[sudoroom] Ferro Fluids Sudo Project group

Tue Jul 17 22:38:38 CEST 2012

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
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>>>>
>>>>
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