Subject:
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Re: SSClagorpion - Compressor
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 21 May 2004 02:48:16 GMT
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Viewed:
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18808 times
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In lugnet.technic, Eric Sophie wrote:
> In lugnet.technic, Kevin L. Clague wrote:
> > In lugnet.technic, Steve Hassenplug wrote:
> > > In lugnet.technic, Kevin L. Clague wrote:
>
> So, we're talk'n about compressors.
>
> This is where I'm thinking we should layout some questions so those who are
> following along (like me, until I get my hands on the eleptapod).
>
> Heh I just made that word up!
I feel better knowing that.
>
> Steve, Kevin, if you could, please, and if you don't mind, please play along.
Sure. I like games.
>
> Ok, Compressors for Leg Movement:
>
> Lots of Legs, How many Compressors.
> One right?
Hopefully one big compressor composed of three pistons each acting as a double
acting pump, driven by RC racer motors. Each RC racer motor is controlled by a
battery pack.
>
> K, Motor control for said compressor(s) to RCX, or Battery Box with possible
> motorized polarity switch for on/off position.
> Right?
The compressor will have a high pressure limit switch composed of large piston,
rubber band and electrical polarity switch.
>
> Pneumatic Switch Control to RCX.
> Spybot motor output to sensor to RCX to directional control of the Legs?
> Right?
RCX output to Mindstorms motor to control 8 pneumatic switches to control
forward vs. backwards.
Second RCX output to Mindstorms motor to control 8 more pneumatic switches to
control turn/not turn.
The spybot motors might be used to animate the claws.
>
> Or would you like the Spybot to just talk to the RCX(s).
> I know we have to point the RCX towards the Spybot.
> (Spybot in the head, two RCX behind pointing fwd, twds, back of Spybot.)
> Right?
That is my understanding.
>
> Kevin, what can I help you discuss in terms of construction.
I just need time for now.
> Steve, what can we do to help prepare Kevin to install Compressor at the best
> place in the body as well as placement theory of the other controls.
The compressor is going to be at the widest part of the body probably where the
8 hips come together. This will put the single heaviest component near the
centroid of the footprint.
In front of that are the two RCX's and in front of those is the spybot.
>
> Kevin, what does the best motorized Switch Control look like for you.
> Or do we need that?
> Or will you rig the gate logic in the pneumatics to move sequentially?
> That is to say will each leg be controlled independantly or will you link them
> so they move together in the air circut per given leg set.
I have not figured out the motorized pneumatic multiplexor design yet, nor the
motorized switches that stop walking. I used to use differentials off of the
compressor motors to flip pneumatic switches, but that won't work in this case.
The vertical pistons are hooked together in two groups of four.
The horisontal pistons are all hooked together.
The forward/reverse mux reverses the inputs to all the horizontal pistons, and
reverses the outputs of those pistons.
The turn/not turn reverses inputs to half the hip pistons and reverses the
outputs of those pistons.
>
> Head hurts yet?
Nope. Just waiting for a few more parts to finish the compressor.
>
> Pardon the questions, I just like to clarify every once in a while to cover up
> my other simultaneous projects.
No problem.
>
> heh heh.
>
> e
K
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Message is in Reply To:
 | | Re: SSClagorpion - Compressor
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| (...) So, we're talk'n about compressors. This is where I'm thinking we should layout some questions so those who are following along (like me, until I get my hands on the eleptapod). Heh I just made that word up! Steve, Kevin, if you could, please, (...) (21 years ago, 20-May-04, to lugnet.technic)
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