Green Coffee Buying Club
Coffee Discussion boards => Hardware & Equipment => Topic started by: milowebailey on April 09, 2008, 07:24:50 AM
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As some of you know I just picked up a Rossi RR45 grinder. The grinder works great, but the Dosering lever is broken. I don't know if there are any other parts missing from the doser, but I was wondering if anyone had one of these and would be willing to let me know what parts they think I need. Below are a few photos.
There are two parts I didn't know what they were or even if they went to this grinder. They were in the doser when I got the grinder
Also I'm wondering if I could convert this to a non-doser grinder, is there a kit/modifications I can do to replace the doser with a shoot or something?
thanks
Milowebailey
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What I would do is gut the doser.
If it's broken anyway I'd pull everything out of the way and get some small pastry brushes to use for now.
This way you can search for parts if you choose to rebuild it later but still use it.
I killed my doser but kept the sweep lever part operational just to move the grounds but it sounds like that might be the part that is broken.
1 vote for gut it. ;)
John F
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Does this picture help? I've bought one of these off of eBay from a used restaurant supply house. It grinds nice and even for espresso and has just a small amount of fines doing course grinds. Since I usually only grind enough for a couple of doubles at a time, the doser is more hassle than it's worth. I usually just dose into a small bowl and use a pastry brush to clean it out each time. A doserless mod would be nice, but I haven't seen one.
I'm not sure what the spring is in your second picture, but the pin is for the step adjustment for the grind settings. The bottom of the adjustment collar has holes that the pin goes into to keep it in position. There's a hole it goes into in the top of the case on the upper left side just under the edge of the collar.
Looking at your top picture, it looks like you need at least the doser handle and the brass bin that keeps the cam from turning the wrong way. It goes in where that spring is sticking out at 2:30 in the top picture. It's hard to tell what other parts you may need inside the dosing chamber from your picture.
I'd be happy to help out if you have more questions. Just let me know.
(http://static.zoovy.com/img/espressoparts2/W560-H684-Bffffff/02058538.jpg)
http://www.espressoparts.com/category/03.03.rossi.rossidoser/ (http://www.espressoparts.com/category/03.03.rossi.rossidoser/)
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Does this picture help?
Yes, thanks
I'm not sure what the spring is in your second picture, but the pin is for the step adjustment for the grind settings. The bottom of the adjustment collar has holes that the pin goes into to keep it in position. There's a hole it goes into in the top of the case on the upper left side just under the edge of the collar.
thanks, I don't see the whole, but I'll look again when I get home on Sunday.
Here are a couple of photos... before and after cleaning.
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Here's where it goes.
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aaahh, I was thinking from the photo that it was a screw..
thanks
Milowebailey
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What do you guys think about this one?
http://video.google.com/videoplay?docid=-245114793778538199
It was offered to me for $150...
Monito
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Since you're asking...
I think you should get it.
And put some new burrs in it.
But first talk them down to $100 to cover the new burrs.
And then start your own thread. ;D
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Does it sound like it needs new burrs?
Thanks,
Monito
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It looks like practically the same machine with a few minor difference. The doser looks like the exact same unit (except for the tamper and lid) on the RR45. The grind collar and the top of the burrs look to be the same, as far as I can tell. It sounds like my RR45, too. I fully expect to be using mine into my dotage...
I say go for it. Burrs are ~$40 if it uses the same ones as the RR45.
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Does it sound like it needs new burrs?
Thanks,
Monito
The answer to your question can't be discerned from a video. It's just a given that a used grinder gets new burrs. Unless you know who had it, how they used it, and when they replaced the burrs.
That's a workhorse grinder though, and you'll like it if you have the room for it. Think of how you'll be able to impress people too! ;D
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The lady doesn't want to come down in price. She tells me that she service it every year, etc., etc :P
Monito
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So now that the Espresso machine is back together. I decided to modify the Rossi Grinder to make it doser-less.
I have the modification almost complete, and will post photos once I get it done.
I think it's going to work sweet ;D
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I'd really like to see those pictures when you're done. A doser on a grinder for home use is just about useless. I'm tired of cleaning mine out constantly.
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I'd really like to see those pictures when you're done. A doser on a grinder for home use is just about useless. I'm tired of cleaning mine out constantly.
I went from doser to doserless to doserless and back to doser.
I am not as particular about every microscopic old coffee ground as some, but what killed the doserless for me was the clumping, not to mention the attention it requires. With a doser, you can grind your portion of beans and walk away, come back and do your thing. With the doserless, when you grind, you must be in front holding the PF. Even if you have a container sitting there to catch them, then you have more fly away debris. The doser seems to waste more, but that just isn't an issue any more.
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Here is the mod.
I used about a 4" chunk of 4" ABS pipe and got a 1 1/2" long sweep ABS elbow. Drilled and filed a rectangular hole to match the grinder and drilled 2 mounting holes also to match.
The ABS glue is solid as a rock.
As you can see it's a little messy. That was from about 6 or 7 double shot grinds. I'll probably add some sort of tray to fit under it for the mess, but otherwise it work pretty good. Not much clumping, but a little.
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Larry,
That's a thing of beauty! I've been wanting to de-doser my RR-45 for some time, but never had a good idea as to how. You've inspired me!
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Use the doser as a template once you get the 4" ABS cut down to size. Mark the mounting holes and rectangular hole with a pencil and it will fit like a dream.
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I will ask the dumb question, where did all the coffee on the bottom of the machine come from? Hopefully it was after you did the mod.
(always the engineer in birmingham, al)
ps should be home tonight and then out on Friday. Yeah this is getting old.
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I will ask the dumb question, where did all the coffee on the bottom of the machine come from? Hopefully it was after you did the mod.
(always the engineer in birmingham, al)
ps should be home tonight and then out on Friday. Yeah this is getting old.
Yes after the mod. When grinding, some grounds spill out of the portafilter. I ground about 10 - 15 doubles before I took the photo.
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Yes after the mod. When grinding, some grounds spill out of the portafilter. I ground about 10 - 15 doubles before I took the photo.
Great job milo ... how do you find it working compared to a dozer?
:icon_salut:
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As I mentioned in a previous post I picked this grinder up for free with a Brazilia Espresso machine and the doser lever was broken.
But since I don't pull more that a few shots a day, I don't have to grind as much coffee with this mod as I would with the doser, since you have to have a fair amount ground to use the doser... or use a brush to move it inside.
Peter may be able to give you insight once he gets his modified.
I think I had about $7 in parts and glue and about 20 - 30 minutes in building it... so it's not hard or expensive to build so you could always experiment and if you don't like it, put the doser back on.
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Nucer,
Not to hi-jack the thread, but if you are in B'ham again drop me a PM and we'll have a coffee. I travel a lot (I'm in Suffolk VA right now), but if you are in the neighborhood, give me a shout (that goes for any Gee-Cee-Bee-Cee'er).
Woody
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Hello,
Could you please tell which screws did you use to take the doser off?
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Since this thread is 10 years old and I don't remember what I had for dinner yesterday, I think you're out of luck.
My foggy recollection is that there two screws inside the doser at the top, and a lip of some sort that the bottom rim of the doser sits into.
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I have a RR45, and Peter is right, I think. Two screws inside the doser at the top is all that holds the unit on. Personally, I just use the doser as is. I have a little paint brush that I use to swipe the loose grounds down to the bottom every morning and I throw those out and call it good.