Chief Delphi - Video of 1114

Page 3 of 5

Show 100 post(s) from this thread on one page

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

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

- - Video of 1114 (http://www.chiefdelphi.com/forums/showthread.php?t=135572)

Knufire

10-03-2015 02:40

Re: Video of 1114

AFAIK, the RC claw lift is unpowered. Gravity is all that makes that claw fall down.

Alex2614

10-03-2015 04:21

Re: Video of 1114

Quote:

Originally Posted by Siri (Post 1455882)

Actually, I'd suspect the RC claw height is passive. But yes, there seems to be a lot that's automatic, either in software or in physics.

Yeah definitely looks like gravity is the only thing feeding the RC claw. Which is very clever

Batterink

10-03-2015 09:27

Re: Video of 1114

I wonder if they use (or could use) a constant force spring on the can holder to push down slightly, helping stabilize the stack.

Kevin Sevcik

10-03-2015 10:21

Re: Video of 1114

I think a lot of their stack stability comes from that claw. If you look close in slow-mo (cause they're moving too fast otherwise) you can see a shiny bit below the red claw at the back. When they've lifted 2 totes, the claw briefly releases and drops to the top of the totes, then closes again with that shiny bit at/below the top edge of the top tote. It's important enough that they actually pause all that insanity until the claw re-engages. So that claw isn't just an RC grabber, it's also for capturing the top tote. Holding that tote with a little downward pressure would definitely make a much more stable stack.

FIMAlumni

10-03-2015 10:28

Re: Video of 1114

Ton's of tiny details make this robot so impressive. I enjoyed watching the HP poke the ramp down with a noodle once it was needed. Before that it was up against the wall and out of the way.

FRCTop10

10-03-2015 11:56

Re: Video of 1114

Quote:

Originally Posted by Bochek (Post 1455567)

I will have all the matches from GTRC up later tonight.

Sorry to keep you all waiting.

Did you happen to get the videos uploaded last night? If so, link?

Maybe you can even email a few to review as I will be finishing the FRCTop10 video for top plays for week 2 today. Thanks.
frctop10@gmail

DampRobot

10-03-2015 17:10

Re: Video of 1114

Quote:

Originally Posted by Batterink (Post 1455929)

I wonder if they use (or could use) a constant force spring on the can holder to push down slightly, helping stabilize the stack.

I would agree. 1114 is too smart to trust something as important as their claw return to gravity alone.

Ichlieberoboter

10-03-2015 17:33

Re: Video of 1114

WOW. UNBELIEVABLE.

Kevin Sevcik

10-03-2015 18:19

Re: Video of 1114

Quote:

Originally Posted by DampRobot (Post 1456143)

I would agree. 1114 is too smart to trust something as important as their claw return to gravity alone.

Gravity is actually well known for its reliability. It just doesn't have a good power to weight ratio. And, of course, it depends on keeping the wheels the right way down.

Looks like the claw takes 16ish frames to fall, which is slightly faster than gravity alone for 78 inches. So yeah, the have something on there to help it along.

Bochek

10-03-2015 18:32

Re: Video of 1114

Sorry everyone, I got sick from all the traveling. The GTRC video's are uploading as we speak.

- Adam

mman1506

10-03-2015 18:43

Re: Video of 1114

Quote:

Originally Posted by Kevin Sevcik (Post 1456180)

Looks like the claw takes 16ish frames to fall, which is slightly faster than gravity alone for 78 inches. So yeah, the have something on there to help it along.

As someone who was lucky enough to see this bot in person there's definitely nothing but gravity pulling it down.

philso

10-03-2015 18:48

Re: Video of 1114

Quote:

Originally Posted by mman1506 (Post 1456184)

As someone who was lucky enough to see this bot in person there's definitely nothing but gravity pulling it down.

I would love to see it in person or at least some close-up photos. Our lift carriage was sticking pretty badly at first due to all sorts of misalignments.

Bochek

10-03-2015 19:16

Re: Video of 1114

Quote:

Originally Posted by Bochek (Post 1456183)

Sorry everyone, I got sick from all the traveling. The GTRC video's are uploading as we speak.

- Adam

Most Quals are up. http://www.watchfirstnow.com/archives

z_beeblebrox

10-03-2015 19:43

Re: Video of 1114

Quote:

Originally Posted by DonShaw (Post 1456215)

Should have been disabled and DQ'd per the rules. It does not state intentional or unintentional. The rule is very clear. Sorry I am a rule follower. All of this plays into design and mechanical build to work correctly during a match.

It is a great robot although!

Why do you think it is illegal?

Looking forward to seeing video of the finals...

Kevin Sevcik

10-03-2015 20:36

Re: Video of 1114

Quote:

Originally Posted by mman1506 (Post 1456184)

As someone who was lucky enough to see this bot in person there's definitely nothing but gravity pulling it down.

Well 18 frames is about how long a gravity drop from 78" should take, so I guess I must've missed some of the slower acceleration at the beginning. And/or it's not dropping a full 78".

All times are GMT -5. The time now is 05:16.

Page 3 of 5

Show 100 post(s) from this thread on one page