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Unread 01-02-2017, 14:13
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pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Unread 01-02-2017, 14:14
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

That arm on the front stays inside the maximum robot volume, right? It looks like you're going with the tall dimension set, and it also looks like lowering that arm is against the rules.
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Unread 01-02-2017, 14:19
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by flemdogmillion View Post
That arm on the front stays inside the maximum robot volume, right? It looks like you're going with the tall dimension set, and it also looks like lowering that arm is against the rules.
That looks like the short dimension set to me.
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Unread 01-02-2017, 14:22
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by flemdogmillion View Post
lowering that arm is against the rules.
Agreed

Teams need to make sure they read all rules pertaining to robot size carefully. I would hate to see a robot this well designed get to a competition and then not pass inspection.
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Unread 01-02-2017, 14:23
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by flemdogmillion View Post
That arm on the front stays inside the maximum robot volume, right? It looks like you're going with the tall dimension set, and it also looks like lowering that arm is against the rules.
I'm sure they know what they're doing and have read the rules - they're a long standing veteran team who's built high-quality robots for years, who publicly posted a full cad of their robot in week 4.

You don't think it's more likely that you have an inaccurate perception of the robot's dimensions?

It's not against the rules to lower the arm as long as the robot still fits within the volume with the arm lowered (i.e. their chassis is shorter to compensate). This is clearly the case here. If the arm doesn't go past the bumpers then it's legal for it to be lowered even at max dimensions.
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Unread 01-02-2017, 14:23
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

Quote:
Originally Posted by flemdogmillion View Post
That arm on the front stays inside the maximum robot volume, right? It looks like you're going with the tall dimension set, and it also looks like lowering that arm is against the rules.
It's Spectrum, I'm sure they're in the volume. These guys do their due diligence. You can lower an arm outside of your bumpers as long as it all stays within the appropriate robot volume.

Looking slick Allen!
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Unread 01-02-2017, 14:28
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by flemdogmillion View Post
That arm on the front stays inside the maximum robot volume, right? It looks like you're going with the tall dimension set, and it also looks like lowering that arm is against the rules.
notmattlythgoe is correct, we are using the short configuration. We are 29x29 so we have room for a 4" extension off either side. The gear collector also fits within our bumper cutout.

See these photos for reference. The pic with the grey gear is current, the pic with the yellow gear is from an older revision, but demonstrates how the intake fits inside our front cutout.
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Unread 01-02-2017, 14:31
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

The robot frame is a ~29in square making our dimensions with bumpers about 36" square. That gives us 4 inchs of room to extend past the bumpers. The mecanum intake and the gear intake both come close to the full extension limit but can't possibly break it.

And of course we are short. Top of the robot is 23.8in I believe but the student that's doing most of the shooter CAD can tell you for sure that we are under.
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Unread 01-02-2017, 14:34
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by AllenGregoryIV View Post
Top of the robot is 23.8in I believe but the student that's doing most of the shooter CAD can tell you for sure that we are under.
By my best memory we are ~23.97. I will update this post later in the evening if I'm way off.
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Unread 01-02-2017, 14:38
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Unread 01-02-2017, 14:42
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

Allen,

Really cool bot, love what your team is doing with the open build/blog. Seems like a great learning experience for your team.

Whats the process for scoring the gear once in the gear holder?

Great work as always,

-Mike
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Unread 01-02-2017, 14:42
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

Very nice. What is the upper appendage intended for?
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Unread 01-02-2017, 14:45
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by Michael Corsetto View Post
Allen,

Really cool bot, love what your team is doing with the open build/blog. Seems like a great learning experience for your team.

Whats the process for scoring the gear once in the gear holder?

Great work as always,

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They talk about some really good details of the gear intake here in the video.
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Unread 01-02-2017, 14:46
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

This makes me wonder how they'll inspect boundaries this year. Our arm is 1" within the boundary with fully-down, but comes to within 0.25" of the boundary during articulation up/down.
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Unread 01-02-2017, 14:48
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray

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Originally Posted by JesseK View Post
This makes me wonder how they'll test things this year. Our arm is 1" within the boundary with fully-down, but comes to within 0.25" of the boundary during articulation up/down.
In previous years where they had appendage requirements they made the teams extend out to their furthest point and then measured them.
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