pic: Team 935's Chassis

[Andrew Bates]

Why did you CNC so much? I only ask because to me it would make more sense to build a separate upper frame instead of extending the CNC so high up.

[Akash Rastogi]

Originally Posted by corpralchee

Why did you CNC so much? I only ask because to me it would make more sense to build a separate upper frame instead of extending the CNC so high up.

The last three posts of this thread pose similar questions and comments. Left unanswered to curious minds.

http://www.chiefdelphi.com/media/photos/34715

Originally Posted by Steven Sigley

It's not gonna crumple if a robot falls on it right? Plus why the 80-20?

I do like the triangular and circular cutouts but it seems like too much was taken out.

Is there an arm?

How much does it weigh?

Very interesting.

Their triangular pattern is very strong. Even with pocketing, the pattern plus the fact that it is quarter-inch 6061 allows their frame to be very rigid and strong. It will not "crumple."

[J_Beth]

Originally Posted by corpralchee

Why did you CNC so much? I only ask because to me it would make more sense to build a separate upper frame instead of extending the CNC so high up.

well, wouldn't it make more sense to make it out of one part instead of having multiple parts that could break, and have to be made with close enough tolerances to fit together.

[mjazzka]

Originally Posted by J_Beth

well, wouldn't it make more sense to make it out of one part instead of having multiple parts that could break, and have to be made with close enough tolerances to fit together.

In SOME things that is true, but a whole robot? If this frame got hit hard (which it will), there is a good chance that it would bend. You cant replace a bent part of a robot that is one giant piece. Unless you have infinite quantities of those plates! And besides, building the robot with good ol' nuts and bolts is fun!

[J_Beth]

Originally Posted by mjazzka

In SOME things that is true, but a whole robot? If this frame got hit hard (which it will), there is a good chance that it would bend. You cant replace a bent part of a robot that is one giant piece. Unless you have infinite quantities of those plates! And besides, building the robot with good ol' nuts and bolts is fun!

Well, having been apart of this team for several years, we have never had a problem with getting our robot bent. And yes we have abused them, a lot! We are very proud of our plates, and they were completely designed by students to have low weight, but still retain their strength. We have the front and back plates made out of 3/8 aluminum, and the sides are 1/4 inch with braces that connect the two sets. So, there are also no shortage of good ol' nuts and bolts on this robot, so you don't have to worry about that.

[mjazzka]

Originally Posted by J_Beth

Well, having been apart of this team for several years, we have never had a problem with getting our robot bent. And yes we have abused them, a lot! We are very proud of our plates, and they were completely designed by students to have low weight, but still retain their strength. We have the front and back plates made out of 3/8 aluminum, and the sides are 1/4 inch with braces that connect the two sets. So, there are also no shortage of good ol' nuts and bolts on this robot, so you don't have to worry about that.

Ah, well it sounds like you have a plan! 3/8 should work lol...If you say so, I'm sure it will be just fine! And about the wheels, are the middle four just for going over bumps? We never got clarified i don't think...

[Akash Rastogi]

Originally Posted by mjazzka

Ah, well it sounds like you have a plan! 3/8 should work lol...If you say so, I'm sure it will be just fine! And about the wheels, are the middle four just for going over bumps? We never got clarified i don't think...

Actually, it is not just b/c they say so, it is because they are good at engineering. Read this again.

Originally Posted by Akash Rastogi

Their triangular pattern is very strong. Even with pocketing, the pattern plus the fact that it is quarter-inch 6061 allows their frame to be very rigid and strong. It will not "crumple."

Condescending tones don't sound that great when discussing teams' designs by the way.