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Unread 06-02-2017, 09:15
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AKA: Pinecone
FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks)
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Join Date: Dec 2008
Rookie Year: 2006
Location: Glastonbury, CT
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Re: pic: Titanium Tomahawks 2170 Teaser

Quote:
Originally Posted by D_Price View Post
Looking good! Good luck this year. Only question: Are you worried about being too top heavy when moving throughout the playing the field and suddenly stopping? Just wondering.
I'm a little worried, but not too much. There's maybe five pounds total for that mechanism at the top of the robot, and then there are the rollers (what are they for, why are there two of them?), but otherwise almost all of the robot's mechanisms, motors, etc. are pretty low to the ground. The robot will pretty clearly come in underweight, allowing for ballast to be placed in the drivetrain near the end of build season.

Quote:
Originally Posted by dodar View Post
Seem some 2009*shudder* inspiration in this robot.
Quote:
Originally Posted by Billfred View Post
Best I can tell, 2009 is The Game You Should Be Cribbing Notes Off Of.

Personally, I'm curious about how that ramp is getting raised and lowered. I'm liking the concept though--this is borderline cheesecake-able to help a team operate at a higher level.
I agree that this game is very similar to 2009 in terms of how fuel should be handled by any team.

Without giving everything away, this robot's fuel manipulation prioritizes volume over scoring directly. At lower levels of play, this robot can cycle gears and hang, with some low goal action whenever the robot gets the chance to score a point or two. At higher levels, this robot could grow into a great assisting robot, helping top tier shooters with fuel acquisition.

Quote:
Originally Posted by 1493kd View Post
This is very similiar to our design. We are using pnuematics to raise our floor(very slowly) and close off the opening for the space that we intake fuel from the floor.
Pneumatics would definitely be an option for powering the elevator that would be robust and repeatable. However, this team doesn't have any other pneumatic needs on the robot, and the team has a strong software group as well as a history with chain driven single stage elevators (2015). So a smaller, lighter version of the 2015 elevator was an obvious choice.

The floor raises and lowers primarily because it nearly doubles the robot's ball capacity over a more conventional belt-driven ball loader thing. The floor also needs to be at a few different heights for the various outtake functions the robot can do.

Quote:
Originally Posted by Sperkowsky View Post
I'd work on some weight down low if you can. If you accelerate quickly and then stop suddenly this robot is on its side.
Quote:
Originally Posted by Sperkowsky View Post
I truly apologize for giving my advice. Next time I'll make sure to build an identical robot and do some testing before giving anyone a tip.
I think the reason this rubbed people the wrong way was not attempting to point out an issue, but the tone of the message, specifically how absolutely certain you are of the issue. The way it's phrased gives off the impression that you're certain the team hadn't thought of this issue or planned anything to deal with it.

Contrast it to the message posted directly above you, which is saying exactly the same thing but in a much nicer tone. By phrasing the concern as a question, it invites the team to respond with their plans to lower the CG of the robot. If the team truly didn't plan for this, they get the information needed to know it's an issue, and if the team did plan for this, they're able to respond with their plans for doing so.
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