[Robotgroup] Sisyphus: Static Charge...

Def Egge robodigest at innervate.com
Thu Dec 7 14:40:55 PST 2006


No!  The translucency of the retroreflexive glass beads is part of the beauty.

How about a self-adhesive foil strip along the inside of the acrylic case -
below the level of the beads - connected to a wire the runs through a small
hole (sealed with RTV) to a grounding clip on the frame?

All the best....

Mike (soon to be ex-president but never yet a voting member)



At 14:17 2006/12/07 -0800, you wrote:
>Maybe I should just go to Hobby Lobby and get some real sand.
>  Rick
>
>Paul Atkinson <pma32904 at yahoo.com> wrote:
>  Actually you can mail order it in the US without a license.
>
>Paul
>
>----- Original Message ----
>From: Don Colbath 
>To: vern at txis.com; Austin Robotgroup Mailing List 
>Sent: Wednesday, December 6, 2006 11:36:57 PM
>Subject: Re: [Robotgroup] Sisyphus: Static Charge...
>
>A little Polonium will dissipate the static charge. I hear you can 
>order it from Russia.
>
>Don
>
>Vern Graner wrote:
>
>>I was running the Sisyphus machine the other day to get a nice pattern
>>to leave "up" when the machine was off. I noticed that, with the dry
>>weather we've been having, the static electricity has *really* built up
>>around the machine.
>>
>>The sand is clouding the lid of the machine as the ball moves around.
>>Plus, the small amounts of dust produced tend to "fog" the lid and add
>>to the opacity.
>>
>>I was wondering if a Negative Ion Generator might be a way to reduce the
>>static build up on the Plexiglases box? Something like this:
>>
>>http://www.mpja.com/productview.asp?product=6057+KT
>>
>>If properly placed, would that allow the sand to "stay put" in the box
>>instead of jumping up and adhering to the lid? Just musing... Static
>>electricity is not my strong suit.. :)
>>
>>Vern
>>
>>PS: My strong suit has inflatable biceps... ;)
>>
>> 
>>
>
>-- 
>
>Is it Voodoo or am I getting remote acupuncture? Ow,ow,ow!
>
>
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