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Machinist Opinions Needed - Caravel Basket Fabrication - Page 2

Postby zin1953 on Sat Sep 26, 2009 10:46 am

KnowGood wrote:Clicking on your link, it worked fine for me. I'm on a mac using Safari 3.2.1.

Odd. I'm using Macs, too -- both desktop and a MacBook; both Intel-based -- but Safari Version 4.0.3 . . . every other website seems to work perfectly.
A morning without coffee is sleep. -- Anon.
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Postby peacecup on Sat Sep 26, 2009 1:10 pm

YES! I NEED BASKETS AND 1-2 BOTTOMLESS PORTAFILTERS! SOON!!!!

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Postby Ben Z. on Sat Sep 26, 2009 1:13 pm

Baskets are one thing, but where do you guys find the machines? I'm checking everywhere I can think...
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Postby Droshi on Sat Sep 26, 2009 3:21 pm

ebay.it

They come up every so often. About 100 eur + 50-80 eur shipping abroad seems to be about the going price of one with portafilter + basket. Condition of everything else is often unknown, but since they hold up pretty well usually all is ok. Still could be a risk.

But do check often, and be willing to wait. My friend just got a good one for buy it now as soon as it came up, and the seller was very friendly and spoke English. Then again some come with no basket or portafilter, so make sure to check that both are included, though maybe soon it will be less of an issue if they don't.
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Postby SantoSerafino on Wed Oct 21, 2009 7:54 pm

So are we talking the super-double that sorrentinacoffee mentioned in the main caravel thread?

I NEED one of those, it would get me using my Caravel again. Okay maybe I was going to start using it again anyway... ;)

sorrentinacoffee's image:
Image

In that thread it was suggested that best results might require that the machinist/designer have an actual example in hand to match the flow characteristics of the holes.

Even then I wonder if we need some objective measure to consider, as in X amount of water passing through in X time at X pressure? The average machinist isn't necessarily going to be equipped to even measure the holes in an original, let alone figure out how to ensure that the new ones match the old ones in performance.

Aside from die-stamping, there is another possible technique which could work for the shaping of these--'spinning', which is pressure-forming a spinning disk on a lathe. It's a specialized technique and still requires the machining of a form, but the setup costs should be significantly less. Unfortunately it's labor-intensive so there are limits on how economies of scale can work out, and there would still be the problem of getting the holes done.
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Postby Droshi on Thu Oct 22, 2009 6:20 pm

Why a larger basket? I feel like even the normal double can't take advantage of all the coffee that fits in it with a single pull.

I recently acquired the single basket from a friend's Caravel. Unfortunately I cleaned out the holes too well and made them slightly larger, now grinds end up in the cup. But compared to the middle basket, dosing/distribution matters more and shots are sweeter and higher volume.

I'm now interested to get the single basket made with smaller original holes as it will eliminate fines in the cup and give me shots with the same properties. But I also have a double basket from Orphan on the way since my original double basket has some rust and bad holes too. Having a real solution for double and single baskets for this machine would be really nice as besides the handle (easy fix) this is one other weak point.
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Postby SantoSerafino on Thu Oct 22, 2009 7:28 pm

sorrentinacoffee did indeed say that the super-basket needed a double-pull.

I am intrigued by your comments about the single basket and volume, I will have to give mine a try! Perhaps I need to work some more on double-pulls with the 'medium' basket too.
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Postby sorrentinacoffee on Thu Oct 22, 2009 10:08 pm

not sure if I said it.... But it is true I think- a single pull would probably be a bit of a waste with the largest basket- I don't think it could extract all the goodness.
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Postby bigredted on Sun Dec 27, 2009 12:49 am

Did anything ever come of this basket information? or was it meant to try and gage actual interest prior to any work being carried out? I can't find them on OE.

espressme wrote:Hi Gang,
Watch the Orphan Espresso pages. I hear that prototypes of doubles are done and they will be ordering soon.
They may do Bottomless PFs if the interest is there.
-Richard
* All those who believe in telekinesis please raise my hand.
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Postby espressme on Sun Dec 27, 2009 12:49 pm

Hi,
Yes the Caravel baskets are available and so are the bottomless portafilters.
Orphan Espresso
Use their contact page to email them and check stock.
disclaimer: I sell products through them.
Happy Holidays!
-Richard
richard penney LMWDP #090,
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www.barringtoncoffee.com: truly great coffee roasted to highlight its inherent quality
www.barringtoncoffee.com: truly great coffee roasted to highlight its inherent quality

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