pic: 1403 Teaser # 2

[slickguy2007]

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[slickguy2007]

This arm was built to be virtually indestructable. We had fun making this arm and I am gonna have a lot of thing using this on the field, especially when you see the manipulator.


GO 1403!!!

[zc923]

Just as a side not, the quick grips are not really a part of the arm, just there to mock up the suspected attachment.

[Arefin Bari]

I have to say, that it is a very cool arm.

... Would be very nice to know how it works. how much does it weigh?

[zc923]

One word, pnumatics.

Its aprox. 20-25 lbs.

[miketwalker]

Originally Posted by zc923

One word, pnumatics.

Its aprox. 20-25 lbs.

Eww, must take forever to extend multiple times then :-/ Pneumatics can be obnoxious when going that much of a distance, and if you dont use a big cylinder for such a long arm you don't have much strength. I'd be curious to see what happens after lifting one or two tetras, seems like it would take awhile to recharge pneumatics for such a long thing.

[slickguy2007]

Originally Posted by miketwalker

Eww, must take forever to extend multiple times then :-/ Pneumatics can be obnoxious when going that much of a distance, and if you dont use a big cylinder for such a long arm you don't have much strength. I'd be curious to see what happens after lifting one or two tetras, seems like it would take awhile to recharge pneumatics for such a long thing.

We have a big cylinder and plenty of speed, don't worry. The way the arm set up makes this thing very fast. No worries man...

[zc923]

If not use properly, yes, but our strategy is pretty much rock solid.

[miketwalker]

Originally Posted by zc923

If not use properly, yes, but our strategy is pretty much rock solid.

True, cause with the limit on air containers we have... and the time it takes the compressor to recharge the system... after 1 or 2 up and down movements, your gonna have to wait awhile for recharge, but like ya said... as long as you plan your strategy around it you'll be good... just don't extend up before you've made sure you caught a tetra, or its a bad day :-p

[roboguy #1]

Your all thinking to off. It's got to be a sealed arm, air fils inside of it like a telescoping cylinder acutally two onve its extended it will do the standard rotate on a pivot to raise and lower. I'm right I know I'm right. Also think about it this way unless the cylinder was like microscopic bore it would never have toime to extend and retract for every tetra. Once filled topped off for leaks. I'm right I know I'm right.

[russell]

You would be amazed how much you can do with not much air too. Last year we had a two stage arm, the first stage used two 1.5" x 2ft long rams, and the second stage used one fatty (2"?) ram that was two feet long. We could extend all three on a tank of air, and retract them (pulling the robot off the ground in the process) all within about 6 seconds. That compressor is fast and keep in mind that you can store the air at 120 psi. Additionally depending on how you plumb your pneumatics you can draw air from other rams essentially using them as tanks.

[Conor Ryan]

little bit of a change, its 20-25 pounds before we lighted it up. So it'll probably be around 15. The rest of the robot weighs like 80 pounds, so we should be under the limit.

oh and the time it takes for the arm to reach out and retract, you may find very suprising. Its a piece of art.

[Greg Perkins]

Originally Posted by roboguy #1

Your all thinking to off. It's got to be a sealed arm, air fils inside of it like a telescoping cylinder acutally two onve its extended it will do the standard rotate on a pivot to raise and lower. I'm right I know I'm right. Also think about it this way unless the cylinder was like microscopic bore it would never have toime to extend and retract for every tetra. Once filled topped off for leaks. I'm right I know I'm right.

apparently if you know your right, then you would know thats illegal..You cannot manufacture pnuematic components. so making tubular arms to extend via air in them is illegal. you must use the pnuematics that are allowed. Seriously man, do you think before you post? because it sure doesnt seem so. if you should remain posting, make sure you investigate your answers before you provide them

[Conor Ryan]

Originally Posted by roboguy #1

Your all thinking to off. It's got to be a sealed arm, air fils inside of it like a telescoping cylinder acutally two onve its extended it will do the standard rotate on a pivot to raise and lower. I'm right I know I'm right. Also think about it this way unless the cylinder was like microscopic bore it would never have toime to extend and retract for every tetra. Once filled topped off for leaks. I'm right I know I'm right.

uhhh, your wrong. I Designed and Built it, and your wrong. Just wrong. And have you even used a pneumatic actuator before? They are rarely slow.