Alt-BEAM Archive
Message #12818
To: beam@sgiblab.sgi.com
From: Bruce Robinson Bruce_Robinson@telus.net
Date: Wed, 29 Mar 2000 20:52:32 -0800
Subject: [alt-beam] Re: Spam!
Mike Kulesza wrote:
>
> ... but how do you get an email's header frames?
In Netscape it's View - Page Source.
Bruce
12819 Wed, 29 Mar 2000 20:52:39 -0800 [alt-beam] Re: G.S.O.A.I.T. beam@sgiblab.sgi.com Bruce Robinson BUDSCOTT@aol.com wrote:
>
> THANKS for all the comments, they've been helpfull, i do agree
> with your points about standardizing the course, i just wanted
> to get some input first ...
And as with every good idea, everybody has their own vision of how it
should be. You might want to think about two or three different levels
of rating ... something for the more basic robots and something for the
more advanced ones. If a robot scores too high in one category, it
automatically gets bumped up to the tougher one.
Bruce
12820 Wed, 29 Mar 2000 20:53:23 -0800 [alt-beam] Re: burning chips (was: Allmost complete walker.) beam@sgiblab.sgi.com Bruce Robinson sebastiaan van Vliet wrote:
>
> Is it easy to burn a chip?
Typical chip specs for CMOS chips (C, HC, HCT families):
Soldering time at 260 degrees Celsius at a distance of 1 mm from the
body of the chip is 8 to 10 seconds. (Lead-tin solder typically melts at
220 degrees Celsius.)
You shouldn't have too much trouble if you pause periodically and let
things cool down. The most common mistake is to apply the solder too
soon. Then you get a cold joint and have to go back and heat up all the
pins again.
Bruce
12821 Thursday, March 30, 2000 2:57 PM Re: Active Feeler beam@corp.sgi.com Justin
>This is cool.
>I was wondering if it's not too much trouble e to take a picture of the
>piezo and how the wire is attached - I've never played with these before
>and I don't even know what the parts should look like or how they go
>together.
>
>Also, you say the feeler connects to the ground side, but the diagram
>shows it on the other side - have you reversed the piezo?
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