23-10-2007 14:07

FTcurtis

Re: paper: FIRST Drive Trains and Structures

I am interested in this topic for research on our next years robot but there are no files to download. Do you think there is a way that I could receive these files? Thank you for your time.

23-10-2007 14:10

Madison

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by FTcurtis I am interested in this topic for research on our next years robot but there are no files to download. Do you think there is a way that I could receive these files? Thank you for your time.

23-10-2007 14:19

Madison

Re: paper: FIRST Drive Trains and Structures

Okay, it's up there now -- I got rid of the last, exceptionally pointless slide and voila.

It really is a very straightforward presentation that was supported by a lot of discussion, so I'm not sure how well that information will translate to the website here.

I'd be happy to answer any questions anyone might have, however.

23-10-2007 14:43

T3_1565

Re: paper: FIRST Drive Trains and Structures

I like it a lot!! I made a power point for my team at the end of last year similar to this. only I had just info on drive trains (nothing on gearboxes or how to build it or anything like that). I may have to use this as a compliment to mine (of course if your ok with that). We have a lot of the same info on the drive trains too which means I did a good job researching lol

23-10-2007 18:11

techtiger1

Re: paper: FIRST Drive Trains and Structures

I must say this is a pretty solid presentation, you cover what you need to over, have great visuals and keep it simple. Not only that but you worked humor in too it, so you can't beat that. Thanks Madison for taking your time to do this, I am sure it will be useful for many teams.

-Drew

23-10-2007 18:15

technoL

Re: paper: FIRST Drive Trains and Structures

This is a great presentation. I may be using some of it at the next mechanical meeting after we're done with Inventor. It's great to have all of the bases (literally, lol) covered in one simple source.

23-10-2007 18:32

tseres

Re: paper: FIRST Drive Trains and Structures

good job. i think that that pretty much covers everything we need to teach the rookies, and heck, the professionals, too. i like how you kept it realistic...some papers are more for experienced teams and of no use to new teams. good job!

24-10-2007 09:08

AndrewN

Re: paper: FIRST Drive Trains and Structures

Thanks. The presentation was very good and covered everything we wanted to hear about. If there was only a way to capture everything you said as well... we maybe building a simple practice chassis in Dec.

24-10-2007 12:28

JesseK

Re: paper: FIRST Drive Trains and Structures

Is that 2" C-channel for the 488 Drive Train? What do you guys use to make the holes, a mill or water jet?

24-10-2007 12:41

Fred Sayre

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by JesseK Is that 2" C-channel for the 488 Drive Train? What do you guys use to make the holes, a mill or water jet?

25-10-2007 01:56

dtengineering

Re: paper: FIRST Drive Trains and Structures

My favorite quote is about the banebots 56mm gearbox...

"I wouldn't trust them farther than I can throw them". (or words to that effect)

You know... you can get quite a bit of distance hurling one of those little things.

I've actually found ours to be quite reliable since they were fixed... but would have been willing to provide data on how far they could be thrown in about the first or second week of last February.

Since then they have contributed to our most reliable drivetrain ever, since their long shaft allowed for direct drive we had no chains to come off, thus eliminating one of the most common modes of failure for a drivetrain.

It is a nice powerpoint, I suspect it was a pretty fun presentation.

Thanks,

Jason

25-10-2007 02:33

=Martin=Taylor=

Re: paper: FIRST Drive Trains and Structures

This is a great pp!

But I would say that maccanum is almost as bad a system for frc as 2 wheels (for the exact same reasons that you gave for 2 wheel systems being bad).


Fred Sayre:

Worst drivetrain in FIRST history eh? You obviously arn't acquainted with frc100's 2005 drivetrain (actually the whole robot was terrible )

We tried to build a swerve drive that year:
-we literally glued the gears into the transmissions
-the flanged bearings were put in backwards so that they immediately fell out!
-Once the gears came loose we used bent nails to keep them in!
-And then the gears stripped themselves into perfect circles!
-We used ropes instead of chains (I'm not joking)!
-Oh yes! And it scored 1 tetra all season!

Well that’s all behind us now. We've learned a lot from our failures, and I owe our greatest achievements to our lowest mistakes

29-10-2007 14:49

Madison

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by dtengineering My favorite quote is about the banebots 56mm gearbox... "I wouldn't trust them farther than I can throw them". (or words to that effect) You know... you can get quite a bit of distance hurling one of those little things. I've actually found ours to be quite reliable since they were fixed... but would have been willing to provide data on how far they could be thrown in about the first or second week of last February. Since then they have contributed to our most reliable drivetrain ever, since their long shaft allowed for direct drive we had no chains to come off, thus eliminating one of the most common modes of failure for a drivetrain. It is a nice powerpoint, I suspect it was a pretty fun presentation. Thanks, Jason

07-11-2007 19:15

GMKlenklen

Re: paper: FIRST Drive Trains and Structures

well, I'm really glad i found this!
have to give a presentation in about an hour... and had forgotten about this fact.

one thing i wish i knew:

0"<X<_"


...

drawing a blank here...


i'll just turn it into a math joke or something XD

Thanks,
Mason

07-11-2007 19:18

Madison

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by GMKlenklen well, I'm really glad i found this! have to give a presentation in about an hour... and had forgotten about this fact. one thing i wish i knew: 0"<X<_" ... drawing a blank here... i'll just turn it into a math joke or something XD Thanks, Mason

04-12-2007 07:25

vic burg

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by technoL This is a great presentation. I may be using some of it at the next mechanical meeting after we're done with Inventor. It's great to have all of the bases (literally, lol) covered in one simple source.

04-12-2007 17:29

Re: paper: FIRST Drive Trains and Structures

Wow! I just Dl'd this, and I've gotta give major props! This is quite the sweet little overview! I might have to yoink this for giving to my noobs... er. Freshmen?

04-12-2007 17:37

Madison

Re: paper: FIRST Drive Trains and Structures

Quote:

Originally Posted by 114ManualLabor Wow! I just Dl'd this, and I've gotta give major props! This is quite the sweet little overview! I might have to yoink this for giving to my noobs... er. Freshmen?

Quote:

Originally Posted by vic burg Yeah, I agree. This presentation rocks! M. Krass, is it alright if we (108) use your presentation for our kids at a meeting? Pwease?