul 2002
Posts: 5,891
Location: Brentwood, TN
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Espresso: Bezzera Strega
Grinder: Forte, OE Pharos,...
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Roaster: Behmor 1600+, CO/UFO combo
Posted Sun Feb 26, 2012, 11:39am
Subject: Re: Virtuoso Preciso Problem
 

Paulraff Said:

Thanks for your response Craig  :-)  I've accepted the WLM invitation. I would love to get any advice you have.

I've also got a prompt helpful response from Kyle at Baratza. The problem with the calibration screw breaking through is not unknown to them but it is very rare. He told me "we use 30% glass filling to further strengthen the part [micro-adjustment ring], this should allow the screw to be tightened (even in the middle of the slot) without deforming the slot and allowing the screw to go too deep".

So far, the good things coming out of this episode are:

(1) Baratza and the local suppliers in Ireland (Marco Beverage Systems and Coffee Angel) are proving themselves to be helpful, knowledgeable and customer-focused.

(2) I'm already finding that I can get wisdom, help and support from the Coffeegeek forums.

(3) I'm learning more about my grinder than simply how to plug in it, fill it up and press the grind button.  ;-)

Posted November 23, 2011 link

I'm going to add a 4th...you have a most patient and forgiving nature, and you are MOST welcome here at CG.

 
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jbviau
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jbviau
Joined: 12 Jul 2010
Posts: 732
Location: Pembroke Pines, FL
Expertise: I love coffee

Grinder: Preciso / LIDOs
Drip: Trifecta MB / Eva Solo...
Posted Fri Mar 2, 2012, 1:19pm
Subject: Re: Virtuoso Preciso Problem
 

jbviau Said:

This happened to me yesterday, but I chalked it up to past-peak beans. Then this morning I was getting gushers using fresh beans 3 macro settings down from my usual sweet spot. I checked the adjustment ring and found it was much looser at the 11:00 position. Colin at Baratza is sending me out a refurbished replacement Preciso featuring two upgrades: a beefed up adjustment ring (reinforced with fiberglass) and a quieter gearbox. While I wait for the UPS guys to saunter across the country with the "new" grinder, I think I'll be able to use the old Preciso (bought 6/7/11, btw) at coarser settings. The press grind still appears good (just checked).

Posted February 22, 2012 link

Update: I got my refurbished replacement a few days ago, and I'm happy with it. I hope any Baratza caped crusaders who might question my motives for posting what follows will take note of that last bit! ;)

After setting up the refurb, the first thing I noticed was that it sounds much different than my old Preciso. Specifically, without beans, it sounds like the old one did when I was grinding for espresso and getting near what I assume was my zero point, i.e. burrs rubbing (or almost). The refurb sounds like this from macro setting #40 on down, but it's significantly quieter when beans are being ground.

Here's a YouTube video demonstrating what I'm talking about: Click Here (www.youtube.com)

NB: the refurb's burrs are *not* touching, and its grind is correct across the range from espresso to press, judging by my eyes and tongue.

Yesterday, I spoke to Kyle on the phone (how's that for accessibility?), and he thought the whirring noise would drop off after a break-in period. I assumed he meant breaking in of the grinder's transmission, for lack of a better word.

About the new gearbox, here's a quote from some promotional material for the soon-to-be-released Baratza Encore that I think applies to the Preciso, too:

"With GB 2.0, Baratza has significantly increased the strength and durability of the drive transmission while decreasing noise. In addition to a new drive shaft, motor mounting plate, and bushings, this change includes a new drive gear made of 15% glass-filled thermo plastic, which is quieter than the prior metal gear, wears better, and is more shock-resistant. We tested it by throwing stainless screws into the burrs, and in every case the motor/gear/burrs stopped dead and the (automatically-resettable) thermal cutout was triggered and the gears were fine. All of Baratza's conical burr grinders manufactured after January 2012 will also have the GB 2.0."

Anyway, I figured I'd post what I know "for the record" in case anyone else receives a refurbished or new Preciso that sounds the same way. And now I'm off to go grind some more of Brown Coffee's Finca Vista Hermosa, Edlina microlot (Guatemala), which is simply awesome!
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CraigA
Moderator
CraigA
Joined: 19 Dec 2001
Posts: 11,254
Location: Rexdale, Toronto, Ontario, Canada.
Expertise: I live coffee

Espresso: PID/PressureMod 2001...
Grinder: BUNN FPG-2 DBC, Baratza...
Vac Pot: Bodum Santos manual, Yama 5...
Drip: Behmor BraZen, BUNN VPR-APS,...
Roaster: Refurb Behmor 1600, BBQ...
Posted Fri Mar 2, 2012, 1:40pm
Subject: Re: Virtuoso Preciso Problem
 

jbviau Said:

Yesterday, I spoke to Kyle on the phone (how's that for accessibility?), and he thought the whirring noise would drop off after a break-in period. I assumed he meant breaking in of the grinder's transmission, for lack of a better word.

About the new gearbox, here's a quote from some promotional material for the soon-to-be-released Baratza Encore that I think applies to the Preciso, too:

"With GB 2.0, Baratza has significantly increased the strength and durability of the drive transmission while decreasing noise. In addition to a new drive shaft, motor mounting plate, and bushings, this change includes a new drive gear made of 15% glass-filled thermo plastic, which is quieter than the prior metal gear, wears better, and is more shock-resistant. We tested it by throwing stainless screws into the burrs, and in every case the motor/gear/burrs stopped dead and the (automatically-resettable) thermal cutout was triggered and the gears were fine. All of Baratza's conical burr grinders manufactured after January 2012 will also have the GB 2.0."

Anyway, I figured I'd post what I know "for the record"  in case anyone else receives a refurbished or new Preciso that sounds the same way. And now I'm off to go grind some more of Brown Coffee's Finca Vista Hermosa, Edlina microlot (Guatemala), which is simply awesome!

Posted March 2, 2012 link

Thanks for this additional & new information Joshua, great to know & keep everyone in the loop. {;-)

I wondered too, but knew when I first saw the pic of the new resin motor mounting plate on the parts list.

Pic courtesy of Baratza LLC.

CraigA: Motor baseplate1_2012-03-02_15-46-26.JPG

 
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jbviau
Senior Member
jbviau
Joined: 12 Jul 2010
Posts: 732
Location: Pembroke Pines, FL
Expertise: I love coffee

Grinder: Preciso / LIDOs
Drip: Trifecta MB / Eva Solo...
Posted Fri Mar 2, 2012, 2:53pm
Subject: Re: Virtuoso Preciso Problem
 

Sure thing! Here's a shot of the refurb with the case off just for grins. I never bothered to peek under the hood of the old Preciso, so I don't know if anything looks different.

jbviau: php3A9VbWPM.jpg
(Click for larger image)
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CraigA
Moderator
CraigA
Joined: 19 Dec 2001
Posts: 11,254
Location: Rexdale, Toronto, Ontario, Canada.
Expertise: I live coffee

Espresso: PID/PressureMod 2001...
Grinder: BUNN FPG-2 DBC, Baratza...
Vac Pot: Bodum Santos manual, Yama 5...
Drip: Behmor BraZen, BUNN VPR-APS,...
Roaster: Refurb Behmor 1600, BBQ...
Posted Fri Mar 2, 2012, 3:15pm
Subject: Re: Virtuoso Preciso Problem
 

No, it'd be on the bottom side of the white gear housing, the new resin baseplate instead of the steel one., 17 posts up from this one.

 
http://twitter.com/CoffeegeekCraig
http://www.facebook.com/craig.andrews.169

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Gig103
Senior Member


Joined: 12 Feb 2012
Posts: 233
Location: Arizona
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Vario
Drip: French press!
Posted Sat Mar 3, 2012, 4:32pm
Subject: Re: Virtuoso Preciso Problem
 

Paulraff Said:

We define the "zero point" as that place where (without beans in the machine) the burrs begin to touch. We set up Virtuoso's to begin to touch between 8-10, then we set the screw in place. The purpose of the calibration screw is to make each of our grinders the same (from the production line).

Posted November 25, 2011 link

I just got a Preciso and I'm not having any problems, but I was wondering about this zero-point thing. With no beans and running, I hear the sound difference around 9 which is in line with what you said. But what does that mean? If they're touching there, how do beans get ground? Do I need to open up the grinder back to 40 when I put beans in and slowly crank back down to 9 for espresso, or can I just drop beans in and not have any problems?
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