Chief Delphi - Is this an FRC record?

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - Is this an FRC record? (http://www.chiefdelphi.com/forums/showthread.php?t=136272)

orangemoore

31-03-2015 23:00

Re: Is this an FRC record?

Quote:

Originally Posted by Thunderstorm (Post 1464528)

We measured our robot DERP today and ended up with a 31' 9" total wingspan.

The field is only 54 feet wide so there is truly a maximum but for practical purposes you guys probably have reached the longest length.

Also it looks to be a very cool robot.

Chief Hedgehog

31-03-2015 23:11

Re: Is this an FRC record?

Regardless of record - that is one heck of a robot! definitely one of my favorite robots this season!

Thunderstorm

31-03-2015 23:16

Re: Is this an FRC record?

Quote:

Originally Posted by CalTran (Post 1464583)

That's pretty incredible. I like the casual reach-over-to-the-step-grab-container that you had going there. Are STEP containers the only containers that you can use, or if someone were to bring you another, could you direct the arm to grab it? Also, really clever to move the robot rather than the stack.

Yes, the end of our crane is actually a suction cup, we can grab containers on their side using that, however, we found that for upright containers it was easier to stick the whole suction cup inside the hole and pull it from there

The other Gabe

01-04-2015 00:42

Re: Is this an FRC record?

your robot is cool, and I have a question or two
why not set it up in the 60 seconds before the match instead of doing the things in auto? were you having trouble getting it down to just a minute? (it would let you canburgle in auto)

also how on earth did you get that under 120 lbs?

orangemoore

01-04-2015 00:47

Re: Is this an FRC record?

Quote:

Originally Posted by The other Gabe (Post 1464705)

You cannot start in the auto zone, which they would be sitting in if they did expand before the start of the match.

EricH

01-04-2015 01:06

Re: Is this an FRC record?

Quote:

Originally Posted by ratdude747 (Post 1464606)

I know in 2003 T3 (68) had a field-wide bot (unfolding blockade) that was ruled illegal... IIRC that was the record pre-2015 (if you want to count it, IIRC it didn't see competetion?)

It did, but not in that configuration. There were certain aspects of that robot that were very, very into a gray area that didn't really exist; some retooling would have probably made it legal in the field blockade configuration. The robot was retooled a bit into a non-blocking configuration.

I can't think of any other massive-expansion robots; you have to look prior to 2006 for them. Now, height of the robot is another story...

AdamHeard

01-04-2015 01:13

Re: Is this an FRC record?

Quote:

Originally Posted by Joe Ross (Post 1464674)

While their wingspan isn't quite as large, 365 in 2002 reached across most of the width of the field and had a tether to cover the length. I don't remember if 71 had a tether that year.

http://www.chiefdelphi.com/media/photos/13784
http://www.chiefdelphi.com/media/photos/13623

71 had a tether

samfruth

01-04-2015 09:49

Re: Is this an FRC record?

1710 was around 8.5ft tall last year and that height was static. Haven't seen another bot yet that has matched it.

Thunderstorm

01-04-2015 12:04

Re: Is this an FRC record?

Quote:

Originally Posted by The other Gabe (Post 1464705)

how on earth did you get that under 120 lbs?

Well, for starters, you'd be surprised what you have weight for when you get rid of a drive train and use no CIM motors. We could have reduced weight on the stacker but we wanted as much as we could afford in the stacker to counterbalance the crane. We also found that mangling a couple wal-mart ladders could give some decent structure on the conveyor for very low weight and the structure of the crane is almost entirely thin aluminum bent and riveted into rectangular tubes. There was alot of other stuff we wanted to add to our robot but did not have the weight for. We had a plan in the works to get the other 2 containers off the step using suction cup shooting crossbows. :D

Mastonevich

01-04-2015 12:08

Re: Is this an FRC record?

Quote:

Originally Posted by Thunderstorm (Post 1464831)

you'd be surprised what you have weight for when you get rid of a drive train and use no CIM motors.

This - Nicely done, but now I have a question. How does the robot move after creating the stack if you don't have a drivetrain?

CalTran

01-04-2015 12:11

Re: Is this an FRC record?

Quote:

Originally Posted by Thunderstorm (Post 1464831)

We had a plan in the works to get the other 2 containers off the step using suction cup shooting crossbows. :D

::ouch:: ::safety::

CalTran

01-04-2015 12:12

Re: Is this an FRC record?

Quote:

Originally Posted by Mastonevich (Post 1464833)

This - Nicely done, but now I have a question. How does the robot move after creating the stack if you don't have a drivetrain?

Probably passive wheels/bearings and the same stack-pushing concept y'all had.

tr6scott

01-04-2015 12:16

Re: Is this an FRC record?

Just so much Wow there, great design and execution to have a complex machine make weight and function.

GreyingJay

01-04-2015 12:59

Re: Is this an FRC record?

Quote:

Originally Posted by CalTran (Post 1464837)

Probably passive wheels/bearings and the same stack-pushing concept y'all had.

Maybe build the first stack against the wall and then push against the stack to move yourself down?

Citrus Dad

01-04-2015 16:35

Re: Is this an FRC record?

Quote:

Originally Posted by Thunderstorm (Post 1464528)

I was just wondering if any of you know of an FRC robot that is larger than our robot this year. Since our 2015 season is done, we want to make some memorial plates commemorating our achievement and want to make sure it is a legitimate record. We measured our robot DERP today and ended up with a 31' 9" total wingspan. Here is a video of it competing at the Oklahoma Regional last weekend for those who havent seen it

#teamconveyor
#teamcrane

A creative response to the challenge. However, it's a bit like watching grass grow for excitement...

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