random alum thoughts

Discuss things about robotics that aren't particular to FRC or FTC.

random alum thoughts

Postby Nancy » February 27th, 2011, 11:25 pm

“We know everyone may not get a chance to work but don’t be discouraged. Come participate by helping the team with moving equipment, learning the game rules, and scouting.”

(replying off the syndicate thread) (I lost my link to the wiki, so I'm going to assume this is an okay place to post)

Whoa, there is also a lot more to learn, in case anyone is still bored (please don't let this distract for crazy FRC prep!). I'm finally getting around to building my own robot (after 6 years, haha) and there is So Much Stuff to Learn. So in case any one else is in my position...

See this 30 minute video snapshot of my professor trying / building a stair-climbing robot (it's actually entertaining)* :)
http://techtv.mit.edu/videos/10523-what ... an-example "A video of a person designing a machine from start to finish, warts and all."
* I mean, it was like MOVIE when you expected a lecture. Yes, college kids still get super excited when we get to watch movies in class! ** and not write papers on them!

General reference:
http://www.societyofrobots.com/robot_tutorial.shtml
http://makeprojects.com/Area/Robotics
?? Somehow I entirely missed/forgot how to attach things to servos. Well, outside of Vex's snap-on clutch thingy.

Most of our course materials are openly accessible. http://stellar.mit.edu/S/course/2/sp11/ ... rials.html Of course, it's this giant hairball of links and we're only 1/3 into the semester, but :/ I can't do anything about it. (p.s. we use solidworks so the CAD tutorials are SW)
(for previous years, see http://stellar.mit.edu/courseguide/course/2/sp11/2.007/index.html)

Physics [aka scary math! but not actually anything you can't do. see http://www.societyofrobots.com/mechanics_statics.shtml if you want a more friendly page of physics]
For understanding motors (motor curves? max power? huhh? I just want to know if this motor will do the job), I especially recommend skimming: http://stellar.mit.edu/S/course/2/sp11/ ... ors_v1.pdf
Also, for understanding drivetrains, see "BTW, if you want to know how to figure out if your robot will turn, read this." http://www.chiefdelphi.com/media/papers/1443

Not Applicable
Also, not so much immediately applicable (at least for the 80-20 style), but see:
How To Build Your Robot Really Really Fast. http://www.etotheipiplusone.net/stuff/htbyrrrf_03122010.pdf (First time I ever thought of mechanical modularity)

From the same person, http://www.etotheipiplusone.net/stuff/caliper_abuse.pdf .

Do we have machine shop access nowadays? I recently came across Build Your Own Metal Working Shop From Scrap which is actually just awesome. Using just scrap Aluminum, some charcoal, some sand, and other easy materials. See: http://en.wikipedia.org/wiki/David_J._Gingery . See instructables and http://www.backyardmetalcasting.com/index.html.

More entertainingly, read blogs with lots of details about the build process. For instance, I follow my crazy upperclassmen:
http://www.etotheipiplusone.net
http://scolton.blogspot.com/ (I like this post, where he reflects on FRC: http://scolton.blogspot.com/2011/02/200 ... wdbot.html)
Yea, just thinking about exactly why each part is there, and how it was put together... o.o I totally agree that staring at a robot for 30 minutes is the way to go.

Well, I suppose one thing is that during FRC I mostly learned how to work with 80-20 and the kit parts, and actually having to CAD and design from scratch is a steep learning curve for me right now. Thankfully I have lots of people to ask for help though! And I'm more ambitious than a lot of my classmates, and I realize that everything will take about 4x as long as I estimate it will o.o

===

also, yes, stalk alumni now. So you don't have to type up 1000 pages worth of membership forms in a few years. x_X merrr
Mediawiki has security features (view access), I think? Don't know how secure it is actually.

==
I am going back to work now. Waugh. why is there no time ever?
Also, Hi, for those people who I never met! :D it's hard to wrap my head around time passing and things changing.
Nancy
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Re: random alum thoughts

Postby Paul » February 27th, 2011, 11:33 pm

Hello, Ms. Nancy Ouyang! Thank you for all the very nifty links that you've shared with us - they're really interesting to read!
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Re: random alum thoughts

Postby Sunny » February 28th, 2011, 1:19 am

Damn Nancy, where have these resources been all my life?

Just out of curiosity, what's your Major?
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