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Date: 24 Nov 2006 09:34:30
From: Danny Joe
Subject: Rocky vs MACAP
I made a video (call me Woody Allen) so you can hear the difference in
the two grinders.

you can see it on youtube:

http://www.youtube.com/watch?v=nC1W1b8BLYE

It is sort of jerky. Sorry about that.

d (altman I am not) j





 
Date: 27 Nov 2006 16:36:03
From: Danny Joe
Subject: Re: Rocky vs MACAP

Nicolas Morais wrote:
> Hi,
>
> I have a M4 and since I change from french press to espresso every
> week day, I sometimes get a very high pitch squealing noise when I
> return to the espresso setting.
>
> If I fiddle with the hopper I can also tune down that noise.
>
> I imagine it's some chaff stuck between the flat part of the burr
> disks that cause some friction noise --- To get rid of that, I just
> bring the burrs closer until the culprit is worn out and go back the
> the espresso setting (I my case, from 4 to maybe 1.5 and back to 4),
> then the grinder purrs again. But that's only when it's running on
> empty, nothing to worry about.
>
> I assume it's the same for you, since once you disassembled, cleaned and
> re-assembled it, it did purr.
>
> Nimo

That sounds likely.

Have you tried using one of those guitar speed tuners to move the thumb
screw quickly? I have not yet bought one, but it seems like a good
idea.

Thanks

d (I don't play guitar) j



 
Date: 27 Nov 2006 18:10:41
From: Nicolas Morais
Subject: Re: Rocky vs MACAP
Hi,

I have a M4 and since I change from french press to espresso every
week day, I sometimes get a very high pitch squealing noise when I
return to the espresso setting.

If I fiddle with the hopper I can also tune down that noise.

I imagine it's some chaff stuck between the flat part of the burr
disks that cause some friction noise --- To get rid of that, I just
bring the burrs closer until the culprit is worn out and go back the
the espresso setting (I my case, from 4 to maybe 1.5 and back to 4),
then the grinder purrs again. But that's only when it's running on
empty, nothing to worry about.

I assume it's the same for you, since once you disassembled, cleaned and
re-assembled it, it did purr.

Nimo


 
Date: 27 Nov 2006 13:50:15
From: Danny Joe
Subject: Re: Rocky vs MACAP

Ed T wrote:
> "BoldJava" <davidborton@gmail.com> wrote in message

> >
> All well and good but what does this have to do with Danny Joe's noisey M4.
> Danny Joe: The M4 you received from Chris is defective. It sounds like the
> motor has
> burned out. In fact if I had to guess I would say that the previous owner
> ( the person who returned it to Chris as defective) accidentally let the
> grinder run for several hours (due to its incredibly quiet operation) and
> burned the motor up. If the M4 is still under warranty you should return it
> at once and demand a properly functioning unit.
> Ed

Thanks all for the advice.

It is not the motor. This is where it gets strange:

If I disassemble the machine (as per the excellent instructions above)
and turn on the motor without the top burr in place, the machine is
perfectly quiet (close to it, anyway)

I then reassemble the machine, and leave it at about 2 -1/2 clicks from
zero. Again, perfectly quiet.

I then grind ONE batch of beans (about 17 g - enough for one double
shot) and the high pitched whine returns. I can fiddle with the plastic
collar and get it to quiet down some, but it never really goes away.

I called Chris and he is more than happy for me to send it back and
take a look at it, but I hope to be able to figure this out from here.
(and not losing the machine for a couple of weeks). I called up there
and they don't know what it could be, with these symptoms.

I will post some more movies on You Tube when I have the chance -
probably tomorrow night.

Any other ideas? This has me stumped.

Danny (quite quiet, for a while) Joe



 
Date: 25 Nov 2006 17:26:29
From: BoldJava
Subject: Re: Rocky vs MACAP
>>>...When the MACAP arrived, I was unable to obtain a gind courser that
all-purpose. It wasn't difficult to adjust once figured out. Unplug,
take
off the hopper; take off the hopper retaining pin completely. The
grind
adjustment ring will now rotate freely beyond the stop points. . . >>>

Thanks for the instruction. My Macap 4 came last week and it needs to
be adjusted.
I read thru the instructions twice, looking for directions. Nothing
there.

I would agree with you...you think it would come better adjusted or if
not, at least
provide some directions.

On the other hand, the grind is the finest, most consistent I have
seen. I too have
the doserless stepped unit and the coffee grinds come out 'fluffy,'
without any
clumping. Quite a machine.

DB



  
Date: 25 Nov 2006 23:13:32
From: Ed T
Subject: Re: Rocky vs MACAP

"BoldJava" <davidborton@gmail.com > wrote in message
news:1164504389.106424.81500@14g2000cws.googlegroups.com...
>>>>...When the MACAP arrived, I was unable to obtain a gind courser that
> all-purpose. It wasn't difficult to adjust once figured out. Unplug,
> take
> off the hopper; take off the hopper retaining pin completely. The
> grind
> adjustment ring will now rotate freely beyond the stop points. . . >>>
>
> Thanks for the instruction. My Macap 4 came last week and it needs to
> be adjusted.
> I read thru the instructions twice, looking for directions. Nothing
> there.
>
> I would agree with you...you think it would come better adjusted or if
> not, at least
> provide some directions.
>
> On the other hand, the grind is the finest, most consistent I have
> seen. I too have
> the doserless stepped unit and the coffee grinds come out 'fluffy,'
> without any
> clumping. Quite a machine.
>
> DB
>
All well and good but what does this have to do with Danny Joe's noisey M4.
Danny Joe: The M4 you received from Chris is defective. It sounds like the
motor has
burned out. In fact if I had to guess I would say that the previous owner
( the person who returned it to Chris as defective) accidentally let the
grinder run for several hours (due to its incredibly quiet operation) and
burned the motor up. If the M4 is still under warranty you should return it
at once and demand a properly functioning unit.
Ed





 
Date: 25 Nov 2006 18:12:00
From: Lazarus
Subject: Re: Rocky vs MACAP
Sounds like your MACAP burrs are rubbing. My M4 (stepped) dosserless has
the low frequency motor sound as yours, but not the chatter metal whine.

When the MACAP arrived, I was unable to obtain a gind courser that
all-purpose. It wasn't difficult to adjust once figured out. Unplug, take
off the hopper; take off the hopper retaining pin completely. The grind
adjustment ring will now rotate freely beyond the stop points. I rotated
mine (loosened) about 2/3 turn which raises the top burr further from the
stationary bottom burr. It's very smooth; nothing to force. I then
relocated the hopper retaining pin in one of the three holes that affords
nearly a full 360 degree rotation of the grind setting wheel. Lastly, I
unscrewed (three Philips) the black grind setting indicator wheel with
numbers and reseated that so the numbers correspond best with the actual
grid setting. For espresso, grind setting is now about 2.2, All-purpose
about 5.8, Urn about 8 on the wheel... when it first arrived, espresso was
between 5 and 6. It puzzles me that the MACAP arrived requiring adjustment,
and zero instructions on how to do that.

I had the opportunity to use a Rocky grinder; the MACAP is in a higher
league - and should be for nearly double the price. I thought the Rocky was
not as forgiving (sounding) when it's burrs were close enough to touch. I
also thought that the Rocky's finest setting, just before noticeable burr
rub, was not fine enough. The MACAP will go almost to flour consistency
before nothing comes out, and no burr rub - the hopper retaining pin stop
does not allow the grind setting wheel to go low enough for the burrs to
grind against eachother. The MACAP's hopper is not as impressive as the
motor assembly. It's made of the type of plastic that's clear but brittle.
Be careful to align the hopper retaining pin-screw and hopper pin hole; the
retaining screw will seat using hand threading. I chipped mine because the
retaining screw nipped an edge of the hopper's hole, not realizing that the
pin will seat easily; I torqued on it with a screw driver - chink. The
Rocky was good, but the MACAP is awsome. Amazing to me, and it must be the
grinder, but brewed regular coffee (APG) is better after being ground by the
MACAP compared to my previous burr grinder, or the store's bulk grinder.
It's obvious, there is less coffee dust in the grind with the MACAP.

My opinion about >stepped< version of the MACAP 4 is that it's grind setting
increment is just subtle enough (and finer than the Rocky). I can
understand why a stepless would be ultimately better if a single base grind
setting is maintained, ie: for espresso, but I've not felt, thus far,
limited by the stepped version. Dependant upon the beans, etc., I have
adjusted the fineness between 1.9 and 2.2 - a three "click" range for
espresso. Dose amount and/or tamp pressure adjustment on my part seems to
fill any gap between grinder settings. If I were a dosing, tamping machine
with exact consistency, swapping beans often, or had extreme humidity
fluctuations, I could understand the stepless preference.





 
Date: 24 Nov 2006 12:15:58
From: Danny Joe
Subject: Re: Rocky vs MACAP

I- >Ian wrote:
> On 24 Nov 2006 09:34:30 -0800, "Danny Joe" <dpiette@gmail.com> wrote:
>
> >I made a video (call me Woody Allen) so you can hear the difference in
> >the two grinders.
> >
> >you can see it on youtube:
> >
> >http://www.youtube.com/watch?v=nC1W1b8BLYE
> >
> >It is sort of jerky. Sorry about that.
> >
> >d (altman I am not) j
>
> Nearly jumped out of the chair on the MACAP! WAY louder than here. I'd
> guestimate mine is about half as loud as your Rocky, using the click
> of the power switches and the level of the voice as a guide.

Thanks, Ian.

I thought it was loud when I got it, but felt that maybe that was just
the way they are.

d (going deaf) j



  
Date: 25 Nov 2006 00:28:29
From: Ed T
Subject: Re: Rocky vs MACAP

"Danny Joe" <dpiette@gmail.com > wrote in message
news:1164399358.215355.128710@45g2000cws.googlegroups.com...
>
> I->Ian wrote:
>> On 24 Nov 2006 09:34:30 -0800, "Danny Joe" <dpiette@gmail.com> wrote:
>>
>> >I made a video (call me Woody Allen) so you can hear the difference in
>> >the two grinders.
>> >
>> >you can see it on youtube:
>> >
>> >http://www.youtube.com/watch?v=nC1W1b8BLYE
>> >
>> >It is sort of jerky. Sorry about that.
>> >
>> >d (altman I am not) j
>>
>> Nearly jumped out of the chair on the MACAP! WAY louder than here. I'd
>> guestimate mine is about half as loud as your Rocky, using the click
>> of the power switches and the level of the voice as a guide.
>
> Thanks, Ian.
>
> I thought it was loud when I got it, but felt that maybe that was just
> the way they are.
>
> d (going deaf) j
>

Same here. Much louder than my M4.
Ed




 
Date: 24 Nov 2006 19:47:59
From: I->Ian
Subject: Re: Rocky vs MACAP
On 24 Nov 2006 09:34:30 -0800, "Danny Joe" <dpiette@gmail.com > wrote:

>I made a video (call me Woody Allen) so you can hear the difference in
>the two grinders.
>
>you can see it on youtube:
>
>http://www.youtube.com/watch?v=nC1W1b8BLYE
>
>It is sort of jerky. Sorry about that.
>
>d (altman I am not) j

Nearly jumped out of the chair on the MACAP! WAY louder than here. I'd
guestimate mine is about half as loud as your Rocky, using the click
of the power switches and the level of the voice as a guide.