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Thread: Mazzer Mini setup process

  1. #1
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    Mazzer Mini setup process

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Guys,
    Ive just come into possesion of a Mazzer Mini, this being my first proper grinder, Id like to know what the proceedure is for setting it up for grinding duties? Its been in domestic service with little to no use, but i would like to zero it, check for wear, and adjust it. Given the nearly infinate level of grind adjustment, whats the best practice for getting it up and running consistantely...is there a "how to" anywhere?

    Basically esspresso only in my Faema E98 Compact S1

    I want to be able to be mechanically familiar with it and make fine-ish adjustments off-center of a reasonable starting position.

    Cheers Guys

  2. #2
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    Re: Mazzer Mini setup process

    There is no real need to zero a grinder because were all good enough to dial in the grinder regardless of what number is showing. However, to zero a grinder, turn the burr carrier all the way until it wont turn anymore i.e. counter-clockwise. This is the point at which burr is touching burr (metal to metal). Knock it back a bit, this is your zero point.

    For all mazzers, the grind is held in place by a patented tension springs. To get access to the burrs, you need to unwind the burr carrier all the way. (i.e. turn coarser or clockwise)

    You may or may have trouble with the screws that hold the burrs in place. In case, an impact screwdriver is your best friend. About $35 to $40 from Bunnings in the tool shop.

    Other than that, youre laughing....easy to service.

    Good luck

  3. #3
    Senior Member E-Gene's Avatar
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    Re: Mazzer Mini setup process

    I believe that the Mazzers when they come out from the factory have a sticker put on to show you where the "middle" or "zero" point is. It is rarely the "0" on the dial.

    Did you get it second hand? If so, do what Wushoes said and open it up and check the burrs as well as give it a good clean.

  4. #4
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    Re: Mazzer Mini setup process

    I did get it on Saturday, gave it a clean (its come up like brand new!) the burrs are razor sharp, and Ive had a good play with it. I cannot believe the difference in my cup a quality grinder has made.....never again will I buy or get pre ground coffee. ;D

  5. #5
    Mal Dimal's Avatar
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    Re: Mazzer Mini setup process

    Quote Originally Posted by Wushoes - David S link=1217836858/0#1 date=1217845537
    You may or may have trouble with the screws that hold the burrs in place. In case, an impact screwdriver is your best friend. About $35 to $40 from Bunnings in the tool shop.

    Other than that, youre laughing....easy to service.
    Id be a bit worried about using an impact screwdriver for this job where threads in brass are concerned and also the thrust bearing when removing the rotating burr-plate. Have found that a quick and simple method is to use your trusty Hammer Drill set to "Hammer" and the right size and shape driver-bit. Start off slowly and gradually increase hammer speed until the screws start to move. Works like a charm and is less likely to cause problems.... :)

    Cheers,
    Mal.

  6. #6
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    Re: Mazzer Mini setup process

    Thats the exact same theory of operation as a rattle-gun.

  7. #7
    Mal Dimal's Avatar
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    Re: Mazzer Mini setup process

    Quote Originally Posted by NewbieDAN link=1217836858/0#5 date=1218443818
    Thats the exact same theory of operation as a rattle-gun.
    Yep,

    It is sorta.... Much more gentle than using an Impact Screwdriver though and most domestic and some Trade Battery/Power drills tend to use a vibratory system as opposed to an actual hammer action.

    Mal.

  8. #8
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    Re: Mazzer Mini setup process

    ....in-any-case Im glad mine is so lightly used the burrs are still razor sharp. ;)

  9. #9
    Mal Dimal's Avatar
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    Re: Mazzer Mini setup process

    Quote Originally Posted by NewbieDAN link=1217836858/0#7 date=1218444874
    ....in-any-case Im glad mine is so lightly used the burrs are still razor sharp. ;)
    Yep, sounds like youve done pretty well there mate, excellent stuff.... [smiley=thumbsup.gif]

    Mal.

  10. #10
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    Re: Mazzer Mini setup process

    Quote Originally Posted by Mal link=1217836858/0#4 date=1218443396
    Quote Originally Posted by Wushoes - David S link=1217836858/0#1 date=1217845537
    You may or may have trouble with the screws that hold the burrs in place. In case, an impact screwdriver is your best friend. About $35 to $40 from Bunnings in the tool shop.

    Other than that, youre laughing....easy to service.
    Id be a bit worried about using an impact screwdriver for this job where threads in brass are concerned and also the thrust bearing when removing the rotating burr-plate. Have found that a quick and simple method is to use your trusty Hammer Drill set to "Hammer" and the right size and shape driver-bit. Start off slowly and gradually increase hammer speed until the screws start to move. Works like a charm and is less likely to cause problems.... :)

    Cheers,
    Mal.
    I did it when servicing grinders with terribly stuck screws with care.

  11. #11
    Mal Dimal's Avatar
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    Re: Mazzer Mini setup process

    Quote Originally Posted by Wushoes - David S link=1217836858/0#9 date=1218450354
    I did it when servicing grinders with terribly stuck screws with care.
    Fair enough mate, I thought you probably had.... Its just that I wouldnt. Not such a big deal with the upper burr-plate which can be removed easily and set into a dolly of some kind. Different for the rotating burr-plate though if you try to use such an implement with this burr-plate in-situ still mounted on the end of the motor shaft. Significant bumps or bangs on the end of this shaft while still assembled as part of the motor will cause small indentations in the thrust bearing "bearing-races", ultimately leading to early bearing failure.

    I have personally witnessed this on large motors at a project that we were called in to investigate a number of similar catastrophic failures. We subsequently discovered the primary cause as relating to incidental damage to the bearing races at the factory where these motors were being overhauled and reconditioned prior to being shipped and installed... Namely, severe shock loading and subsequent impingement due to adjacent works involving floor impacts. The vibration travelled through the factory floor, through the stands on which the motors were being assembled and ultimately caused the rotors to "bounce" on their bearing faces, leaving microscopically small impingement sites that eventually led to the breakdown of the case-hardening on the surface of the bearing rollers and eventual catastrophic failure of the bearings of more than one motor; each of which was worth more than double my annual salary at the time.

    Even though the loads on the thrust surfaces of the bearing in a grinder are nothing like the example Ive given, it is none the less commensurate in proportion. It is always a bad idea to impose shock loads on bearings that have not been designed to absorb them, so why do it when there is a much less risky method available. Just an engineering perspective from someone who has been there and done that ;)

    Mal.

  12. #12
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    Re: Mazzer Mini setup process

    Quote Originally Posted by Mal link=1217836858/0#10 date=1218461651
    Quote Originally Posted by Wushoes - David S link=1217836858/0#9 date=1218450354
    I did it when servicing grinders with terribly stuck screws with care.
    Fair enough mate, I thought you probably had.... Its just that I wouldnt. Not such a big deal with the upper burr-plate which can be removed easily and set into a dolly of some kind. Different for the rotating burr-plate though if you try to use such an implement with this burr-plate in-situ still mounted on the end of the motor shaft. Significant bumps or bangs on the end of this shaft while still assembled as part of the motor will cause small indentations in the thrust bearing "bearing-races", ultimately leading to early bearing failure.

    I have personally witnessed this on large motors at a project that we were called in to investigate a number of similar catastrophic failures. We subsequently discovered the primary cause as relating to incidental damage to the bearing races at the factory where these motors were being overhauled and reconditioned prior to being shipped and installed... Namely, severe shock loading and subsequent impingement due to adjacent works involving floor impacts. The vibration travelled through the factory floor, through the stands on which the motors were being assembled and ultimately caused the rotors to "bounce" on their bearing faces, leaving microscopically small impingement sites that eventually led to the breakdown of the case-hardening on the surface of the bearing rollers and eventual catastrophic failure of the bearings of more than one motor; each of which was worth more than double my annual salary at the time.

    Even though the loads on the thrust surfaces of the bearing in a grinder are nothing like the example Ive given, it is none the less commensurate in proportion. It is always a bad idea to impose shock loads on bearings that have not been designed to absorb them, so why do it when there is a much less risky method available. Just an engineering perspective from someone who has been there and done that ;)

    Mal.
    hahaha...I know this stuff...learnt this stuff long ago in some mechanical engineering unit.

    Thanks

  13. #13
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    Re: Mazzer Mini setup process

    there is usually a sticker with an arrow. if you line that up with the notch on the front. That should be your ball park espresso.



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