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Author Topic: My GS Project  (Read 37604 times)

Ronin

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My GS Project
« Reply #25 on: 21/09/2011, 06:36 PM »
Pulled one of the groups apart today, well the upper part anyway.
Need a custom tool wich I'll make tommorow
Still supprised at how easy it's come appart.
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Koffee Kosmo

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« Reply #26 on: 21/09/2011, 07:14 PM »
Its a great start
The work bench looks like its just waiting for a bit of work start

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

borat123

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« Reply #27 on: 21/09/2011, 07:51 PM »
My type of multi tasking

Roasting and restoring at the same time?  ;)  ;)

Ronin

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« Reply #28 on: 22/09/2011, 03:37 PM »
Roasting and restoring at the same time?  ;)  ;)

and drinking  ;D
Happiness is not a destination
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Koffee Kosmo

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« Reply #29 on: 22/09/2011, 04:33 PM »
Roasting and restoring at the same time?  ;)  ;)

and drinking  ;D

Ahh the big 3
Roasting, making & Drinking
It's what we live for

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Ronin

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My GS Project
« Reply #30 on: 25/09/2011, 02:49 PM »
Almost completely stripped now.
Made a tool to remove the dispersion plate, and need another to remove the rest of the group internals.

Did have my first trouble this morning tho.

I broke a 4 way piece off trying to remove it. They are only about $20 tho, so not too much damage. I just need to get the broken piece out now.
Also having trouble getting the end plates off the brew boiler. Think I'll need to invest in a propane burner to loosen it up.
Happiness is not a destination
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and a good coffee of course

borat123

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« Reply #31 on: 25/09/2011, 03:57 PM »
Think I'll need to invest in a propane burner to loosen it up.

Best investment I ever made.....  ;)  Twenty something bucks from Bunnings.  I also got a can of penetrant / release agent which worked really well when I was trying to open the boiler.

Ronin

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« Reply #32 on: 25/09/2011, 05:34 PM »
Where do I get those AM?

Off to 'That hardware shop' tomorrow
They stock almost everything else, including the kitchen sink
Happiness is not a destination
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borat123

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« Reply #33 on: 25/09/2011, 06:01 PM »
I managed to strip the thread off one fitting - thank $%*&! it stripped there instead of what it came out of........

Maybe the hardness of the fittings is less(?)

Ronin

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« Reply #34 on: 26/09/2011, 03:22 PM »
Note to self (and others)
When buying propane burner, get the sparker too.  :-\
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Ronin

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« Reply #35 on: 27/09/2011, 03:13 PM »
After a frustratingly unproductive day, I need a coffee break.
So here I am.

Got the flint for the propane burner this morning.
Remover end plates from brew boiler to find All kinds of flakey scaley rubbish.
Not to hard with the heat.

My nemesis however is the broken 4 way cross fitting.
Easy out, heat and what little brute strenght I have seems not enough.

Idaes are welcome................please :-\
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and a good coffee of course

Koffee Kosmo

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« Reply #36 on: 27/09/2011, 03:45 PM »
Put up a photo of the broken fitting (the bit that is stuck)
And post hole sises so I know what tools will fit to be used

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Bean Flying

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« Reply #37 on: 30/09/2011, 03:34 PM »
Hope these make sense to the thread. Recovered out of the archive.


"Good idea KK My photography is not the best but here they are." - Ronin


"There is only about 3mm sticking out of the boiler, but it's in broken segments. I can't get vice grips to hold. Tried Easy out, it won't budge, even with WD40 and heat. The hole in the boiler has a tapered section at the bottom, so drilling it out would be a tricky option. Looks to have been leaking for a while, but probably not fixed as it wouldn't come out. Also looks to have been cracked (causing the leak) and probably causing it to break on me. Here is a link to the offending part, now in stainless steel, not brass. http://www.espressoparts.com/MZ_21 " - Ronin


"Problem with the easy out is that it is tapered. This can result in it forcing the part you are trying to extract into a tighter fit as you screw it in. an alternative is to drill a hole slightly smaller than a hex key force that in with a press or hammer, then use that as an extractor. Size of hole and key are obviously critical to avoid the same problem. I have a set of 1/2in drive hex keys that have worked
well in the past, as they can be used with an impact driver. Another caution, when dealing with soft metal, you can bend it with excessive use of force (but then you probably knew that).

Also, alternating heat and cold can help break the scale/corrosion, not sure if there is room in your freezer, but worth a try." - UMN


"If freezer room is an issue and you've no access to LN then a couple of large blocks of ice could provide instant shock to the area and brittle the area. I'm sure KK has done lots of this in his time and will one along with a good idea for the handyman whose wife doesn't want the roast tainted with boiler. ;D " - BrettH


"I have done this in the past Get a hack saw blade and grind it down approx 100mm in length to 2/3mm in height Use it to cut the inside of the fitting Cut with care to almost the thread in 2 to 3 places By squeezing it it will break and come apart, sometimes heat also helps" -  (see photo ) KK



"Some good ideas here guys Thanks I guess that's the difference, I work with wood, not much expierence with stuck metal bits. Will report back when I've had a chance to try." - Ronin

Ronin

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« Reply #38 on: 13/10/2011, 04:55 PM »
Ha ha.
Nemesis defeated  ;D

Next job - frame to powder coaters and chrome bits off to the platers
Happiness is not a destination
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Ronin

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« Reply #39 on: 19/10/2011, 05:50 PM »
Note to all coffee machine owners 'CLEAN YOUR MACHINES REGULARLY'
Which one will I be drinking from...........................
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Brett H

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« Reply #40 on: 19/10/2011, 11:04 PM »
Okay, so what will you do with those?  Sandblasting/rechroming or something even more special.... GOLD???
Diadema Junior Extra PID, La Pavoni Professional, Compak K10 Conical, Compak A8 Automatica, Fiorenzato F5, Rancilio Rocky, Behmor 1600, BBQ Roaster (retired), KKTO

Ronin

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« Reply #41 on: 20/10/2011, 04:43 PM »
No not gold.
Started in a bead blaster with glass beads (choices at work are plastic, glass and garnet)
Planning on polishing out all the casting marks and re chroming them.
The groups are only polished on the exposed faces (those that can be seen when the covers are on), I was a little disappointed in this, so I'm going to polish all external faces, cause I can  ;D (and I have the necessary tools at work)
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Brett H

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« Reply #42 on: 20/10/2011, 05:26 PM »
Nice!  Why doesnt my workplace have cool toys like yours Ronin?
Diadema Junior Extra PID, La Pavoni Professional, Compak K10 Conical, Compak A8 Automatica, Fiorenzato F5, Rancilio Rocky, Behmor 1600, BBQ Roaster (retired), KKTO

Ronin

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« Reply #43 on: 20/10/2011, 07:41 PM »
Nice!  Why doesnt my workplace have cool toys like yours Ronin?

Cause you don't work in a foundry  :P
Not always cool Brett, steel foundries get hot, especially when the steel is melted at about 1550 deg C.
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Koffee Kosmo

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« Reply #44 on: 20/10/2011, 10:44 PM »
Cause you don't work in a foundry  :P
Not always cool Brett, steel foundries get hot, especially when the steel is melted at about 1550 deg C.

I am an old BHP lad
I still talk about it, because I loved that job in Newcastle

KK
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Blog - http://koffeekosmo.blogspot.com

jeff

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« Reply #45 on: 21/10/2011, 10:36 AM »
As there are a few handles / knobs and paddles that look a bit tired... Some custom wood work would set it right off.

If you don't have a local resource, Cannonfodder (Dave Stephens) over on Home-Barista does custom wood for espresso machines. I don't know what he charges, but his work looks beautiful to me.
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Ronin

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« Reply #46 on: 21/10/2011, 05:01 PM »

Love to hate machining castings.. Especially Cast Iron  Spent way to long at a Foundry or two on the south side and one did a heap of train wheels... 


Now, back on track...


When will your system be ready for testing R ?

BK's at Runcorn I'm thinking AM. I'm northside.

A little premature there re testing AM. Still in bits, although they are mostly cleaner than they were.
Looking into powder coating the frame and have decided on colour scheme from the first series GS. There is a 1 group that has just been finished that looks fantastic, and will match my grinder too. But you'll have to wait for that  :P

And re chroming of course. I'm a little disappointed in the exposed group castings. Brass isn't to hard to work with tho, so I'll get them to a good standard before chroming all bits.

Have some possible drama with both of the dispersion plates. Extra holes. Currently investigating if they should be fixed or not. I'm leaning towards yes, but that's a tricky job (says the welder, not me)
Happiness is not a destination
It is a way of life
and a good coffee of course

Ronin

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My GS Project
« Reply #47 on: 21/10/2011, 05:03 PM »
If you don't have a local resource, Cannonfodder (Dave Stephens) over on Home-Barista does custom wood for espresso machines. I don't know what he charges, but his work looks beautiful to me.

Thanks Jeff

Might do something myself first to see how it looks. I've got some Rosewood that looks good, but might clash with colours. Time will tell
Happiness is not a destination
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and a good coffee of course

Ronin

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« Reply #48 on: 21/10/2011, 05:22 PM »
Forgot to mention

Elements are tested (by electrician at work) and should work.
1300 watt brew boiler
2000 watt steam boiler
Around 16 amps total, so a 20 amp will cover it nicely I think

Happiness is not a destination
It is a way of life
and a good coffee of course

jeff

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« Reply #49 on: 29/10/2011, 10:21 AM »
The lever at the front of the right side, is that the manual fill?
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