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bresnik
http://www.physorg.com/news3472.html

Though the article
moron
Why bother? This whole thing was done by idiots, for idiots -- and I am a moron, _not_ an idiot.

Point: the deficiencies and inherent flaws of tracked-vehicle design and realisation are well known. Sand, small pebbles, short sticks, et al *will* stop this "vehicle" cold.

Second point: there is only one motor and drivetrain in this device. Therefore, the jamming of even a single tread will render the entire machine completely inoperable. How stupid.

Arthur C. Clarke had it right --- spheres with tentacles; _that_ is the ultimate in agility and mobility, for robotic design. Plus, such units can easily link together to form a much greater whole, if required --- they could perform nearly *any* engineering, construction, or transportation task.

And for the military... well: imagine a carpet of many thousands of these murderous little machines, rapidly rolling towards you in piranha-like frenzy...
tarpitdude
Do you have any references/links to this "Clarke Machine"?

.drt
amnesia
QUOTE
Do you have any references/links to this "Clarke Machine"?


You mean like one of his 70+ popular books? laugh.gif
Guest
QUOTE
These treads prevent the snakebot from stalling or becoming stuck on rough terrain because, similar to a tire touching a road, t the treads propel the robot forward like a tire touching a road.


Approved by the Department of Redundancy Department.
MattWeston
QUOTE
Why bother? This whole thing was done by idiots, for idiots -- and I am a moron, _not_ an idiot.

Point taken, you are a moron. This is an excellent device particularly for tunneling applications. Additionally, the current version is only a prototype, so the single motor thing will probably be changed if it becomes problematic.

I think in melee combat, these things would be just as effective as spherical robots with tentacles. One significant advantage of tracks it the greater surface area (and friction). Mount a gun down the center, and the snake will handle the recoil better than a sphere (unless the tentacles are particularly hefty, which would in turn reduce their agility).

Imagine if they made one of these suckers as big as the worms on Dune. cool.gif
poo
hey moron Clerks idea is good for the technologies to come....i dnt think sphericle robots with tentecles could be easy to made because each of them need seperate power
plus intelligence to work.it would make things more complicated but this idea is great in terms of current technologies,easy to make and maintain........snakes can move through sand or pebbles.....they can develope the Tread to do that........think logically man.......
Guest
QUOTE
n one test, the OmniTread climbed an 18-inch curb, which is over more than twice its height.


Not just more than twice its height, it's over more than twice! That's like, double the height or something.

QUOTE (->
QUOTE
n one test, the OmniTread climbed an 18-inch curb, which is over more than twice its height.


Not just more than twice its height, it's over more than twice! That's like, double the height or something.

The research was to appear in the appears on the March 18 edition of the International Journal on Industrial Robots


A correct sentence was to appear in the appears on this article.
moron
QUOTE (poo+Mar 24 2005, 07:25 AM)
snakes can move through sand or pebbles.....they can develope the Tread to do that........think logically man.......

Snakes do not have treads, nor do they have any entry points for sand or pebbles or sticks to work their way into. And you're telling *me* to think logically? What have you been smoking?
Johann Borenstein
Some participants of this forum are amazingly fast with their judgement.

Here are some comments by the inventor of the OmniTread:

1. The model shown in the photos on this web site, the OT-8, performs exceptionally well in sand. We have run it for extended period in our sandbox. See some more test results in this recent paper:
http://www-personal.engin.umich.edu/~johan...rs/paper110.pdf

2. Our latest model, the OT-4 (half the diameter of the OT-8), is designed with clutches that allow each track to be engaged or disengaged individually. This feature is mostly aimed at saving battery power, but it can also be used to disengage a disabled track.

3. The single motor design is the result of careful study and experimental validation. The design is advantageous over having a motor in each segment because it saves weight, volumen, and electric power. The only real disadvantage of the design is that it limits the bending of the joints to 35 deg. However, the pneumatic actuators impose about the same limit in bending, so even if we had individual motors, the joint angles would still be limited.

Johann
moron
Well, good luck with that, then -- I wouldn't buy one. Natural organisms don't have open surfaces or rotating shafts, for good reasons.
Guest
QUOTE (moron+Mar 24 2005, 03:23 PM)
Well, good luck with that, then -- I wouldn't buy one. Natural organisms don't have open surfaces or rotating shafts, for good reasons.

Yes...... soon my army of highly trained snakes and monkeys with sealed nostrils, eyes and ears will be ready for me to take over the world MUAHAHA!! Yours for 1 million dollars.......
proof reader
I was thinking the same thing.. That it's similar to a tire touching a road, like a tire touching a road.
Insyght
When I read this, I envisioned future posibilities, not the restrictions of currect design

1) Seperation of snake into individual chunks that communicate with each other in a chain. I.E. Node at end says we want to go farward, but there is a rock next to me. This gets shuffled to node 2. Node 2 works to lift node 1. First says, good, but not enough. Third node becomes involved - nodes 1 and 2 lifted. Node 1 says, we are there. Node 2 and 2 relaxes. If node 2 becomes disabled, node 1,3 and the 4 can perform the same function...

2) Each node could containing different momentum devices, which you can customize depending on mission. Some with claws for climbing, paddles for swimming, wheels for speeding, etc. Each node can active it's moment device as needed by the device as a whole.

3) You could incoorperate power nodes. A node that simply supplies power to surrounding nodes.

4) These nodes call all be plug and play smile.gif

5) You could have equipment nodes for specific purposes, such as camera's, scanners, etc.

6) node ejection. If a node becomes disabled, it would be possible for the two remaining parts to eject the damaged node and re-join to create a new device... taking this father... for the snake to pickup new power nodes or equipment nodes, or
perhaps dropping off a spy node at some secret location, before fleeing the scene. All very possible.

I could go on, but I think the point I am making is that with a ball and tenticals... you have a ball and tenticals. If a tentical becomes damaged, you have problems. This does not need to be the case with the snake.

I like the concept of snake, though it is currently primitive in design.

rpenner
QUOTE (moron+Mar 24 2005, 03:23 PM)
Well, good luck with that, then -- I wouldn't buy one. Natural organisms don't have open surfaces or rotating shafts, for good reasons.

There are microscopic structures like the flagellum and cilia in Archea, bacteria and eukaryotes which have rotating shafts.

Some viroids lack cell walls or protein coats making them as "open" as is possible for DNA/RNA-based life.
MattWeston
Just think of the mobility of this thing if it was longer, say thirty nodes. Then it could not only use it treads to move, but also move like a real snake. With the ability to push off objects, or coil around them, a robotic snake could climb things a sphere would have no chance of.

Imagine this thing coiling around a smooth pipe, using compression to gain friction, and climbing right up it, with it's treads. I'd like to see a tentacled sphere do that. With different types of tracks or paddles, the range of environments could be limitless. Imagine using magnetic tracks to climb metal structures.

I also really like Insyght's modularity concept. You do have more weight from duplicated parts, but the plug and play aspect would probably be worth it.

My vote is that we scrap the current plans for the next Mars rover, and replace it with one of these. Then we could actually look in caves, and other such places, for life. Tho only major problem would bet the power supply (not much room on the exterior for solar pannels). You would probably need to use one of those little nuclear power supplies.
cool.gif
dzinegrp
Moron has a good point. This device seems like a rather poor hybrid of a tank and a snake. Why not go to mother nature's concept cabinet: Reverse this design, put the drive belts - or some version - inside a kevlar skin of back facing scales. Like a snake, the internal motion forces the scales into the ground surfaces propelling the whole thing forward.

On 23-Mar-2005 by moron
Why bother? This whole thing was done by idiots, for idiots --
and I am a moron, _not_ an idiot.
[]
moron
Imagine: an aluminum disc, thickly anodised, and with a hole in the centre. Further imagine a hard steel rivet, swaged into this hole -- giving the aluminum disc an appearance similar to a galaxy; flat and disc-shaped, but with a spherical bulge at the centre. Next; imagine hundreds or thousands of these discs, strung along a cable of high-tensile phosphor bronze, and _under_ considerable tension -- forming a long, flexible, array. Finally; sheathe the array with a tubular braid of tough, highly-flexible, electrically-conductive material.

Now; upon each anodized disc, deposit conductive material and etch it into patterns of electromagnets -- minimum 4; preferably 8, or more -- arranged radially about both the upper and lower surfaces. Surface-mount transceiver and control chips, and power mosfets, to form addressable control and drive circuitry for the electromagnets. Make the outer braid sheath "ground", and the inner tensile cable "supply"; feed both the driving current _and_ the high-speed serial interface along this inner conductor.

With a structure that can flex in any direction, and addressable, controllable electromagnets that can attract and/or repel in any direction, as well as a tough, impervious, flexible outer sheath... what do you now have?

Tell me. Let's see how much imagination you've _really_ got.
poop
hi cool robot laugh.gif biggrin.gif rolleyes.gif
saily
i think that the robot is so cool cool.gif
entrenty
i love that robot
RealityCheck
Hi moron, hi all.

Has anyone else noticed that the vertebrate (semi-rigid-spine endowed) human animal is realy just a snake with 'added extras'?

Jesting regards: RealityCheck.
little John
great, i think it will survive more people in danger .
I use network at shandong province,east of china
homohater
Here's a nice big *** YOU to the faggot that deleted my post. *** Clit Drip.
Clamitia
I hope your mom's pussy isn't still swollen *****.
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