Alt-BEAM Archive
Message #12946
To: beam@sgiblab.sgi.com
From: Chris Weimann cweimann@telusplanet.net
Date: Sun, 02 Apr 2000 23:29:09 -0700
Subject: Re: Conductive Epoxy?
as i understand it thats how they make resistors
two wires with semi-conductive materiel in between
with funny painted lines on the outside :-)
but as far as i can tell it don't hurt the bots, and makes them stronger to falls
off the desk :-(
-chris
TurtleTek@aol.com wrote:
> Greetings List,
>
> It's been a while, I haven't been posting much but I assure you I've been
> ghosting. This is just about as active as I've seen the list be in some
> time...must be that Smithonian article.
>
> Anyway, on to the real deal. I've heard many BEAMers recommend encasing
> finished circuits in epoxy and I am planning to do so on this free-formed
> "fang-avore" circuit I just finished (yes, yet another! ;).
> I decided to pull out my multimeter and measure how resistant my epoxy
> was. You know, to make sure I don't pour on something that'll short the whole
> thing out. Well, It doesn't really conduct...but it doesn't provide much
> resistance either. It was at about .78 Mohms.
> How did I test that? I took two metal leads, stuck one end of each in a
> blob of the epoxy, let it dry, and measured the resistance between the two
> leads. The leads were about 3 mm away from touching.
>
> So, is that not enough resistance? Or can I pour it on? Thanks.
>
> Brien the TurtleTek
> www.extremesc.com/turtletek/beam
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