[sudoroom] Adjustable DC magnets

[Steve Berl]

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<javascript:_e({}, 'cvml', '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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