[sudoroom] Fwd: Ferro Fluids Sudo Project group

Wed Jul 18 04:14:23 CEST 2012

Instead of moving a magnet around, I was thinking of installing a couple of
small fixed electromagnets, and just change how much you power each of
them. No moving parts required, except for the ferrofluid itself.

With some luck, I may be getting the magnetite by tomorrow. Has anyone
found a source for oleic acid, to add to the DIY ferrofluid as a
surfactant? Sounds like oleic acid is used in soap making, so craft stores
or health food stores may carry it.

Patrik

*From: *Tracy Jacobs <kinetical at comcast.net>
> *Date: *July 17, 2012 6:07:40 PM PDT
> *To: *"Patrik D'haeseleer" <patrikd at gmail.com>
> *Subject: **Re: Ferro Fluids Sudo Project group*
>
> Worth a try!  I've been seeing stuff on youtube where they say  they are
> changing the magnetic field on what looks like a solid hunk of metal to
> make changes in the fluid, but apart from moving magnets around under it or
> on it, how would that be accomplished?  And for the dish under the
> sculpture to catch the fluid, do we want something conductive or
> non-conductive?  I am a little confused about this, and glad you are
> willing to help!  Let me know what other things we might need that I might
> have around here, ok?  If you think of anything.  I don't think I have a
> big plastic skull.  It's hard to believe that plastic and foil would work,
> actually, I'm curious to see though.  Is anyone else planning to attend
> this or is it just me and you Patrik?
> Did you get your oxide shipment yet?
> Tracy
> On Jul 17, 2012, at 1:38 PM, Patrik D'haeseleer wrote:
>
> I was thinking that some non-magnetic material would make it easier to
> manipulate the overall magnetic field using some low-powered
> electromagnets. Hence Alu foil instead of cast iron.
>
> Actually, we could just start from a cheap plastic skull ($17.27 on Amazon<http://www.amazon.com/Anatomical-Chart-Company-CS20-Life-Size/dp/B000VKSDYE>,
> or dig through your Halloween closet), and implant some magnets to get the
> ferrofluid to stick.
>
> Patrik
>
>
> On Tue, Jul 17, 2012 at 9:24 AM, Tracy Jacobs <kinetical at comcast.net>wrote:
>
>> Patrick,
>>
>> I love your idea !  Cast iron would be better than foil to be sure.
>>  Maybe greenman would be a fitting subject.
>>
>> I'm ok with Wed or Fri, maybe Friday if I have to run around and get
>> supplies too.
>>
>> Tracy
>>
>> On Jul 17, 2012, at 1:12 AM, Patrik D'haeseleer wrote:
>>
>> I could do Wednesday or Friday - prefer Wednesday. I can bring my small
>> sample of cemmercial ferrofluid for comparison with the DIY versions.
>>
>> Does anyone have access to oleic acid to use as a surfactant? That should
>> keep the ferrite particles from clumping together, and make for a much
>> smoother ferrofluid. Supposed to be around 5% magnetite (3-15% by volume),
>> 10% surfactant (6-30%), and 85% oil (55-91%).
>>
>> Someone on Instructables mentioned you can also get ferrite at a pottery
>> supply store for $2-$5 a pound. Know anyone into pottery? Anyone want to
>> check out Leslie Ceramic Supply, 1212 San Pablo in Berkeley, just North of
>> Gilman?
>>
>> In terms of art pieces, I think it would be really cool to do an animated
>> sculpture covered in ferrofluid, with electromagnets hidden inside so you
>> can change the texture of the ferrofluid. The simplest version could just
>> be a face molded out of aluminum foil, with small magnets embedded to get
>> the ferrofluid to cover the surface. Then put some electromagnets behind
>> the face, so you can change its expression by manipulating the ferrofluid.
>>
>> Patrik
>>
>> On Mon, Jul 16, 2012 at 10:11 PM, Tracy Jacobs <kinetical at comcast.net>wrote:
>>
>>> Hi All,
>>>
>>> Thanks for expressing interest in doing a Ferrofluid experiment
>>> together.  I'd love to make our project the centerpiece of our Art Murmur
>>> show.  Art Murmur is in two weeks.  I asked Jake to share his experiment
>>> during Art Murmur.  He made his in like a day, and it turned out really
>>> well.  He mixed MICR with cooking oil and put it between two slides with a
>>> magnetized paper clip.  That was projected on a wall for a really
>>> interesting painterly effect.  Very small scale and inexpensive, too.
>>>
>>> So, we need Ferrofluid.   I know Patrick ordered some iron oxide, and he
>>> has sent us some good links.  There are different methods we can try for
>>> making the fluid ourselves, because it can be expensive to buy.  I want to
>>> try a couple different recipes.  Patrick can you get back to me with your
>>> reccomendations for what we should try and what we still need to buy for
>>> that?
>>>
>>> I am interested in magnetizing a couple of iron sculptures that I made a
>>> long time ago.  From what I understand this involves wrapping them in
>>> coated copper wire and charging them.  If you find any interesting steel or
>>> iron objects, these would be good to play with.
>>>
>>> We also need magnets.  Powerful magnets can be taken from old hard
>>> drives, so if you have any old hard drives bring them.  I will bring tools.
>>> Or if you have any magnets, bring those.
>>>
>>> We should meet up soon.  Could you let me know your availability?   I
>>> have Weds night, Fri night, or the weekend anytime.
>>>
>>> Tracy
>>>
>>> www.funkyautomata.com
>>>
>>>
>>> On Jul 16, 2012, at 12:36 PM, Jehan Tremback wrote:
>>>
>>> Wow, imagine making a batch with a 44 lb bag, using a gigantic
>>> electromagnet, and creating the hugest ferrofluid sculpture known to man.
>>> Might be messy if the power cut out though.
>>>
>>> -Jehan
>>>
>>> On Mon, Jul 16, 2012 at 9:12 AM, Anca | Tech Liminal <
>>> anca at techliminal.com> wrote:
>>>
>>>> The rust lady said she got all her supplies at Michael's - but that
>>>> they weren't well-labeled.  Look in the patina isle (yes, there is a patina
>>>> isle!)
>>>>
>>>> Anca.
>>>>
>>>>  -=-=-=-=-
>>>> *Anca Mosoiu  | Tech Liminal*
>>>> anca at techliminal.com
>>>> M: (510) 220-6660
>>>> W: http://techliminal.com  | T: @techliminal | F:
>>>> facebook.com/techliminal
>>>>
>>>> On Jul 12, 2012, at 6:14 PM, Patrik D'haeseleer wrote:
>>>>
>>>> I got some ferrofluid from Inventables a while back - wasn't too
>>>> expensive: $13.60 for a fluid ounce. Haven't tried mixing it with any water
>>>> colors yet though.
>>>>
>>>> https://www.inventables.com/technologies/magnetic-fluid
>>>>
>>>> I also noticed that the person teaching the "Create Real Rust" class at
>>>> Workshop Weekend had a jar of atomized iron powder that I was thinking
>>>> would probably work fairly well to make ferrofluid. May be worth checking
>>>> some art stores with a magnet - or just ask that teacher where she got hers.
>>>>
>>>> I think the Exploratorium or another similar booth had a nice
>>>> ferrofluid demo at Maker Faire one or two years ago. Just a big glob of
>>>> ferrofluid in a glass jar, and some powerful magnets that people could move
>>>> by turning a wheel.
>>>>
>>>> Patrik
>>>>
>>>> PS: Doesn't quite classify as a ferro"fluid", but check out the video
>>>> about this guy's work:
>>>>
>>>> http://jolanvanderwiel.nl/?p=272
>>>>
>>>>
>>>>
>>>> On Thu, Jul 12, 2012 at 5:32 PM, Tracy Jacobs <kinetical at comcast.net>wrote:
>>>>
>>>>>
>>>>> http://www.thecreatorsproject.com/blog/ferrofluids-go-next-level-technicolor-in-fabian-oefners-amazing-images
>>>>>
>>>>> Begin forwarded message:
>>>>>
>>>>> *From: *Tracy Jacobs <kinetical at comcast.net>
>>>>> *Date: *July 12, 2012 5:29:10 PM PDT
>>>>> *To: *SUDOroom list <sudoroom at lists.hackerspaces.org>
>>>>> *Subject: **[sudoroom] Ferro Fluids?*
>>>>>
>>>>> Hi,
>>>>>
>>>>> I was wondering if anyone would be interested in doing some
>>>>> experimentation with Ferro fluids as a group project?  If we get nice
>>>>> results we could put them in the box office next Art Murmur.  I've been
>>>>> wanting to try that for a long time, and there are some methods that are
>>>>> free or under ten dollars cheap.
>>>>>
>>>>> http://www.instructables.com/id/Make-your-own-ferrofluid-in-5-minutes/
>>>>>
>>>>> A nicer example:
>>>>>
>>>>>
>>>>> https://www.facebook.com/home.php?ref=home#!/photo.php?fbid=503571739658618&set=a.133255743356888.23929.115384328477363&type=1&theater
>>>>>
>>>>> Tracy
>>>>> _______________________________________________
>>>>> sudoroom mailing list
>>>>> sudoroom at lists.hackerspaces.org
>>>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> sudoroom mailing list
>>>>> sudoroom at lists.hackerspaces.org
>>>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>>>
>>>>>
>>>> _______________________________________________
>>>> sudoroom mailing list
>>>> sudoroom at lists.hackerspaces.org
>>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> sudoroom mailing list
>>>> sudoroom at lists.hackerspaces.org
>>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>>
>>>>
>>> _______________________________________________
>>> sudoroom mailing list
>>> sudoroom at lists.hackerspaces.org
>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>
>>>
>>>
>>
>>
>
>
>
> _______________________________________________
> sudoroom mailing list
> sudoroom at lists.hackerspaces.org
> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.hackerspaces.org/pipermail/sudoroom/attachments/20120717/e369efad/attachment.html>