hi guys need some help with the new game gateway. Any one got any ideas on how to pick them up. My idea fail. any ideas
It would help a lot if you were to specify exactly what designs you've tried, what you've considered, and what type of robot you are looking for. From my observations, there are a couple successful designs that fall under a few different categories.
I'll start with drive trains:
For a decent drive train, you should be looking to invest at least four 3-wire motors. The most basic chassis to construct is the U-shaped chassis -- look around, there are plenty of threads that discuss chassis types. If you're being ambitious and have the programming ability, look towards building an X or H holonomic drive. I would recommend looking at smartkid's holonomic tutorial to see how these work.
Now, for the game-specific aspects:
This really depends on your skill level, but the easiest to build would be a simple pivot arm. Other options to consider, if you want to be able to reach the 30" goals, are the trending "6-bars". Search the forums and you will find explanations and examples aplenty. Additionally, there are the conventional four bar parallelograms, linear lifts, and their respective variations.
There are some pretty decent feed methods at this point in the season.
This list is definitely not an all inclusive list of possibilities, but certainly a start. Without any specific details about your robot, there's nothing specific I can really tell you. I can tell you this though: explore the forums, look at past years' robots, talk to other members and you'll surely come up with something. Some good things to think about when building the robot are motor distribution, the capacity you're aiming for, the speed and power of the drive, the height of your arm, and whether or not you want a continuous feed.
Everything RampantFang posted is very good advice.
If you want to see videos of robots and competitions to see what other teams have built, this is a good place to start: http://www.vexforum.com/wiki/index.php/Gateway_Videos[/url]
For some videos of a recent tournament which haven't been uploaded to that site yet: [url]http://www.youtube.com/user/dtengineering[/url]
I highly recommend taking a look at 2941's bot. It's very simple yet surprisingly effective. You seem to be most interested in feed mechanisms and their design is quite common among the bots I've seen. Here's their forum reveal: [url]http://www.vexforum.com/showthread.php?t=56818&highlight=2941[/url]
AURA has also posted reveals of their robots. They're more complex, but if you're feeling up to it: [url]http://www.aura.org.nz/archives/918[/url], [url]http://www.aura.org.nz/archives/955[/url], [url]http://www.aura.org.nz/archives/950[/url], [url]http://www.aura.org.nz/archives/972[/url], [url]http://www.aura.org.nz/archives/968[/url], [url]http://www.aura.org.nz/archives/966
Hope this helps!
I was, about a year ago thinking the exact same thing for the game roundup. I had built 3 full robots before I came to my robot that I used for the game. Faliure is NOT a bad thing when it comes to building. I think i learned more from my failures than my success.
Also, right down all your ideas in a notebook so that you can have a record. (do this, I learned that the hard way) It really helps having a record so that you may build off of them and try new things.
Just my $0.02