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Subject: 
Re: Hex565 - one leg at at time pneumatic hexapod
Newsgroups: 
lugnet.technic, lugnet.robotics
Date: 
Wed, 5 Oct 2005 02:46:37 GMT
Viewed: 
4692 times
  
In lugnet.technic, Eric Sophie wrote:
In lugnet.technic, Kevin L. Clague wrote:
Over the last few weeks, I've been working on a pneumatic hexapod that moves one
leg at a time.

I got it working this morning.  It is pretty cool.

I'll say! Now I also say, "I get it!"
I had to stare and read pretty hard.
I'll send you my advil bill.
(lol)

Sorry about the headaches..... ;^)

<snip>

Here are pictures of the leg lift/drop mechanism. The legs have a cute leg lock
mechanism driven by the horizontal small pistons.

http://www.brickshelf.com/gallery/kclague/hex565/p9300004.jpg
http://www.brickshelf.com/gallery/kclague/hex565/p9300005.jpg

NOW That rocks.

I really like the legs.

<snip>


Here is a closeup of a new piston/switch geometry I've been trying.  It reduces
the amount the large piston can expand or contract, given the way it is hooked
to the switch.  The switch itself constrains the piston.  The cams prevent the
piston from pulling the perpendicular axle connector off the switch:

http://www.brickshelf.com/gallery/kclague/hex565/p9300003.jpg
http://www.brickshelf.com/gallery/kclague/hex565/p9300007.jpg

Ahhhhh Haaaaa, and you explained in English, I love it. This is integral.

This configuration uses about half the normal throw of a large piston.

Still the volume of air is what counts, not the size or rather the length of the
throw. (please humor me and pretend I know what I'm talking about.) Have pitty.

Ah, yes, but the volume of a cylinder is the area of the face of the cylinder
times the length of the cylinder.

By halving the length, we cut the total volume in half, right?

<snip>

Kev, I think this is Uuum Badda Bad - go big Badda Boom.

Excepting the fact that it is ugly, your continued application evolution
astounds. Blend your machines with organics. Couple of monkey arms and your
good.

Just teasing your pure mechanics.

You sir are the Pnuemo King.
Exciting and inovative work. Thank you!

e

Thanks!

Kev



Message is in Reply To:
  Re: Hex565 - one leg at at time pneumatic hexapod
 
(...) I'll say! Now I also say, "I get it!" I had to stare and read pretty hard. I'll send you my advil bill. (lol) (...) Oooohhh Ya, I like that. (...) Amazing! Short vowels. (...) Still the volume of air is what counts, not the size or rather the (...) (19 years ago, 5-Oct-05, to lugnet.technic, lugnet.robotics)

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