[sudoroom] Adjustable DC magnets

[Steve Berl]

If you want some help designing magnets and power supplies let me know. I
can probably help a bit.


Steve

On Thursday, July 19, 2012, Steve Berl wrote:

> Computer power supplies are cheap and can put out a lot of current. Might
> be a good starting point.
>
> Steve
>
> On Thursday, July 19, 2012, Patrik D'haeseleer wrote:
>
>> We really don't know how much power we'll need for this. Seems like most
>> of the youtube videos probably used a handheld magnet or a small
>> electromagnet, and zoomed in on the ferrofluid. If we use a significantly
>> larger volume of ferrofluid we may need to go to an industrial sized
>> magnet, but we really don't know at this point.
>>
>> Let's just start small (and cheap) and see where that gets us...
>>
>> Patrik
>>
>> On Thu, Jul 19, 2012 at 4:44 PM, Steve Berl <steveberl at gmail.com> wrote:
>>
>>> How much power do you need?
>>>
>>> Steve
>>>
>>>
>>> On Thursday, July 19, 2012, Anthony Di Franco wrote:
>>>
>>>> Try to find someone with an arc welding rig, that is about what you
>>>> want, in commonly available form.
>>>> Rectifying the power coming out of the wall should be doable as well
>>>> and fairly cheaply. Keeping some of the noise from the wall might make cool
>>>> vibrating visuals in the ferrofluid context despite that it'd be a drawback
>>>> usually.
>>>> A short cockroft walton ladder is another somewhat crazier idea, maybe
>>>> useful if it can be made to produce enough current; the voltage desired is
>>>> fairly low for these so you'd probably need few stages and perhaps cheaper
>>>> components would suffice than with doing everything in one go:
>>>> http://blazelabs.com/e-exp15.asp
>>>> A high power switching DC power supply is another option but likely to
>>>> be expensive and complex to build at this power level.
>>>>
>>>> On Wed, Jul 18, 2012 at 9:07 PM, Tracy Jacobs <kinetical at comcast.net>wrote:
>>>>
>>>>> http://www.ohiomagnetics.com/**hddcps.htm<http://www.ohiomagnetics.com/hddcps.htm>
>>>>>
>>>>> I think they are using something like this to get these motion effects
>>>>> with the ferrofluid.  Probably expensive equipment, but maybe Patrick knows
>>>>> how to DIY it?
>>>>>
>>>>> Tracy
>>>>> ______________________________**_________________
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>>>>>
>>>>
>>>>
>>>
>>> --
>>> -steve
>>>
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>>>
>>
>
> --
> -steve
>


-- 
-steve
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