From mairinger at gmail.com  Tue Jul  8 22:59:07 2014
From: mairinger at gmail.com (Christian Mairinger)
Date: Tue, 8 Jul 2014 22:59:07 +0200
Subject: [CNC] POM Drehteil
Message-ID: <CALdrPsnew3+c0dgsZ3mo_MPeFcBM9U4vJiDMXM3GncYTutEi1Q@mail.gmail.com>

Hi Leute,

ich m?chte ein kleines Drehteil machen L?nge und Durchmesser so um die
50mm. Ein Spulenk?rper f?r einen Trafo.

Hat irgendwer so a kleine Drehbank wo ich das machen k?nnte?

lg, Christian
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From Hobbes2009 at hotmail.com  Tue Jul  8 23:16:39 2014
From: Hobbes2009 at hotmail.com (Hobbes)
Date: Tue, 8 Jul 2014 23:16:39 +0200
Subject: [CNC] POM Drehteil
In-Reply-To: <CALdrPsnew3+c0dgsZ3mo_MPeFcBM9U4vJiDMXM3GncYTutEi1Q@mail.gmail.com>
Message-ID: <BLU436-SMTP161F5274593779A3DD54A4D50C0@phx.gbl>

Hi,

Wie sieht die Kontur des Teiles aus?

LG,
Hobbes

-----Original Message-----
From: CNC [mailto:cnc-bounces at lists.metalab.at]On Behalf Of Christian Mairinger
Sent: Tuesday, July 08, 2014 10:59 PM
To: cnc at lists.metalab.at
Subject: [CNC] POM Drehteil


Hi Leute,


ich m?chte ein kleines Drehteil machen L?nge und Durchmesser so um die 50mm. Ein Spulenk?rper f?r einen Trafo.


Hat irgendwer so a kleine Drehbank wo ich das machen k?nnte?


lg, Christian




From armin.faltl at aon.at  Wed Jul  9 13:51:16 2014
From: armin.faltl at aon.at (Armin Faltl)
Date: Wed, 09 Jul 2014 11:51:16 +0000
Subject: [CNC] Spaghetti
Message-ID: <53BD2CB4.2040907@aon.at>

Hi,

heute ab ca. 20:30 koch ich Spaghetti (und Sugo) solang der Vorrat reicht.

Sollte das eine Terminkollision ergeben, bitte um Hinweis, dann z.B. morgen.

Mit freundlichen Gr??en,

Armin




From mairinger at gmail.com  Wed Jul  9 16:08:06 2014
From: mairinger at gmail.com (Christian Mairinger)
Date: Wed, 9 Jul 2014 16:08:06 +0200
Subject: [CNC] POM Drehteil
In-Reply-To: <BLU436-SMTP161F5274593779A3DD54A4D50C0@phx.gbl>
References: <CALdrPsnew3+c0dgsZ3mo_MPeFcBM9U4vJiDMXM3GncYTutEi1Q@mail.gmail.com>
 <BLU436-SMTP161F5274593779A3DD54A4D50C0@phx.gbl>
Message-ID: <CALdrPskUJkmsM1ib8x2DEX1iMOGMYMUtXkk=V9NK4ce3y07k6A@mail.gmail.com>

Hi,

Es soll vom Prinzip her so[1] aussehen.
L?nge 38mm, Durchmesser 40mm.
Die Stege sind da mit 1 und 2mm Breite eingezeichnet.

Falls das zu d?nn ist, dann halt etwas anders.
Wenn ich einen gr??eren Kern bekomme, dann das ganze etwas gr??er.

[1] http://imgur.com/pw1yB5s

lg, Christian





Am 8. Juli 2014 23:16 schrieb Hobbes <Hobbes2009 at hotmail.com>:

> Hi,
>
> Wie sieht die Kontur des Teiles aus?
>
> LG,
> Hobbes
>
> -----Original Message-----
> From: CNC [mailto:cnc-bounces at lists.metalab.at]On Behalf Of Christian
> Mairinger
> Sent: Tuesday, July 08, 2014 10:59 PM
> To: cnc at lists.metalab.at
> Subject: [CNC] POM Drehteil
>
>
> Hi Leute,
>
>
> ich m?chte ein kleines Drehteil machen L?nge und Durchmesser so um die
> 50mm. Ein Spulenk?rper f?r einen Trafo.
>
>
> Hat irgendwer so a kleine Drehbank wo ich das machen k?nnte?
>
>
> lg, Christian
>
>
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc
>
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From Hobbes2009 at hotmail.com  Mon Jul 14 02:00:18 2014
From: Hobbes2009 at hotmail.com (Hobbes)
Date: Mon, 14 Jul 2014 02:00:18 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
Message-ID: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>

Hallo Leute!

Habe heute Abend festgestellt, da? unser Werkst?ttenstaubsauger (Dyson) als
Na?sauger mi?braucht wurde.
Der Staubbeh?lter war fast bis zur H?flte mit undefinierbare Fl?ssigkeit und
mit mehr als einer Handvoll Glasscherben (gro?teils gr??er als Haseln?sse)
angef?llt.

Das entsprechende Schwammerln wird sich mit ziemlicher Sicherheit nicht
melden. H?tte den dieser Intelligenzbolzen nicht wenigsten nach vollbrachter
Schandtat den Beh?lter ausleeren k?nnen????

Ebenso auch meine Frage an jene, denen es aufgefallen ist. Kann ja nicht so
schwer sein, diesen zumindestens auszuleeren, oder??? Statt dessen gibt es
eine Disk auf der internen, wie ich zuf?llig erfahren habe.

Braucht sich mittlerweile keiner mehr darum bem?hen. Die Oberputze Hobbes
hat es wieder einmal wie ?blich erledigt. Ich habe Beh?lter, Abscheider,
Schlauch und das Grundger?t so gut es ging ausgesp?hlt. Der HEPA-Filter mu?
jemand neu kaufen (ich selber habe unter Tags keine Zeit). Trocknen wird
nicht mehr viel bringen, da dieser mit Sicherheit von innen heraus Schimmeln
wird, daher komplett ersetzen.

Aufgefallen ist es mir, als ich in der CNC-Fr?se Sp?ne  absaugen wollte und
sich pl?tzlich ein See um den Motor zu bilden begann. WIrklich 1A!!

Das Ger?t steht momentan im Hauptraum auf dem Kasten vor dem Whitboard zum
Trocknen. Bitte derzeit nicht verwenden. Sobald der Schlauch au?en trocken
ist, mu? ein Ri? zumindestens mit Gaffa kurzfristig abgedichtet werden (habe
ich mit schwarzem Edding markiert).

Mit stinksauren Gr??en,
Hobbes





From joe.nassimian at gmail.com  Mon Jul 14 15:28:48 2014
From: joe.nassimian at gmail.com (Joe Nassimian)
Date: Mon, 14 Jul 2014 15:28:48 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
Message-ID: <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>

I'm sorry to hear about your sour adventure with the vacuum cleaner, but
when I read your message, I had to think about how stupid it is to have a
gotten a dyson vacuum for the metalab instead of a wet and dry vacuum
cleaner (shopvac and the likes). This reminds me of all the people that
I've seen try to drive a philips screw with a flat tipped screw driver
**sigh**. I haven't looked at whether there is a wet-dry vacuum at the
metalab, and it doesn't matter if there is, a dyson just isn't smart to
have in a place like the metalab.

If for whatever X or Y reasons, it's not possible to have a vacuum that is
more suitable for a hackerspace, how about slapping together a few junk
parts to build a wet spill attachment
<https://www.youtube.com/watch?v=GrgSlbnjy-U> for the vacuum we already
have?

I understand your frustration, but I'm afraid unless we find a magical
solution to eradicate the ability for humans to be stupid (or high)
sometimes (which includes me too of course), we can only make the
environment we share a bit more dumb proof to minimize losses and
frustration...

However I do agree that the vacuum has mainly suffered from some real lack
of common sense, and we could also think a bit more about how we use the
equipment with respect (towards the equipment and those who will use them
after us).

Keep up the good work Oberputze Hobbes!

Joe



2014-07-14 2:00 GMT+02:00 Hobbes <Hobbes2009 at hotmail.com>:

> Hallo Leute!
>
> Habe heute Abend festgestellt, da? unser Werkst?ttenstaubsauger (Dyson) als
> Na?sauger mi?braucht wurde.
> Der Staubbeh?lter war fast bis zur H?flte mit undefinierbare Fl?ssigkeit
> und
> mit mehr als einer Handvoll Glasscherben (gro?teils gr??er als Haseln?sse)
> angef?llt.
>
> Das entsprechende Schwammerln wird sich mit ziemlicher Sicherheit nicht
> melden. H?tte den dieser Intelligenzbolzen nicht wenigsten nach
> vollbrachter
> Schandtat den Beh?lter ausleeren k?nnen????
>
> Ebenso auch meine Frage an jene, denen es aufgefallen ist. Kann ja nicht so
> schwer sein, diesen zumindestens auszuleeren, oder??? Statt dessen gibt es
> eine Disk auf der internen, wie ich zuf?llig erfahren habe.
>
> Braucht sich mittlerweile keiner mehr darum bem?hen. Die Oberputze Hobbes
> hat es wieder einmal wie ?blich erledigt. Ich habe Beh?lter, Abscheider,
> Schlauch und das Grundger?t so gut es ging ausgesp?hlt. Der HEPA-Filter mu?
> jemand neu kaufen (ich selber habe unter Tags keine Zeit). Trocknen wird
> nicht mehr viel bringen, da dieser mit Sicherheit von innen heraus
> Schimmeln
> wird, daher komplett ersetzen.
>
> Aufgefallen ist es mir, als ich in der CNC-Fr?se Sp?ne  absaugen wollte und
> sich pl?tzlich ein See um den Motor zu bilden begann. WIrklich 1A!!
>
> Das Ger?t steht momentan im Hauptraum auf dem Kasten vor dem Whitboard zum
> Trocknen. Bitte derzeit nicht verwenden. Sobald der Schlauch au?en trocken
> ist, mu? ein Ri? zumindestens mit Gaffa kurzfristig abgedichtet werden
> (habe
> ich mit schwarzem Edding markiert).
>
> Mit stinksauren Gr??en,
> Hobbes
>
>
>
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc
>
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From me at free-minds.net  Mon Jul 14 15:38:48 2014
From: me at free-minds.net (Sebastian Bachmann)
Date: Mon, 14 Jul 2014 15:38:48 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
Message-ID: <20140714133848.GB25504@cebalrai>

Hi,

We had shopvacs, but they are broken now. I don't know if the k?rcher works but
if it does it's a double fail that people do not use this one and instead break
the household thing :(



On Mon, Jul 14, 2014 at 03:28:48PM +0200, Joe Nassimian wrote:
> I'm sorry to hear about your sour adventure with the vacuum cleaner, but
> when I read your message, I had to think about how stupid it is to have a
> gotten a dyson vacuum for the metalab instead of a wet and dry vacuum
> cleaner (shopvac and the likes). This reminds me of all the people that
> I've seen try to drive a philips screw with a flat tipped screw driver
> **sigh**. I haven't looked at whether there is a wet-dry vacuum at the
> metalab, and it doesn't matter if there is, a dyson just isn't smart to
> have in a place like the metalab.
> 
> If for whatever X or Y reasons, it's not possible to have a vacuum that is
> more suitable for a hackerspace, how about slapping together a few junk
> parts to build a wet spill attachment
> <https://www.youtube.com/watch?v=GrgSlbnjy-U> for the vacuum we already
> have?
> 
> I understand your frustration, but I'm afraid unless we find a magical
> solution to eradicate the ability for humans to be stupid (or high)
> sometimes (which includes me too of course), we can only make the
> environment we share a bit more dumb proof to minimize losses and
> frustration...
> 
> However I do agree that the vacuum has mainly suffered from some real lack
> of common sense, and we could also think a bit more about how we use the
> equipment with respect (towards the equipment and those who will use them
> after us).
> 
> Keep up the good work Oberputze Hobbes!
> 
> Joe
> 
> 
> 
> 2014-07-14 2:00 GMT+02:00 Hobbes <Hobbes2009 at hotmail.com>:
> 
> > Hallo Leute!
> >
> > Habe heute Abend festgestellt, da? unser Werkst?ttenstaubsauger (Dyson) als
> > Na?sauger mi?braucht wurde.
> > Der Staubbeh?lter war fast bis zur H?flte mit undefinierbare Fl?ssigkeit
> > und
> > mit mehr als einer Handvoll Glasscherben (gro?teils gr??er als Haseln?sse)
> > angef?llt.
> >
> > Das entsprechende Schwammerln wird sich mit ziemlicher Sicherheit nicht
> > melden. H?tte den dieser Intelligenzbolzen nicht wenigsten nach
> > vollbrachter
> > Schandtat den Beh?lter ausleeren k?nnen????
> >
> > Ebenso auch meine Frage an jene, denen es aufgefallen ist. Kann ja nicht so
> > schwer sein, diesen zumindestens auszuleeren, oder??? Statt dessen gibt es
> > eine Disk auf der internen, wie ich zuf?llig erfahren habe.
> >
> > Braucht sich mittlerweile keiner mehr darum bem?hen. Die Oberputze Hobbes
> > hat es wieder einmal wie ?blich erledigt. Ich habe Beh?lter, Abscheider,
> > Schlauch und das Grundger?t so gut es ging ausgesp?hlt. Der HEPA-Filter mu?
> > jemand neu kaufen (ich selber habe unter Tags keine Zeit). Trocknen wird
> > nicht mehr viel bringen, da dieser mit Sicherheit von innen heraus
> > Schimmeln
> > wird, daher komplett ersetzen.
> >
> > Aufgefallen ist es mir, als ich in der CNC-Fr?se Sp?ne  absaugen wollte und
> > sich pl?tzlich ein See um den Motor zu bilden begann. WIrklich 1A!!
> >
> > Das Ger?t steht momentan im Hauptraum auf dem Kasten vor dem Whitboard zum
> > Trocknen. Bitte derzeit nicht verwenden. Sobald der Schlauch au?en trocken
> > ist, mu? ein Ri? zumindestens mit Gaffa kurzfristig abgedichtet werden
> > (habe
> > ich mit schwarzem Edding markiert).
> >
> > Mit stinksauren Gr??en,
> > Hobbes
> >
> >
> >
> > _______________________________________________
> > CNC mailing list
> > CNC at lists.metalab.at
> > https://lists.metalab.at/mailman/listinfo/cnc
> >

> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc

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From armin.faltl at aon.at  Mon Jul 14 15:50:27 2014
From: armin.faltl at aon.at (Armin Faltl)
Date: Mon, 14 Jul 2014 13:50:27 +0000
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
Message-ID: <53C3E023.5060609@aon.at>

On 2014-07-14 13:28, Joe Nassimian wrote:
>
> If for whatever X or Y reasons, it's not possible to have a vacuum 
> that is more suitable for a hackerspace, how about slapping together a 
> few junk parts to build a wet spill attachment 
> <https://www.youtube.com/watch?v=GrgSlbnjy-U> for the vacuum we 
> already have?
>
when I heard about the issue in more detail now, I thought: why don't we 
build a much better
vacuum cleaner ourselves? Actually I would want a cleaner with 
wet-capability myself.
There is a good design, that employs liquid cleaning / gas washing of 
the air called "Orcy",
that was presented to me.

I envision a design, that combines the idea of the Dyson, a cyclone, for 
the coarse mud
with the idea of the Orcy, a gas washer, for excellent fine filtering, 
if it's done right.
For prototyping of the air-nozzels 3D-printing will work nicely and a 
sketch is in my head...

Other requirements:
*) very quiet
*) robust & repairable
*) relatively cheap

By designing a good centrifugal fan and strapping standard vacuum 
cleaner tubes/hoses
and floor-nozzles to a newly engineered body, this should be achievable.

Regards, Armin



From me at free-minds.net  Mon Jul 14 15:53:35 2014
From: me at free-minds.net (Sebastian Bachmann)
Date: Mon, 14 Jul 2014 15:53:35 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <53C3E023.5060609@aon.at>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
Message-ID: <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>

+1 

On 14. Juli 2014 15:50:27 MESZ, Armin Faltl <armin.faltl at aon.at> wrote:
>On 2014-07-14 13:28, Joe Nassimian wrote:
>>
>> If for whatever X or Y reasons, it's not possible to have a vacuum 
>> that is more suitable for a hackerspace, how about slapping together
>a 
>> few junk parts to build a wet spill attachment 
>> <https://www.youtube.com/watch?v=GrgSlbnjy-U> for the vacuum we 
>> already have?
>>
>when I heard about the issue in more detail now, I thought: why don't
>we 
>build a much better
>vacuum cleaner ourselves? Actually I would want a cleaner with 
>wet-capability myself.
>There is a good design, that employs liquid cleaning / gas washing of 
>the air called "Orcy",
>that was presented to me.
>
>I envision a design, that combines the idea of the Dyson, a cyclone,
>for 
>the coarse mud
>with the idea of the Orcy, a gas washer, for excellent fine filtering, 
>if it's done right.
>For prototyping of the air-nozzels 3D-printing will work nicely and a 
>sketch is in my head...
>
>Other requirements:
>*) very quiet
>*) robust & repairable
>*) relatively cheap
>
>By designing a good centrifugal fan and strapping standard vacuum 
>cleaner tubes/hoses
>and floor-nozzles to a newly engineered body, this should be
>achievable.
>
>Regards, Armin
>
>_______________________________________________
>CNC mailing list
>CNC at lists.metalab.at
>https://lists.metalab.at/mailman/listinfo/cnc




From joe.nassimian at gmail.com  Mon Jul 14 23:11:57 2014
From: joe.nassimian at gmail.com (Joe Nassimian)
Date: Mon, 14 Jul 2014 23:11:57 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
Message-ID: <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>

I'm all for, but you make it sound like it's easy as pie. Proper cyclone
modelling requires a few factors to be taken into account doesn't it? Like
the suction pressure, size of the air inlet and outlet, and a few other
parameters.

It's enough mind abusing that people sometimes managed to write over 100
pages
<http://monarch.qucosa.de/fileadmin/data/qucosa/documents/5333/data/diss.pdf>
about this topic. And here is another dude
<http://billpentz.com/woodworking/cyclone/cyclone_plan.cfm> that details
the build process of a sawdust dust collector that uses cyclonic separation
(the very object of inspiration for the dyson products).

However I have never heard of orcy, neither seems google. Is it similar to
the technology of those industrial cyclonic separators used to clean gas
using a fluid that's injected into the cyclone?

Anyways, I have two 1000W vacuum turbines that were pulled out of an
industrial vacuum (a numatic I believe). I got them for a dust collection
project I have in mind, don't know if a portable dust collector/vacuum can
be designed to make use of them. If it does, it would mean more shelf space
for me, a fun project to collaborate on, and a proper cleaning equipment
for the lab ... However to reduce the noise, maybe as suggested earlier by
Armin, a centrifugal fan would make meeting the requirements easier.

Joe


On Mon, Jul 14, 2014 at 3:53 PM, Sebastian Bachmann <me at free-minds.net>
wrote:

> +1
>
> On 14. Juli 2014 15:50:27 MESZ, Armin Faltl <armin.faltl at aon.at> wrote:
> >On 2014-07-14 13:28, Joe Nassimian wrote:
> >>
> >> If for whatever X or Y reasons, it's not possible to have a vacuum
> >> that is more suitable for a hackerspace, how about slapping together
> >a
> >> few junk parts to build a wet spill attachment
> >> <https://www.youtube.com/watch?v=GrgSlbnjy-U> for the vacuum we
> >> already have?
> >>
> >when I heard about the issue in more detail now, I thought: why don't
> >we
> >build a much better
> >vacuum cleaner ourselves? Actually I would want a cleaner with
> >wet-capability myself.
> >There is a good design, that employs liquid cleaning / gas washing of
> >the air called "Orcy",
> >that was presented to me.
> >
> >I envision a design, that combines the idea of the Dyson, a cyclone,
> >for
> >the coarse mud
> >with the idea of the Orcy, a gas washer, for excellent fine filtering,
> >if it's done right.
> >For prototyping of the air-nozzels 3D-printing will work nicely and a
> >sketch is in my head...
> >
> >Other requirements:
> >*) very quiet
> >*) robust & repairable
> >*) relatively cheap
> >
> >By designing a good centrifugal fan and strapping standard vacuum
> >cleaner tubes/hoses
> >and floor-nozzles to a newly engineered body, this should be
> >achievable.
> >
> >Regards, Armin
> >
> >_______________________________________________
> >CNC mailing list
> >CNC at lists.metalab.at
> >https://lists.metalab.at/mailman/listinfo/cnc
>
>
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc
>
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From armin.faltl at aon.at  Tue Jul 15 02:50:47 2014
From: armin.faltl at aon.at (Armin Faltl)
Date: Tue, 15 Jul 2014 00:50:47 +0000
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
Message-ID: <53C47AE7.9040404@aon.at>


On 2014-07-14 21:11, Joe Nassimian wrote:
> I'm all for, but you make it sound like it's easy as pie. Proper 
> cyclone modelling requires a few factors to be taken into account 
> doesn't it? Like the suction pressure, size of the air inlet and 
> outlet, and a few other parameters.
I've seen and semi-read dissertations about the subject and yes, there's 
a lot to it.
But I've searched long enough, to find formulas, that allow dimensioning 
with a pocket
calculator - I've done it before, actually for a vacuum cleaner to empty 
cans of wood ash.
This works very well and can be scaled down a bit, if required.
>
> However I have never heard of orcy, neither seems google. Is it 
> similar to the technology of those industrial cyclonic separators used 
> to clean gas using a fluid that's injected into the cyclone?
maybe it's spelled Orky / no, it's the other way round: a jet of bubbles 
(that simply form) is injected into
a bath of water (potentially with some tensides) by submerging a nozzle. 
The jet then forms a system of
vortices in the bath, that make the bubble-trails longer and finer, so 
the contact area is maximized
>
> Anyways, I have two 1000W vacuum turbines that were pulled out of an 
> industrial vacuum (a numatic I believe). I got them for a dust 
> collection project I have in mind, don't know if a portable dust 
> collector/vacuum can be designed to make use of them.
Sounds Good
> If it does, it would mean more shelf space for me, a fun project to 
> collaborate on, and a proper cleaning equipment for the lab ... 
> However to reduce the noise, maybe as suggested earlier by Armin, a 
> centrifugal fan would make meeting the requirements easier.
For a quick start of the project, one of the turbines should be fine.
Once we know, the gas washer and the cyclone work, we can still
optimize, by making it comfortable.

thanks!



From vic at ccc.de  Tue Jul 15 13:45:47 2014
From: vic at ccc.de (Peter Franck)
Date: Tue, 15 Jul 2014 14:45:47 +0300
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <53C47AE7.9040404@aon.at>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
 <53C47AE7.9040404@aon.at>
Message-ID: <53C5146B.90305@ccc.de>

Why dont we design a new Metalab where we don't need vacuum cleaners at
all due to nano-engineered surfaces?

Come on. Somebody fucked it up completely unnecessarily and that sucks
because it doesnt just apply to vacuums but as well to tools and other
things. That is why people move back home their stuff to find it in a
sane state when needed.




From joe.nassimian at gmail.com  Thu Jul 17 12:17:53 2014
From: joe.nassimian at gmail.com (Joe Nassimian)
Date: Thu, 17 Jul 2014 12:17:53 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <53C5146B.90305@ccc.de>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
 <53C47AE7.9040404@aon.at> <53C5146B.90305@ccc.de>
Message-ID: <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>

I do agree with you Peter, I wasn't justifying anything, nor do I pretend
that technology can solve a human problem.

This has to do more with common sense and education. So what do you do now
to solve it? Perform a psychological and mental screening of people before
they enter the metalab? Or take on the role of a parent (or yoda) and
lecture every person that does a mistake?

Until we do, we can take steps to minimize the scope of mistakes possible.
Having a dyson, which is intended for domestic cleaning, in a place like
the metalab does not make sense to me. The dyson is not made for places
like the metalab.

That of course does not justify the misuse of the dyson. And it doesn't
justify not being responsible after you do a mistake. The least humanly
expected would have been to clean up the mess you create and learn a lesson
from it. I'm sorry if I sounded like I was justifying things, which I'm
not. And although I did think that Hobbes calling himself the Oberputze was
funny, I did feel sorry for him for being in that very annoying situation.

Now that being said, we do need a better cleaning equipment at the metalab,
and this thread kind of turned into a motivator to build one.

Armin, just let me know when you'll be working on it at the lab, and I'll
show up with one of the turbines, apart from that, I'm not sure how else I
can help.





On Tue, Jul 15, 2014 at 1:45 PM, Peter Franck <vic at ccc.de> wrote:

> Why dont we design a new Metalab where we don't need vacuum cleaners at
> all due to nano-engineered surfaces?
>
> Come on. Somebody fucked it up completely unnecessarily and that sucks
> because it doesnt just apply to vacuums but as well to tools and other
> things. That is why people move back home their stuff to find it in a
> sane state when needed.
>
>
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc
>
-------------- next part --------------
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From me at free-minds.net  Thu Jul 17 12:34:21 2014
From: me at free-minds.net (Sebastian Bachmann)
Date: Thu, 17 Jul 2014 12:34:21 +0200
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
 <53C47AE7.9040404@aon.at> <53C5146B.90305@ccc.de>
 <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>
Message-ID: <d86e27746331e4d8cb2d68547eee0d55@free-minds.net>

we dont need a dyson, we need a milbi! 
http://www.milbi.de/graphics/hausenblas.jpg *scnr*

no but seriously: We had a lot of vacs (at least 4) but for what i know 
only the dyson is left, maybe the k?rcher shopvac works as well...
there was a vac especially for the CNC, which is broken, then there was 
a black shopvac + fluidstuff which i think had problems to keep the dust 
inside (maybe some gaffer and new filter needed).
the dyson was primarly for cleaning the main room and so on (as i 
remember) and not for the HM.

we probably should also investigate where all the stuff is now and if we 
could reactivate some other vacs...

On 2014-07-17 12:17, Joe Nassimian wrote:
> I do agree with you Peter, I wasn't justifying anything, nor do I
> pretend that technology can solve a human problem.
> 
> This has to do more with common sense and education. So what do you do
> now to solve it? Perform a psychological and mental screening of
> people before they enter the metalab? Or take on the role of a parent
> (or yoda) and lecture every person that does a mistake?
> 
> Until we do, we can take steps to minimize the scope of mistakes
> possible. Having a dyson, which is intended for domestic cleaning, in
> a place like the metalab does not make sense to me. The dyson is not
> made for places like the metalab.
> 
> That of course does not justify the misuse of the dyson. And it
> doesn't justify not being responsible after you do a mistake. The
> least humanly expected would have been to clean up the mess you create
> and learn a lesson from it. I'm sorry if I sounded like I was
> justifying things, which I'm not. And although I did think that Hobbes
> calling himself the Oberputze was funny, I did feel sorry for him for
> being in that very annoying situation.
> 
> Now that being said, we do need a better cleaning equipment at the
> metalab, and this thread kind of turned into a motivator to build one.
> 
> Armin, just let me know when you'll be working on it at the lab, and
> I'll show up with one of the turbines, apart from that, I'm not sure
> how else I can help.
> 
> On Tue, Jul 15, 2014 at 1:45 PM, Peter Franck <vic at ccc.de> wrote:
> 
>> Why dont we design a new Metalab where we don't need vacuum cleaners
>> at
>> all due to nano-engineered surfaces?
>> 
>> Come on. Somebody fucked it up completely unnecessarily and that
>> sucks
>> because it doesnt just apply to vacuums but as well to tools and
>> other
>> things. That is why people move back home their stuff to find it in
>> a
>> sane state when needed.
>> 
>> _______________________________________________
>> CNC mailing list
>> CNC at lists.metalab.at
>> https://lists.metalab.at/mailman/listinfo/cnc [1]
> 
> 
> 
> Links:
> ------
> [1] https://lists.metalab.at/mailman/listinfo/cnc
> 
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc



From armin.faltl at aon.at  Thu Jul 17 13:11:14 2014
From: armin.faltl at aon.at (Armin Faltl)
Date: Thu, 17 Jul 2014 11:11:14 +0000
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
 <53C47AE7.9040404@aon.at> <53C5146B.90305@ccc.de>
 <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>
Message-ID: <53C7AF52.1020803@aon.at>


On 2014-07-17 10:17, Joe Nassimian wrote:
> Now that being said, we do need a better cleaning equipment at the 
> metalab, and this thread kind of turned into a motivator to build one.
I too, do not endorse the abuse of equipment.
A vacuum cleaner with the outlined features is however desirable in it 
self (but see below).
>
> Armin, just let me know when you'll be working on it at the lab, and 
> I'll show up with one of the turbines, apart from that, I'm not sure 
> how else I can help.
At the moment, I'm pretty busy, so I can just supervise a construction
and contribute literature like the paper about cyclones. Throwing
together a (simple) model on my CAD system may be possible,
but I don't like to promise it (soon).

So my approach is, to start with the frame and the gas washer.
If we don't get the washer right, the entire project is doomed.
The cyclone is there, just to prevent coarse material that might block
them, to enter the nozzles of the washer. (A sieve would serve that
purpose too, so it does a bit more ;-)

http://www.ciao.de/Doring_Orky__Test_1074330
http://members.aon.at/orky/orky/orky.pdf

Well, after reading the 2nd test report, my enthusiasm for a water filter/
gas washer is more or less gone. Before we put any effort into that
project, several points have to be clarified...

Regards, Armin



From armin.faltl at aon.at  Thu Jul 17 13:27:18 2014
From: armin.faltl at aon.at (Armin Faltl)
Date: Thu, 17 Jul 2014 11:27:18 +0000
Subject: [CNC] Werkstattstaubsauger Dyson
In-Reply-To: <53C7AF52.1020803@aon.at>
References: <BLU436-SMTP252D748A81D18A13CE255ED50A0@phx.gbl>
 <CAP04ZYQWyXM6wo0hMMCqQ0YCFOWRRTBVQnikTDcXL5f=aEXvsQ@mail.gmail.com>
 <53C3E023.5060609@aon.at>
 <f3547c2c-8563-4687-a592-392718a6ad86@email.android.com>
 <CAP04ZYRv_-H=zCscd0oaHnwWM=ZByfwJB14eLKXgK0SOtz4aXg@mail.gmail.com>
 <53C47AE7.9040404@aon.at> <53C5146B.90305@ccc.de>
 <CAP04ZYR9+zt-M-2LcvRUdH_q3-UenRNus7s_CrfnsUHKp0a4ZA@mail.gmail.com>
 <53C7AF52.1020803@aon.at>
Message-ID: <53C7B316.5010207@aon.at>

Actually the situation gets confusing: the reports claim, that e.g. the 
Orky (http://www.orky.de/)
does not clean dust very, but what I've seen myself is, that a filter in 
the air stream out of my
Siemens vac, (sucked by the Orky )became grey in minutes, while the same 
type of filter (?)
in the outlet stream of the Orky stayed absolutely white, after a much 
longer time.
Conspiracy theories lurk everywhere - the only remedy is measuring 
ourselves...

On 2014-07-17 11:11, Armin Faltl wrote:
>
> On 2014-07-17 10:17, Joe Nassimian wrote:
>> Now that being said, we do need a better cleaning equipment at the 
>> metalab, and this thread kind of turned into a motivator to build one.
> I too, do not endorse the abuse of equipment.
> A vacuum cleaner with the outlined features is however desirable in it 
> self (but see below).
>>
>> Armin, just let me know when you'll be working on it at the lab, and 
>> I'll show up with one of the turbines, apart from that, I'm not sure 
>> how else I can help.
> At the moment, I'm pretty busy, so I can just supervise a construction
> and contribute literature like the paper about cyclones. Throwing
> together a (simple) model on my CAD system may be possible,
> but I don't like to promise it (soon).
>
> So my approach is, to start with the frame and the gas washer.
> If we don't get the washer right, the entire project is doomed.
> The cyclone is there, just to prevent coarse material that might block
> them, to enter the nozzles of the washer. (A sieve would serve that
> purpose too, so it does a bit more ;-)
>
> http://www.ciao.de/Doring_Orky__Test_1074330
> http://members.aon.at/orky/orky/orky.pdf
>
> Well, after reading the 2nd test report, my enthusiasm for a water 
> filter/
> gas washer is more or less gone. Before we put any effort into that
> project, several points have to be clarified...
>
> Regards, Armin
>
> _______________________________________________
> CNC mailing list
> CNC at lists.metalab.at
> https://lists.metalab.at/mailman/listinfo/cnc
>

-- 
Mit freundlichen Gr??en,

Armin Faltl

----------
Dipl. Ing. Armin Faltl
Mechatroniker f?r Maschinen- u. Fertigungstechnik & Schlosserei
Heinrich Leflergasse 6, A-1220 Wien
e-mail: armin.faltl at aon.at
mobile: +43 676 44 44 922
phone : +43 1 282 86 38
UID-Nr: ATU-56556122




From silentstrider at gmx.at  Fri Jul 18 13:55:14 2014
From: silentstrider at gmx.at (Martin Kaiser)
Date: Fri, 18 Jul 2014 13:55:14 +0200
Subject: [CNC] Abendessen
Message-ID: <kbyk6qq2afep7nipej0971b5.1405684514019@email.android.com>

Gr??e! 
Nachdem ich heute wieder im Lab nin und es mich grade reizt, dacjt ich mir ich k?nnt was kochen
Es g?be fusili ala tricolora das perfekte essen f?r hei?e Tage
MFG MK

Armin Faltl <armin.faltl at aon.at> schrieb:

>
>On 2014-07-14 21:11, Joe Nassimian wrote:
>> I'm all for, but you make it sound like it's easy as pie. Proper 
>> cyclone modelling requires a few factors to be taken into account 
>> doesn't it? Like the suction pressure, size of the air inlet and 
>> outlet, and a few other parameters.
>I've seen and semi-read dissertations about the subject and yes, there's 
>a lot to it.
>But I've searched long enough, to find formulas, that allow dimensioning 
>with a pocket
>calculator - I've done it before, actually for a vacuum cleaner to empty 
>cans of wood ash.
>This works very well and can be scaled down a bit, if required.
>>
>> However I have never heard of orcy, neither seems google. Is it 
>> similar to the technology of those industrial cyclonic separators used 
>> to clean gas using a fluid that's injected into the cyclone?
>maybe it's spelled Orky / no, it's the other way round: a jet of bubbles 
>(that simply form) is injected into
>a bath of water (potentially with some tensides) by submerging a nozzle. 
>The jet then forms a system of
>vortices in the bath, that make the bubble-trails longer and finer, so 
>the contact area is maximized
>>
>> Anyways, I have two 1000W vacuum turbines that were pulled out of an 
>> industrial vacuum (a numatic I believe). I got them for a dust 
>> collection project I have in mind, don't know if a portable dust 
>> collector/vacuum can be designed to make use of them.
>Sounds Good
>> If it does, it would mean more shelf space for me, a fun project to 
>> collaborate on, and a proper cleaning equipment for the lab ... 
>> However to reduce the noise, maybe as suggested earlier by Armin, a 
>> centrifugal fan would make meeting the requirements easier.
>For a quick start of the project, one of the turbines should be fine.
>Once we know, the gas washer and the cyclone work, we can still
>optimize, by making it comfortable.
>
>thanks!
>
>_______________________________________________
>CNC mailing list
>CNC at lists.metalab.at
>https://lists.metalab.at/mailman/listinfo/cnc

From peter at schwindt-net.de  Thu Jul 31 09:24:06 2014
From: peter at schwindt-net.de (Peter Schwindt)
Date: Thu, 31 Jul 2014 09:24:06 +0200
Subject: [CNC] =?iso-8859-15?q?Laminat_abl=E4ngen=3F?=
Message-ID: <53D9EF16.6080307@schwindt-net.de>

Hallo liebe Neigungsgruppe,

ist in den n?chsten Tagen jemand (bevorzugt abends) im Lab und kann mir
ein St?ck Ikea Fastbo (Wandpanel, Laminat mit Alufolie darauf) in einem
geraden Schnitt k?rzen?

Sch?nen Dank schonmal,
Peter

P.S.: Bitte in CC direkt an mich antworten, bin nicht subscribed auf der
CNC-Liste