Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Rules/Strategy (http://www.chiefdelphi.com/forums/forumdisplay.php?f=6)
-   -   Secret Sauce: Shot to Human Player (http://www.chiefdelphi.com/forums/showthread.php?t=127454)

andres_900 05-03-2014 19:25

Re: Secret Sauce: Shot to Human Player
 
The refs at the NC Regional are known for being extremely knowledgeable, so I don't think the Zebracorns have much to worry about.

M. Lillis 10-03-2014 13:20

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by nlj007 (Post 1352975)
I was ecstatic to see how effective team 900's truss shot to the human player was at the South Carolina regional was. I put together a video showcasing the shot. I truly believe this will be a very effective strategy at our next competition.

SECRET SAUCE:
http://www.youtube.com/watch?v=WjSUAmLFnwY

Sorry to revive an old thread, but what setup did you use to shoot this? (Body, lens, rig)

pandamonium 11-03-2014 23:13

Re: Secret Sauce: Shot to Human Player
 
If I was this team I would Create a hard stop alignment device just drop it and drive into the corner... Awesome design!!!

marshall 11-03-2014 23:36

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by pandamonium (Post 1357828)
If I was this team I would Create a hard stop alignment device just drop it and drive into the corner... Awesome design!!!

We talked about doing that. We have position based PID implemented on our drive train so it is actually more difficult than people think to push us. Basically, if you push against our robot then it pushes back to stay in that location.

We might yet add something to prop us in the corner but it doesn't seem to matter much from what we saw in Palmetto. A team would have to devote 2/3 of their alliance to keep us out of both corners, which kinda swings the match in our favor anyway...

Not to mention that we can always load the ball over the top of them. We are a fairly tall bot.

We nearly won Palmetto with this... we are hoping to win the NC regional.

mizscience 12-03-2014 00:46

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by bduddy (Post 1353495)
I would think that if an HP misses one or two catches, that's not a foul. If it happens much more than that, that becomes "repeatedly" and is worthy of a foul.

This. The refs have been instructed to warn teams if they repeatedly miss their shot to the HP or if they start shooting the balls haphazardly off the field, then to penalize them if they still continue these actions.

nlj007 12-03-2014 01:24

Quote:

Originally Posted by M. Lillis (Post 1356551)
Sorry to revive an old thread, but what setup did you use to shoot this? (Body, lens, rig)


I used a canon Rebel T1i with a 50mm f1.8. I handheld these shots without a strap or rig. However, I do have a homemade steadicam. I used it with my iPhone to shoot this video recently:
http://youtu.be/76lFi5nRXNc

The T1i only shoots 720p(shh don't tell anyone it's not full HD :P)

IronicDeadBird 20-03-2014 14:01

Re: Secret Sauce: Shot to Human Player
 
Pardon the necromancy but has anyone seen this done with a decent goalie bot?

marshall 20-03-2014 14:22

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by IronicDeadBird (Post 1361795)
Pardon the necromancy but has anyone seen this done with a decent goalie bot?

As in trying to block the shot or doubling up and playing goalie along with shooting?

IronicDeadBird 20-03-2014 14:34

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by marshall (Post 1361799)
As in trying to block the shot or doubling up and playing goalie along with shooting?

Doubling up. I feel like that is the only time it would be viable to camp that hard in one area.

Pi3th0n 20-03-2014 14:38

Re: Secret Sauce: Shot to Human Player
 
As far as doubling up goes, 900 has been playing hard defense whenever we aren't setting up/shooting. Pushing other robots around seems to work better than putting something in front of the high goal though, especially when smart teams decide to go low goal instead.

IronicDeadBird 20-03-2014 14:43

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by Pi3th0n (Post 1361806)
As far as doubling up goes, 900 has been playing hard defense whenever we aren't setting up/shooting. Pushing other robots around seems to work better than putting something in front of the high goal though, especially when smart teams decide to go low goal instead.

GAhfshm, hmmm....
Mixed feelings are mixed, while I feel it is a very strong strategy I just don't see how it isn't being countered hard. If you have it working though nothing wrong with that.

marshall 20-03-2014 14:50

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by IronicDeadBird (Post 1361809)
GAhfshm, hmmm....
Mixed feelings are mixed, while I feel it is a very strong strategy I just don't see how it isn't being countered hard. If you have it working though nothing wrong with that.

It's a hard strategy to counter. If you camp a robot in the corner before we get there (IE: 1024 in Palmetto) then we can drive to the other corner or just sit in front of you. If you devote two robots to camping both corners well then you don't have much offense left to play.

Ramming us continuously was half working at NC but we have a solution for that.

Your confused look is the same as ours though. What is even more perplexing to us is the lack of teams doing this same strategy at other regional events. We know that there are two or three others that can do it but aren't regularly.

Ideally, we could literally park in front of the opponent's goal and then shoot straight to the other 1 pt goal and have another robot put it in without any human players being present. It's hard to wedge us out of the corner once we are in it too.

IronicDeadBird 20-03-2014 15:06

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by marshall (Post 1361810)
It's a hard strategy to counter. If you camp a robot in the corner before we get there (IE: 1024 in Palmetto) then we can drive to the other corner or just sit in front of you. If you devote two robots to camping both corners well then you don't have much offense left to play.

Ramming us continuously was half working at NC but we have a solution for that.

Your confused look is the same as ours though. What is even more perplexing to us is the lack of teams doing this same strategy at other regional events. We know that there are two or three others that can do it but aren't regularly.

Ideally, we could literally park in front of the opponent's goal and then shoot straight to the other 1 pt goal and have another robot put it in without any human players being present. It's hard to wedge us out of the corner once we are in it too.

In the ideal situation you stated it pans out if you are the only robots out there. As soon as the opposing alliance is introduced you then are left with 1 robot playing defense against 3 robots playing offense. That means they can do a fairly safe 3 assist scoring cycle. They will have one robot that has the ball and 2 escorting I have seen very few robots run an effective defense against a 2v1.
We don't need to peel you out of the corner if being in the corner is detrimental to your team. Every opposing robot that is sitting in a corner is one less robot we need to worry about disrupting a cycle.

marshall 20-03-2014 15:39

Re: Secret Sauce: Shot to Human Player
 
Quote:

Originally Posted by IronicDeadBird (Post 1361817)
In the ideal situation you stated it pans out if you are the only robots out there. As soon as the opposing alliance is introduced you then are left with 1 robot playing defense against 3 robots playing offense. That means they can do a fairly safe 3 assist scoring cycle. They will have one robot that has the ball and 2 escorting I have seen very few robots run an effective defense against a 2v1.
We don't need to peel you out of the corner if being in the corner is detrimental to your team. Every opposing robot that is sitting in a corner is one less robot we need to worry about disrupting a cycle.

How long does a 3 assist cycle take vs a 2 assist? And don't forget about a third robot dedicated to defense. It's a fun thought exercise to armchair on CD...

We ran the math on all of this right after kickoff and came up with a strategy that has paid off for us. I'm not going to claim it is 100% effective in all cases and I know it can be disrupted.

Fact is, it won us a regional and an engineering award and we have had a blast doing it. I'll take that any day.

HannahWilson 20-03-2014 17:47

Re: Secret Sauce: Shot to Human Player
 
Congrats to team 900 on winning the Raleigh regional! I really enjoyed watching your robot launch the ball so powerfully, and your team's strategy was amazing.

I have one question: when did your team have the idea of passing the ball over the truss to the human player? Did you plan to build your robot to shoot the ball that powerfully during the build season, or did you realize that strategy would work well during the competition? (I'm assuming the former.)


All times are GMT -5. The time now is 16:12.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi