Chief Delphi - Is your robot defense ready?

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - Is your robot defense ready? (http://www.chiefdelphi.com/forums/showthread.php?t=127247)

IVAN	26-02-2014 22:24

Re: Is your robot defense ready?

I expect to see alot of hit and run D

Wayne TenBrink

26-02-2014 22:37

Re: Is your robot defense ready?

With all the overhanging appendages and high speeds, I hope the referees strictly enforce the "contact inside the bumper zone" rule. Breaking your own bot when you run into somebody is one thing. Trashing the innards of the bot you hit is quite another.

mwmac

26-02-2014 22:50

Re: Is your robot defense ready?

Quote:

Originally Posted by Bob Steele (Post 1350204)

I thought there would be only one human player in the alliance station. Two are stationed up by the truss in those positions. I also note that human players cannot pass the ball between each other from station to station. Now... that was assuming human players were dispersed on the field and not all behind the alliance area.

Anyone else want to chime in on this? Can an alliance use all of its alliance human players in the drive station area? Would you want to?

G8
Each TEAM member must be in designated areas:

COACHES and DRIVERS must be in the ALLIANCE STATION and behind the STARTING LINE.
HUMAN PLAYERS must be either in one of their HUMAN PLAYER AREAS or in the ALLIANCE STATION and behind the STARTING LINE.

G38
HUMAN PLAYERS may not pass the BALL to a HUMAN PLAYER in another HUMAN PLAYER AREA (passing the BALL within an ALLIANCE STATION or HUMAN PLAYER AREA is permitted).

IMO, an alliance that chooses to leave one human player area empty is taking a large risk especially if one of their balls leaves the field on that side as it would introduce a longer delay in the ball being returned to the nearest human player.

Max Boord

26-02-2014 23:54

Re: Is your robot defense ready?

Our team takes a different approach to dealing with defense:
1. 20 fps
2. Mecanum
3. 3/4 inch ground clearance
4. 8 square inches of tread jammed into the ground with pnumatics.(anti-push feet)
5. A 6 cim powered arm called a "shooter" that defends the entire inside of our chassis. If a mechanism enters our chassis that mechanism may exit the field at high speed. (Or at least be persuaded into an upright and locked position).

cmwilson13

27-02-2014 00:01

Re: Is your robot defense ready?

Quote:

Originally Posted by Max Boord (Post 1350368)

Our team takes a different approach to dealing with defense:
1. 20 fps
2. Mecanum

1 and 2 are exclusionary from my experience you may be geared for that but i highly doubt you even approach that speed with Mecanum.
if so id love to see a video

pfreivald

27-02-2014 00:08

Re: Is your robot defense ready?

I believe the winning alliances will have robots wherein the ball rarely if ever touches the ground.

Otherwise, defense will likely school you if played well.

JamesCH95

27-02-2014 08:41

Re: Is your robot defense ready?

Quote:

Originally Posted by Max Boord (Post 1350368)

I second seeing a video of a mecanum robot geared for 20ft/s. Unless you have a crazy drive motor setup you're going to have a hell of a time getting to 20ft/s

RonnieS

27-02-2014 08:44

Re: Is your robot defense ready?

How many people actually have to stop and/or lower intake to shoot? I guess when we designed ours to stay in the frame the whole time I didn't realize how big of a problem it would be for people if not kept inside! Oh snap::safety::

JamesCH95

27-02-2014 08:51

Re: Is your robot defense ready?

Quote:

Originally Posted by Ronnie314 (Post 1350434)

I would guess 1/4-1/3 of reveal videos show teams that deploy their intake, or some other mechanism, before they shoot. That's the impression that I get anyway.

Tom Line

27-02-2014 08:52

Re: Is your robot defense ready?

Quote:

Originally Posted by Wayne TenBrink (Post 1350328)

I'm concerned about that as well. Large hammers swinging outside the bumper perimeter, intakes outside the bumper perimeter. I also hope that the refs are keeping a VERY close eye on intentional damage. Playing good solid D does not equal intentionally taking full speed runs at other robots and slamming into them.

pfreivald

27-02-2014 10:20

Re: Is your robot defense ready?

Quote:

Originally Posted by Tom Line (Post 1350438)

Playing good solid D does not equal intentionally taking full speed runs at other robots and slamming into them.

It can, though--and as long as the contact is all inside the bumper zone, it's entirely legal.

JamesCH95

27-02-2014 10:26

Re: Is your robot defense ready?

An interesting hypothetical situation would be: a defending robot rams an offensive robot and the defensive robot skewers itself, and become disabled, on a mechanism deployed by the offensive robot. Is that a foul on the offensive robot for contact inside the bumper zone? Is it a foul on a defensive robot for trying to incur a foul? Is it nothing because the defensive robot got what it was asking for by charging a deployed mechanism?

E Dawg

27-02-2014 10:57

Re: Is your robot defense ready?

I fear for the structural integrity of anything that extends outside of the standard frame perimeter. That includes the tall blocking mechanisms on goalie bots.

Andrew Schreiber

27-02-2014 11:02

Re: Is your robot defense ready?

Quote:

Originally Posted by JamesCH95 (Post 1350436)

I would guess 1/4-1/3 of reveal videos show teams that deploy their intake, or some other mechanism, before they shoot. That's the impression that I get anyway.

Wait, teams showed everything off in their reveal videos? :rolleyes:

JamesCH95

27-02-2014 11:13

Re: Is your robot defense ready?

Quote:

Originally Posted by Andrew Schreiber (Post 1350484)

Wait, teams showed everything off in their reveal videos? :rolleyes:

Some fairly obviously needed to get their collector out of the way.

Smart-arse :p

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