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Halloween
Animatronics Volume 2
Pneumatics and Control Systems
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Halloween
RELAYS From
Halloween2go.com
From
Halloween Animatronics Volume 2
Running Time 1 hour and 42 minutes
RELAYS-
If you plan on using pneumatics in your Halloween
Animatronics or if you plan on using DC motors to move things,
You GOTTA use Relays! So of course we cover it fully. I''m
going to show you what you need to know to activate the
pneumatic valves that are going to move our props. This
section will quickly demistify the subject and soon you
will be using relays to assist controlling many devices.
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SINGLE
PULL - DOUBLE Throw This one is called a single
pull, double throw. That just means that single pull (only
one L-shaped lever moves the contactors) and 'double throw'
means that there are actually TWO separate sets of contactors.
It's like having TWO relays in one! You can actually switch
on and off two separate circuits. Like a Light and a DC motor
or AUDIO and a pneumatic valve! I'm sure that once you understand
Relays, you will think up many ideas of what you can control
with them. I am going to be using these relays to a great
extent on this video. Specifically to switch on and off an
AUDIO signal and a pneumatic valve to provide instant MOTION
and SOUND.
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A few
relay facts: Relays can switch AC and DC. Transistors can
only switch DC (But we're only going to use DC current in
my video) Relays can switch high voltages, transistors can
not. (Again, the highest DC voltage we will switch is 24 volts
DC) Relays can switch large currents (And for safety, our
current loads will be very, very small) Reed relays are the
fastest relays because the coil surrounds the 'reed' portion
We
Start EASY with Schematic 1... You can do it..
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though we start a bit slow so that no one is left behind, we
get an awful lot done right away. Schematic 1 can be used to
manually control a pneumatic valve, getting you off the ground
quickly! You can easily build this circuit and put it to use
right away! |
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| I've included all the parts lists with each
schematic as well as part numbers and where to order them! This
will save you lot's of time! |
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