I figure that in the first 15 seconds, most teams will blitz for the middle stack…and speed will be a great factor in doing so…
So how fast do you think \ anticipate being able to get to make an attack on the center stack?
We are estimating that within the first 5 seconds, we will have knocked down most of the boxes on top, but I am wondering how fast other people might be able to get to it.
I mean, it takes our robot a few seconds to fire it’s stablization harpoon into the rafters, warm up it’s jump jets, and engage it’s shock cannon…
With our teams transmittion blueprints, they were estimating somewhere around 16 feet per second. I’m sure that some modifications will be made to change that along with certion factors.
we origonally wanted a 15ft/sec tranny… but then when you look at all the power you lose, and that no robot would really be able to go that fast and have someone contol it, and considering that the robot needs to make a 4’ turn to get to the ramp, anything fast will just fall over if your tall. the sensors are also limited to how fast you can go, you would have to be dead reckoning and then if anything goes wrong the slightest bit you miss and take more time. getting up there fast is going to be harder than most teams think
Well our robot is going to be around 7 ft/sec, but take into consideration that it is not a straight dash, getting to the boxes require turning and going at a speed much lower than the robot’s potential speed =(
*Originally posted by HolyMasamune *
**Well our robot is going to be around 7 ft/sec, but take into consideration that it is not a straight dash, getting to the boxes require turning and going at a speed much lower than the robot’s potential speed =( **
Not really… we are doing it in a way that requires very little turning… I’ll let you think of how.
We are shooting for 6-6.5 F/PS. We were originally thinking 8-9 but we realized that if got into a pushing match, the motors would stall, breakers would trip etc.
Theoretically 16ft/s would work well but think about how long it would take you to accelerate. When they ran the numbers for our tranny, I think they dropped the top speed in order to accelerate faster.
Personaly I feel that competitive teams will hit the wall in <7 seconds. On the other hand an arm or any “long shot” device could knock it down in <5.
I see competitive teams hitting the wall in 3-5 sec. Oh yeah, ever see kingman last year? hit the goals in 1-2 sec @ like 18 fps. They had incredible acceleration. Biggest disadvantage I see is probably not being able to turn due to friction at such high speeds. We went at around 13-14 fps last year, and turning at full speed was impossible.
With a front dually, rear swivel caster design, we aren’t “Trapt” with the confines of not being able to turn on a dime, yet we achieve an amazing 16.5 fps on level ground, and should achieve over 13 fps over the ramp. We’re light, and heavy on traction. :ahh: Pun!
*Originally posted by D. Gregory *
**We are shooting for 6-6.5 F/PS. We were originally thinking 8-9 but we realized that if got into a pushing match, the motors would stall, breakers would trip etc. **
It’s all on how many motors you use and how you gear it…
Pair up the CIM and Drill motors…use reduction from the CIMs to the drill running on high, gets some good speed…with quite a bit of torque…
There are similar match-ups, this is just one I know, fairly easy to do too.
its amazing how many different ways there are to knock down the boxes that dont involve wheels… of course this is a creative and most difficult task to pull off… im guessing most teams will have speed and depend on it for there control of the center stacks… but i wanna see the teams that will use arms the center stack…
of course no team wants to tip there hand and show the rest of the world wuts up there selves but i really wanna know
Pushing
Moving walls
Large Over Extending Arms
Time travel:p
wut other ways of getting the stack have teams developed?
I"ve convinced my team to make a launcher, so we"re planning on knocking over the stack with a flying box about the time other teams are headed up the ramp. From what has happened to humans having stacks fall on them, it seems that whichever alliance gets the stacks knocked onto them will be at a great disadvantage not only because of the boxes they have to move into their scoring zone, but also because of the damage ad obstacles the boxes will present to them.
*Originally posted by Cory *
**Not really… we are doing it in a way that requires very little turning… I’ll let you think of how.
Cory **
OMNI DRIVE
???
Technically with omni drive you switch directions, you don’t turn
Oh, I’m not sure if anyone has worked this out yet, but anyone going over 16ft/s may want to consider building shocks into their robot and you probably don’t have to worry about traction on the slick stuff at the top of the ramp, as you won’t be touching it.
Just remember, someone has to program the autonomous code. Unless you are planning on waiting for the 15 seconds to be over, then you will probably be out of luck.
I think our robot could get to the boxes in about 2 to 3 seconds max. Our robot can move about 16.0-17.5 ft/s depending on the surface. I’m most likely underestimating.
