Alt-BEAM Archive
Message #01751
To: beam beam@corp.sgi.com
From: Richard Piotter richfile@rconnect.com
Date: Thu, 25 Mar 1999 01:36:59 -0600
Subject: [alt-beam] 3 way MUX???
Is there a single chip that will allow my to switch between 3 sets of 4
lines? I could do it with a 245 or similar chip, but I'd like to save
space. I suppose I could rig up 2 MUX's like the ASCII, one NUX to
select walk or gert up and the other to select which side the bot is
laying on...
This is what I have so far
___
| |-------------4 Nv loop for walking
----| | ___
|___|----| |----4 Nv Chain for right self lifting sequence
| |___|----4 Nv Chain for left self lifting sequence
| |
| |
Walk/Get Up |
|
Fell Left/Right
What I'd like though is as follows...
___
| |----4 Nv loop for walking
----| |----4 Nv Chain for right self lifting sequence
|___|----4 Nv Chain for left self lifting sequence
||
| \_____
| \
Walk/Get Up |
|
Fell Left/Right
The balancing is done with mercur switches. I need to clean up the
motors on MECI IV M. I can't believe they corroded like that! I need
better acid flux cleanup practices! Yikes! I've been around rosin core
too long! I'm thinking of just pulling the plastic sleves off the
gearboxes so I can easily get to the gears to clean them.
Richard Piotter
richfile@rconnect.com
The Richfiles Robotics & TI web page:
http://richfiles.calc.org
For the BEAM Robotics list:
BEAM Robotics Tek FAQ
http://people.ne.mediaone.net/bushbo/beam/FAQ.html
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