Chief Delphi - Intake Size

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- - Intake Size (http://www.chiefdelphi.com/forums/showthread.php?t=99799)

lemiant

11-01-2012 01:44

Intake Size

I just quickly did this back of napkin calculation:

Quote:

For long-orientation robot:
Front length = 28"
Bumper per side = 8"
Max intake width = Front - 2*Bumper
=28-16
=12

1. Did I miss something.
and
2. How are you going to get a decent intake in just 12 inches. (The wide orientation at 22" is leaps and bounds better, if not spectacularly large).

Ankit S.

11-01-2012 01:48

Re: Intake Size

I believe your calculations are correct, however I would like to remind you of one thing: you can only hold control 3 balls at a time. With a smaller intake, you would ensure that you obtain one ball at a time, thus reducing the risk of getting penalties. That was one of the reasons my team decided to go long oriented.

n1ckd2012

11-01-2012 02:27

Re: Intake Size

But doesn't the bumper width count?

(28+ 2* ~4)
-16

= 20

lemiant

11-01-2012 02:36

Re: Intake Size

Quote:

Originally Posted by n1ckd2012 (Post 1102366)

But doesn't the bumper width count?

(28+ 2* ~4)
-16

= 20

I could be wrong on this, but i do not believe that of the corners of the bumper count towards [R27]:

Quote:

Robots are required to use Bumpers to protect all exterior vertices of the Frame Perimeter. For adequate protection, at least 8 in. of Bumper must be placed on each side of each exterior vertex

Does someone else have a thought on this, or would it be good to Q & A it?

Also, bumpers are 3" thick, not 4".

n1ckd2012

11-01-2012 02:40

Re: Intake Size

Quote:

Originally Posted by lemiant (Post 1102369)

Also, bumpers are 3" thick, not 4".

Too much CAD addles the memory :D

waialua359

11-01-2012 02:50

Re: Intake Size

Quote:

Originally Posted by lemiant (Post 1102369)

I could be wrong on this, but i do not believe that of the corners of the bumper count towards [R27]:

Does someone else have a thought on this, or would it be good to Q & A it?

Also, bumpers are 3" thick, not 4".

Based on what you quoted its not clear which vertex.
I could assume either the bumpers being 8in. in length or from the frame perimeter vertex moving inward.

If its just 8 in. of bumper length in the front, that's a huge difference from 12 in. opening to 18 in.

Ninja_Bait

11-01-2012 06:37

Re: Intake Size

You mean 12 to 20, right?

It is (with 98% certainty) 8" of bumper on each side, which can be divided into 4" on the left and 4" on the right.

Hallry

11-01-2012 06:51

Re: Intake Size

Quote:

Originally Posted by Ninja_Bait (Post 1102417)

You mean 12 to 20, right?

It is (with 98% certainty) 8" of bumper on each side, which can be divided into 4" on the left and 4" on the right.

No, 12 is the largest if your doing a narrow-side-front robot. From Section 4.1.6., Bumper Rules, in the 'Robot' section of the manual:

Quote:

For adequate protection, at least 8 in. of Bumper must be placed on each side of each exterior vertex

Emphasis mine. ::rtm::

pfreivald

11-01-2012 06:55

Re: Intake Size

If they allowed you to extend a mechanism outside your robot, say, up to 14", you could partially circumvent this problem... :D

Ninja_Bait

11-01-2012 07:02

Re: Intake Size

Quote:

Originally Posted by Hallry (Post 1102420)

No, 12 is the largest if your doing a narrow-side-front robot. From Section 4.1.6., Bumper Rules, in the 'Robot' section of the manual:

Emphasis mine. ::rtm::

Oh, shoot. I was told by some of my "rule-expert" team members that we could build 4"X4" corner bumpers. /facepalm (Curse you, 2%!)

Does this mean that octagonal robots with sides less than 8" and circular robots are illegal this year?

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