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Thread: RR45 What to do?

  1. #1
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    RR45 What to do?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Managed to pick up an RR45 for next to nothing but doesnt have a hopper or a doser. *I pulled it apart and cleaned it up. *Noticed that the top bearing was making alot of noise so I replaced it. *Very easy job and only $7 for the bearing.

    Now looking for suggestions on what to do with it. *I have a La San Marino grinder (LM90) that has a busted motor and I was thinking of retrofitting the motor from the RR45 into it but it wont work.

    So should I

    1. *Remove doser from LSM and install on RR45?

    2. *Try to retro fit RR45 motor and burrs into LSM housing?

    3. *Create spout for RR45 so that it works without a doser?

    4. *Does anyone have an old RR45 sitting around to donate?

    Any ideas would be great!!!

    Mike

    PS. Am using a K3 at the moment but always looking to play with new machines and putting together a Pav 2 grp that could be used with this new grinder for functions etc.

  2. #2
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    Re: RR45 What to do?

    Or at least can someone who knows give me an idea of how good you think the RR45 actually is! Might just be worth recycling???

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    Re: RR45 What to do?

    Quote Originally Posted by 5D595358555C6F53300 link=1257507789/1#1 date=1257561130
    Or at least can someone who knows give me an idea of how good you think the RR45 actually is! *Might just be worth recycling???
    Hate to say it michel_c, but I reckon its an absolute dog. One of my least fave grinders :(

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    Re: RR45 What to do?

    I didnt have great expectations of the grinder but was quite impressed with the quality of the build as I pulled it apart. Also paid very little for it and just playing as a project more than anything else.

    Was also thinking of creating a hopper (mini-e) style for the outlet. When I have time of course.

  5. #5
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    Re: RR45 What to do?

    There are a few on this site who have modded rr45s, one big problem with them is the static, it makes the doserless thing a bit harder. I have just upgraded and cant believe what I used to put up with.

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    Re: RR45 What to do?

    Quote Originally Posted by 68372F393239353C3C3F3F373B345A0 link=1257507789/2#2 date=1257563592
    Hate to say it michel_c, but I reckon its an absolute dog. One of my least fave grinders :(
    @2MCM
    I was wondering why you felt this way 2MCM? Could you elbarote on why you dont like them. What are you using out of interest?

    @Michel
    I do (used to) notice a lot of static in mine, but its the only "real" grinder i have so do not have much to compare. I consider it a bit noisy but the coffee from it seems good.

    I was using mine doserless for a while, but could not find a cheap SSteel funnel to make a "mazzer" style chute.

    I used a plastic funnel for a while and it was OK but nothing great i think the sides were not steep enough.

    I put the does back on and am just grinding on demand into it and dosing. I am considering an upgrade but an unsure if it is my grinder or my coffee making ability holding me back?

    I made a little metal chute / deflector to throw the grinds down towards the doser floor this really has got rid of most of the static, it just screws in under the top big metal ring of the doser and goes through the "grinds" hole.

    Leeham

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    Re: RR45 What to do?

    Quote Originally Posted by 59555C515158340 link=1257507789/5#5 date=1257574883
    2mcm wrote on Nov 7th, 2009, 2:13pm:

    Hate to say it michel_c, but I reckon its an absolute dog. One of my least fave grinders

    @2MCM
    I was wondering why you felt this way 2MCM? Could you elbarote on why you dont like them. What are you using out of interest?
    for my $0.05, slow, lots of fines, lots of static, nasty doser action, gets very hot very fast, noisy and ugly. anything I missed Chris?

    ;)

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    Re: RR45 What to do?

    Quote Originally Posted by 012C2D263C213C31480 link=1257507789/6#6 date=1257689033
    Quote Originally Posted by 59555C515158340 link=1257507789/5#5 date=1257574883
    2mcm wrote on Nov 7th, 2009, 2:13pm:

    Hate to say it michel_c, but I reckon its an absolute dog. One of my least fave grinders

    @2MCM
    I was wondering why you felt this way 2MCM? Could you elbarote on why you dont like them. What are you using out of interest?
    for my $0.05, slow, lots of fines, lots of static, nasty doser action, gets very hot very fast, noisy and ugly. anything I missed Chris?

    ;)
    you got a lot of hate there CH i thought you were describing a BNZ for a while....... ;D...I had a laugh

    that said, i agree but on a flat burr (same price bracket?) comparison on coffee taste alone & home use are the RR45s letting us down?

    would a mazzer or ??? be better

    I am considering a new grinder but as a home roaster will the upgrade be worth it, unless i go robar, bnz, wbc, conical burr?

    I am talking 2nd hand price bracket because i sure would not buy one new, they are ugly.

    Leeham

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    Re: RR45 What to do?

    @leeham

    only when I said ugly did I describe the BNZ! I dont particularly dislike them, but my experience of them is that you get a very flat taste profile, very much like listening to music on FM radio in a car (highs and lows are compressed), which struggles to get fruits/florals and melds the low-end into a cohesive lump of tastes coffee-ish coffees.

    I reckon a mini would be the go for you, or a rare evilbay find!

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    Re: RR45 What to do?

    sorry, same price bracket is a hard one - if youre talking super jolly price bracket (entry level cafe grinder) then I think these flatties are letting you down. (to clarify).

    The three grinders I dont have much love for are the RR45, the BB004 and the Boema flattie, but I do respect that at the second-hand price point, theyre a great value for lack of money proposition.

  11. #11
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    Re: RR45 What to do?

    Gino Rossi RR45 =

    An extremely well built small volume cafe grinder;

    Virtually impossible to kill and very long lived.

    Known to overheat - as do all grinders - when placed in situations above its capacity, or when grinding plates are not changed at correct interval.

    Change grinding plates at proper intervals and there shouldnt be *problem with the consistency of the grinds.

    For home use, which is a situation well below its capacity as a small cafe grinder, *and it would seem Michels intended use, cant see why it shouldnt be a positively excellent grinder.

  12. #12
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    Re: RR45 What to do?

    Going to see if I can find a doser for it for next to nothing (see wanted section) and turn it into a grinder for use at a local Church.

    Was thinking about static and looking at the RR45 vs K3 vs Mazzer SJ vs LSM SM90 and trying to think about the differences between them. The main thing that I could think of was the space between the grinding plates and the outlet on the RR45 is very short. There isnt a tunnel to slow the coffee down and it is just thrown out very quickly. If you could add a short tube and slow the coffee down would this reduce the static?

    thanks all for your feedback already.

  13. #13
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    Re: RR45 What to do?

    essentially the lack of throw is caused by the distance between the edge of the burrset and the edge of the exit path. eg. a bnz will initially spray coffee out very fast, but the coffee that bounces off the exit path will slow down and form on the ledge before the drop, then slowing down the rest of the coffee.

    ...think of it as the opposite effect to erosion!

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    Re: RR45 What to do?

    Quote Originally Posted by 0B26272C362B363B420 link=1257507789/12#12 date=1258201591

    ...think of it as the opposite effect to erosion!

    unrosion?

  15. #15
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    Re: RR45 What to do?

    Quote Originally Posted by 4C445C564B2F0 link=1257507789/13#13 date=1258202114
    Quote Originally Posted by 0B26272C362B363B420 link=1257507789/12#12 date=1258201591

    ...think of it as the opposite effect to erosion! *

    unrosion?
    The opposite of erosion is siltation

    KK

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    Re: RR45 What to do?

    Quote Originally Posted by 6D4940404343796D49554B49260 link=1257507789/14#14 date=1258202962
    Quote Originally Posted by 4C445C564B2F0 link=1257507789/13#13 date=1258202114


    unrosion?
    The opposite of erosion is siltation

    KK

    I know....

    not much of a joke in siltation though is there?


  17. #17
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    Re: RR45 What to do?

    looking at a second hand doser from espresso service shop for $95. Any comments???

  18. #18
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    Re: RR45 What to do?

    I wouldnt pay that much if I could help it.

    I got a whole Gino Rossi MC for a bargain at just over $300.

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    Re: RR45 What to do?

    I reckon if you can buy that doser and maybe buy new burrs and have a grinder for less than $200 you will get your money back.
    Not a bad risk / reward ratio?

    here is mine in action and a pic of the chute / deflector i made
    I reckon it has stopped +98% of the static problem i had, i don,t need to brush inside very often unless cleaning every other day
    the piece of metal is kind of T shaped with little "wings" on the doser side to throw the grinds down, the top of the T is bent up and fits under the big ring of the doser and uses the two screws to hold it in place

    i chose a empty coconut milk can as it was shiny...... *;)

    it takes about 10 sec to grind a double shot, and 17ish to grind 2 doubles
    it needs a bit of a clean......

    pregrind (i gave it a very slack quick brush out)

    grinding

    completed double, i can bend it down a bit, or angle the sides to throw in other directions slightly

    80% dosed double

    few stray grinds left behind about the same from 1st pic


    but no static to worry about
    prior to the chute grinds would have been stuck to the doser everywhere, every shot needed brushing

    Leeham


  20. #20
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    Re: RR45 What to do?

    Quote Originally Posted by 7945584349485F4A42492D0 link=1257507789/17#17 date=1258372631
    I got a whole Gino Rossi MC for a bargain at just over $300. *
    Bargain indeed!
    New they are $2200.
    A conical grinder this cheap is a rare find. Well done.

  21. #21
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    Re: RR45 What to do?

    You never know what youll find at sponsor oMaras.

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    Re: RR45 What to do?

    Thanks all for suggestions .. will make a few more calls to see if I can get the doser slightly cheaper ... worth a few phone calls



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