Chief Delphi
Page 2 of 3 < 1 2 3 >
Show 100 post(s) from this thread on one page

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Rules/Strategy (http://www.chiefdelphi.com/forums/forumdisplay.php?f=6)
-   -   HELP!!! question about inspection (http://www.chiefdelphi.com/forums/showthread.php?t=63638)

schmidtz 10-02-2008 12:20
Re: HELP!!! question about inspection
 
118 pounds with bumpers but without the battery:eek:

my team still wants to add an arm to the front

yes... im worrying

Vikesrock 10-02-2008 12:27
Re: HELP!!! question about inspection
 
If your arm weighs within 2 lbs of what your bumpers do you'll be fine on weight. Bumpers and the 12V battery both don't count towards weight.

bduddy 10-02-2008 15:38
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Rosiebotboss (Post 695777)
Just a quick look from me and the first thing I noticed is the angle of the front and rear panels. From the floor to 8" up, the robot and frame shall be vertical within 10 degrees. (Not including bumpers.) Are they within 10 degrees?
Not necessarily; only parts of the robot that may contact other robots are subject to that restriction. Bumpers should make that body legal.

EricH 10-02-2008 15:42
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by bduddy (Post 695934)
Not necessarily; only parts of the robot that may contact other robots are subject to that restriction. Bumpers should make that body legal.
That's not what the rule says.
Quote:
<R19> "Wedge” ROBOTS are not be permitted. ROBOTS shall be designed so that interaction with opposing ROBOTS results in pushing rather than tipping or lifting. Neither offensive nor defensive wedges are allowed. All parts of a ROBOT between 0 and 8.5 inches from the ground (the top of the BUMPER ZONE) that are used to push against or interact with an opposing ROBOT must be within 10 degrees of vertical. Devices deployed outside the ROBOT footprint should be designed to avoid wedging. If a mechanism or an appendage (e.g. a harvester for retrieving GAME PIECES) becomes a wedge that interferes with other ROBOTS, penalties, disabling, or disqualification can occur depending on the severity of the infraction.
(emphasis mine) The bumpers are part of the robot, right? They are used to push against or interact with other robots, right?

Vikesrock 10-02-2008 15:47
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by EricH (Post 695937)
That's not what the rule says. (emphasis mine) The bumpers are part of the robot, right? They are used to push against or interact with other robots, right?
Right. So bumpers that are within 10 degrees of vertical attached to that robot frame such that none of the angled frame sections would be used to push against or interact with another robot should make the robot conform to the rules.

EricH 10-02-2008 15:49
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Vikesrock (Post 695941)
Right. So bumpers that are within 10 degrees of vertical attached to that robot frame such that none of the angled frame sections would be used to push against or interact with another robot should make the robot conform to the rules.
Of course, the bumpers and lower frame are vertical...the only two places where there might be an issue are on the front and back.

Russ Beavis 10-02-2008 15:58
Re: HELP!!! question about inspection
 
Don't forget about the holder for the bicycle flag.

Russ Beavis
Chief Inspector

GaryVoshol 10-02-2008 19:09
Re: HELP!!! question about inspection
 
The bumpers look low, too. They must be completely in the bumper zone, 2.5 to 8.5 inches from the ground. These look lower than 2.5".

Rosiebotboss 10-02-2008 20:08
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by EricH (Post 695942)
Of course, the bumpers and lower frame are vertical...the only two places where there might be an issue are on the front and back.
The bumper rule also states that only 2/3 of the robot must be covered by bumper. 3 sides of a robots equals 3/4 of the perimeter. Now, 3/4 is greater than 2/3. Who's to say that this team is not going out for a match with the front bumper off? They meet the 2/3 bumper rule, right? I would have to require that they compete with the FRONT bumper ON AT ALL TIMES. And the Head Referee would be notified.

This discussion can be avoided, of course, if the team can PROVE to the Inspector that they are less than 10 degrees from vertical. Bring a protractor and square to the Regional.

Fab.Master 10-02-2008 20:35
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Rosiebotboss (Post 696145)
3 sides of a robots equals 3/4 of the perimeter.
that formula does not work on rectangular bots, only square:D

EricH 10-02-2008 20:42
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Fab.Master (Post 696160)
that formula does not work on rectangular bots, only square:D
Take an end off a rectangular robot, and you have more than 3/4 of the perimeter. Just don't take both ends.

(Oh, and if it works on square robots, it works on rectangular robots--a square is a particular type of rectangle:D.)

Rosiebotboss 10-02-2008 20:46
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Fab.Master (Post 696160)
that formula does not work on rectangular bots, only square:D
38+38+28+28=132
(132/4)*3=99
(132/3)*2=88

On a FIRST robot no matter which way you drive it, 3 sides covered with bumper is greater than 2/3 of the available linear inches. (Assuming that the robot is 38x28 and the bumper is the full length of its respective side)

schmidtz 10-02-2008 23:28
Re: HELP!!! question about inspection
 
well it looks like this is going to be a long week....

but we do plan to always have the front bumpers on so it looks like we should be OK

the bumpers only look lower than 2.5" because of the angle of the pictures, they really arent that low

bduddy 10-02-2008 23:41
Re: HELP!!! question about inspection
 
Quote:
Originally Posted by Vikesrock (Post 695941)
Right. So bumpers that are within 10 degrees of vertical attached to that robot frame such that none of the angled frame sections would be used to push against or interact with another robot should make the robot conform to the rules.
Yes, that's exactly what I meant. My team is actually planning to use a similar system, so good luck to you :)

Jimmy Nichols 11-02-2008 07:02
Re: HELP!!! question about inspection
 
What is the height from the floor to the bottom of your bumpers. They look too low to me. Bumpers need to be mounted between 2.5 and 8.5 inches.


All times are GMT -5. The time now is 01:38.
Page 2 of 3 < 1 2 3 >
Show 100 post(s) from this thread on one page

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