Official Rebound Rumble Thread

[DMetalKong]

Originally Posted by Bgrill

With the 14 inch extension, which hoop could you drop a ball into?

The fender is 38-3/4 in deep. Add on 3 in of bumpers in the way. The hoops have an ID of 18 in. The hoops are 6 in away from the backboard, and the backboard is 1/2 in thick. Factor in a 14 in reach and you get:

38-3/4 + 3 - 18 - 6 - 1/2 - 14 = 3-1/4 in gap between the rim and the edge of the fender.

This is reasonably close enough to drop ball into the hoop, as long as the robot is high enough to reach the hoop.

[danderson]

For "Dunking":

I did the math with a current team member. What we figured out about the 2 point hoops:
-From the front of the fender to edge of the hoop is 14.75 inches
-From the side of the fender to the hoop is 14.625 inches
-From the corner of the fender to the hoop is 24 inches
-From the center of the front of the fender to the hoop is 27.25 inches (this is the worst case scenario)

Add in the 14 inch extension and you are pretty close to the basket. A bump (or even a ramp a foot or so up) would be enough to get it into the basket from pretty much anywhere.

Fun fact: even with the 14'' extension, you still can't touch the hoops.

[JOEL340]

can the opposing robots go into your own lane to collect basketballs and how many in-bounders are able to return the basketballs.

[Ninja_Bait]

Robots can go into opposing alliance lanes, but you risk penalty by doing so. (g28 I think)

[JOEL340]

what about the in-bounders how many are there.

[DonRotolo]

Originally Posted by adam see binder

could we have a either pneumatic or driven rod system on one or both sides that lower and contact the floor to steady the robot?

I have found no rule against it, other than making sure what contacts the floor complies with <R06>

Originally Posted by Trez

I wonder if we could program the gyroscope to auto balance the robot.

Yes, of course you can. You might find it easier to use the acceleration sensor though. The gyro is for measuring rotational movement.

Originally Posted by Koko Ed

The Key has that 2005 Danger Zone element to it. No matter who initiates the contact the defensive bot get the foul. Teams need to think carefully about defending that area, if at all.

This is probably the biggest Ah-Ha! in the game, week one there will be tons of these Fouls being called, until teams learn that the Zone is big and defense takes the hit.

[cosmicexplorer]

Does all of the Robot have to be supported on the Bridge for it to count as "balanced?" In the Arena pdf, it says "A Bridge will count as Balanced if it is within 5° of horizontal," nothing else. However, in [G41] of the Game pdf, it says

If the
Coopertition Bridge is not balanced, but a Robot from each Alliance is fully supported by the
Coopertition Bridge, each Alliance will earn 1 Coopertition Point.

It says "fully supported by the Coopertition bridge," but "fully supported," or anything like it, is not mentioned anywhere else in the manual. Could we support the weight on the floor, as well as the Bridge, as long as it's <5 degrees?

[DonRotolo]

Originally Posted by cosmicexplorer

It says "fully supported by the Coopertition bridge," but "fully supported," or anything like it, is not mentioned anywhere else in the manual. Could we support the weight on the floor, as well as the Bridge, as long as it's <5 degrees?

If partly supported by the floor, does that sound like "fully supported by the bridge" to you?

[Bgrill]

Thank you for this info. i will make sure to bring it up with my team.

Originally Posted by danderson

For "Dunking":

I did the math with a current team member. What we figured out about the 2 point hoops:
-From the front of the fender to edge of the hoop is 14.75 inches
-From the side of the fender to the hoop is 14.625 inches
-From the corner of the fender to the hoop is 24 inches
-From the center of the fender to the hoop is 27.25 inches (this is the worst case scenario)

Add in the 14 inch extension and you are pretty close to the basket. A bump (or even a ramp a foot or so up) would be enough to get it into the basket from pretty much anywhere.

Fun fact: even with the 14'' extension, you still can't touch the hoops.

[Koko Ed]

Originally Posted by DonRotolo

I

This is probably the biggest Ah-Ha! in the game, week one there will be tons of these Fouls being called, until teams learn that the Zone is big and defense takes the hit.

There's always these every year. Last year teams did not think playing madcap defense in the opponents scoring zone would prove so costly but I witnessed firsthand a team lose a regional over a red card during a match they easily won.
Check yourself before you wreck yourself, kids. Penalties still matter just as much as points do.

[JOEL340]

how many mechanisms can you have at a time on your robot.

[cosmicexplorer]

Originally Posted by DonRotolo

If partly supported by the floor, does that sound like "fully supported by the bridge" to you?

Thank you for the kind response. It's mentioned in the game section concerning the Coopertition bridge, not any bridge at all, and only in that section, while "balanced" is defined only as being 5 degrees or less from the horizontal. There's certainly reason for doubt.

[danderson]

Originally Posted by JOEL340

how many mechanisms can you have at a time on your robot.

However many you can fit without the rules and size constraints. Only one can extend the 14'' at any given time, all others must stay in standard limits.

[Blackphantom91]

Im interested to see how many fouls there are also kc is a week one so we will see. This whole ramp thing has been overlooked also and is huge in elim and qual especially the coop, may teams I feel are going to over look it unfortunately.

[GaryVoshol]

Originally Posted by danderson

For "Dunking":

I did the math with a current team member. What we figured out about the 2 point hoops:
-From the front of the fender to edge of the hoop is 14.75 inches
-From the side of the fender to the hoop is 14.625 inches
-From the corner of the fender to the hoop is 24 inches
-From the center of the front of the fender to the hoop is 27.25 inches (this is the worst case scenario)

Add in the 14 inch extension and you are pretty close to the basket. A bump (or even a ramp a foot or so up) would be enough to get it into the basket from pretty much anywhere.

Fun fact: even with the 14'' extension, you still can't touch the hoops.

You forgot the Bumpers. The maximum 14" extension is from your Frame Perimeter, which is inside the Bumpers. Subtract 3-1/4 inches (2-1/2" noodle, 3/4" plywood) from your calculations, and you'll be even farther away from touching a hoop.