"hydraulics"
 

Anyone else have the problem of people coming in to look at the robot, then shouting out "Hey, look at the cool hydraulics!" WE have to constantly tell people that they are pneumatics, not hydraulics.

Re: "hydraulics"
 

Lol yeah, that just happened to us at one of our meetings. The little brother of our pneumatics guy sat and argued with him about whether or not they were pneumatics or hydraulics.

Re: "hydraulics"
 

most people don't know the difference between pneumatics and hydrolics...i didn't know until a few years ago

Re: "hydraulics"
 

Yeah, when we practice with the robot in the commons (our school's main passing/social area) we'll get a number of kids with the usual questions/comments.

"Cool! Hydraulics!"
"What does it do?"
"Can I drive?"
"WOW! A battlebot!"

Re: "hydraulics"
 

Or the sarcastic one:

"It doesn't fly"

You can let them assume it is hydraulics unless they need to know different. Their are only slight differences kind of.

Re: "hydraulics"
 

It's easy to get mistaken, the only difference between the 2 is that hydraulics is powered by a fluid of some time (water or sometimes an oil of some sort) while pneumatics is powered by air.

Re: "hydraulics"
 

That last one got old REAL FAST!!!

Re: "hydraulics"
 

BIG difference!
Air is compressable, hydraulic fluids are not (usually oil, rarely water)! That means that pneumatic systems can store energy relatively easily in a tank, but are not very accurately positionable under changing loads. Hydraulic systems are a lot heavier, and all energy has to be provided by the pump at the time when its needed (unless a pneumatic tank stores energy - in which case you could use pneumatics right away).
For the uneducated admirer of the bot, though, they are just the same :rolleyes: LOL

Re: "hydraulics"
 

I'm sick of the kids that say that doesn't look like a robot. They think the robot is supposed to look like some sort of human. When I tell them what it is they want to know how it is going to destroy the other robots.

Re: "hydraulics"
 

I didn't know until February 19 at 5 PM when my team decided that we would be using pneumatics and I had to learn how to hook them up right and make sure it was programmed correctly . . .

Oddly enough the penumatics worked perfectly on the first try.

It seems that, in FIRST, the harder something is to do, the more likely it is that you will get it to work. We've done at least 4 good things completely by accident.

Re: "hydraulics"
 

as a janitor who walked into our room said.. "What are you STUPID?! That things never gonna fly!"

Then..."What is this, Monster garage?"

*Stephen shows the janitor our arm mounts, telling him they are the 50 cal cannon mounts...*

"50 Caliber, now thats what I'm talking about!"

Re: "hydraulics"
 

fill 4 tanks to 120 psi. release all the air into an aluminum tube with inside diameter of 3/8..... ther is a steel 3/8 rod inside.....
goes through a couple pizza boxes and quite a bit more.....
now WHO says hydraulics are more fun than pneumatics???

EDIT: make sure you have your safety goggles on!!!

Re: "hydraulics"
 

pneumatics are more fun to play with because hydralics are so slow

you cant compress hydralic oil so you have to pump it to make the cylinders move - the speed of the cylinder is dependant of the speed of the oil through the pump.

but with pneumatics, you can pressurize a tank and BLAST it into the cylinder in a fraction of a second

(or so I have been told :c)

Re: "hydraulics"
 

We are built our bot in a "special education" classroom. About four people every day would ask us if it could go off jumps or grind railings and just generally stupid questions.

Re: "hydraulics"
 

in addition to "can i drive it" another common one is "can it kill people" or "let me see it transform!". this year with our tower "can it pick me up???"

some people... :rolleyes: