03-02-2007 22:07

sdcantrell56

Re: pic: Team 1345, end of week 4.

I must say. Thats a pretty nice looking robot

03-02-2007 22:42

Keo-san

Re: pic: Team 1345, end of week 4.

Hey Arafin. I think I'm almost done with our robot's cam. If the code goes well I'll be happy to help your team

03-02-2007 22:47

zander_108

Re: pic: Team 1345, end of week 4.

cool stuff arefin, cool stuff.

03-02-2007 22:50

Re: pic: Team 1345, end of week 4.

Robot looks great, but are you building that in a computer lab?

That seems like an inopportune place to build, with all the computers in danger.

03-02-2007 22:52

Michelle Celio

Re: pic: Team 1345, end of week 4.

We spent the first 2 weeks of build season in a computer lab. As long as you're carful, everything is a-ok.


---

Arefin, after seeing yours and 1889's robot pictures...I'm scared for the Florida Regional.


Great Job.

03-02-2007 23:06

Tim Arnold

Re: pic: Team 1345, end of week 4.

I spy with my little eye...

Nice job 1345 guys, good to see your 06 bot is still in one piece too.

03-02-2007 23:09

Lil' Lavery

Re: pic: Team 1345, end of week 4.

Now that it's only 4 feet, how well can it score the top spider (if at all)? If it can, what method are you going to use to place them on the top spider?

03-02-2007 23:10

redbarron

Re: pic: Team 1345, end of week 4.

Wow, this looks like a twin of our bot this year and we will be in Florida this year too.

03-02-2007 23:43

Travis Covington

Re: pic: Team 1345, end of week 4.

How thick is the polycarb on the ramps?

03-02-2007 23:44

bjimster1

Re: pic: Team 1345, end of week 4.

You haven't seen nothin' yet...

03-02-2007 23:49

Arefin Bari

Re: pic: Team 1345, end of week 4.

Sean, to answer your question, yes it can score on the top one... but it takes time to line up and then try to score, so I will say, no we won't be scoring on the top spider. Today it came down to either going down to 4' and putting the ramps on or stay at 5' and be able to score on all 3 levels of spiders and have one ramp. Students thought it would be better to have two ramps and give up the top spider, so we went with it.

Travis, the lexan on top is 1/16".

Jimmy, you are right. Florida regional will be packed with robust bots. Can't wait to compete against/with you.

03-02-2007 23:57

Rich Ross

Re: pic: Team 1345, end of week 4.

Hey Arefin (and all the platinum Dragons),

I like the ramp system, seems like a good idea for a ramp system. I have a couple questions though.

1. What keeps robots from driving up your ramp, then driving right onto your chassis/electronics? I'm sure you thought of this, i just dont see the system in this picture.
2. How do you lower the ramps/platforms? can you raise them back up if need be?

Just some food for thought.

04-02-2007 00:05

Arefin Bari

Re: pic: Team 1345, end of week 4.

Rich, thanks for your comment. Here are the answers...

1. We will put some kind of stop there (a bar of some kind) that will hold the robot back from hitting our arm or drive past the ramp structure and fall on the electronics.

2. How? we have few different ideas. I will share it with you and the community as soon as we figure out which would be the best way for us to do it. When raised the ramp looks like an upside down V. We don't want to raise the ramps back up once we deploy them. Plan is to drive back to the homezone with enough time to move all the tubes out of the way and then deploy the ramps for our alliance partners, giving them enough time to climb up. The ramp starts off at a 5 degree angle and slowly goes up to 20 degrees.

04-02-2007 07:13

FDA1029

Re: pic: Team 1345, end of week 4.

Do you think you're going to have room for guard rails, just in case the robot wasn't lined up straight as it was going up?

04-02-2007 13:37

David Guzman

Re: pic: Team 1345, end of week 4.

Nice work 1345.

We will be climbing that ramp thats for sure.

Keep up the good work.


As for the Florida Regional , yes it WILL be insane

04-02-2007 13:43

Josh Murphy

Re: pic: Team 1345, end of week 4.

Looks good!!! I have some questions since you have tested yours already.

How grippy is the lexan cover? is it slippery or does it give them more traction?

04-02-2007 14:58

Dan Richardson

Re: pic: Team 1345, end of week 4.

Wowza, looks sharp great job guys.

My only question is that that looks like quite a bit deflection in your cross members of your ramp.

Have you done any calculations or measurements to see how close you are to the edge of where yielding will occur? I would hate to see it begin to form itself into an unusable shape ( then again you can always replace it if or when that happens )

Also, did you drive the bot up the ramp or place it there? I'm kind of curious to how well that polycarb ( or acrylic? ) holds up when a robot kind of slams into it.

It looks solid tho maybe its just the angle of the picture that looks like its causing that deflection. Maybe run some calc or even easier just some bench tests to see how when the dynamic loading / impact force of the robot running into and driving up the ramp will effect the integrity of those cross members.

I'm sure you've already been beeting the heck of it hehe but just a reminder.

Looks great, I'm deffinately gonna be scared to play you guys at UCF!

04-02-2007 15:04

Brad Voracek

Re: pic: Team 1345, end of week 4.

You guys plan to only have one ramp?

My mentor is trying to convince us, if we're overweight, to remove one drive motor on each side (right now we have two per side). I say we remove one of the ramps... We'll be better defensive, and we have a good manipulator. The ramp(s) will just help us get to the finals... then scoring should allow us to win. At least that's how I view it =/.

04-02-2007 16:03

Arefin Bari

Re: pic: Team 1345, end of week 4.

Team 1029, yes, there will be some kind of guard rail once we get the whole ramp working.

Josh, it's lexan. I wouldn't say its very grippy, but our last year's robot had no problem climbing up that ramp. If traction becomes a problem, we will put some stair tread on it.

Dan, yes, there is a bit of deflection in the back, if it collapse anywhere, it would collapse in the back. The plan is to have U shaped legs for supports instead of just one 1x1. Ran some calculations and it will hold atleast 180 pounds. I don't think anybody's bot will be more than 150. We drove the robot up the ramp, not place the robot on it. We ran into the ramp full speed (which was probably about 7/8 fps) and with 2" of clearance (last year's robot), the robot didn't have any problem getting up the ramp. Dan, you already know how much I beat the crap out of the robot during build, so it doesn't break during regionals.

David, you guys are welcome to climb up our ramp. =)

Brad, we will have two ramps. One on each side. Students just build one of them yesterday, so we could test it out. We should have the other one done very soon. Stay tuned.

04-02-2007 16:06

MattLi

Re: pic: Team 1345, end of week 4.

What is the material on your ramp made out of? Is it polycarb?

04-02-2007 16:08

GVDrummer

Re: pic: Team 1345, end of week 4.

looks nice!!!

04-02-2007 16:12

Rohith Surampudi

Re: pic: Team 1345, end of week 4.

that looks sweet

04-02-2007 16:16

Michelle Celio

Re: pic: Team 1345, end of week 4.

A quick google search also says that polycarb is the same as lexan, that lexan is just a brand name for it.

04-02-2007 16:18

Eric Scheuing

Re: pic: Team 1345, end of week 4.

The arm reminds me a lot of the 177 bot from '05. Huge sprocket on top FTW.

06-02-2007 20:25

enpurx

Re: pic: Team 1345, end of week 4.

We have nearly the exact same ramp setup as you guys (one ramp on each side and same metal supports but with crossbars supporting the legs), but we can't figure out how to deploy them. We've tried different methods, but our rookie brains are stuck. Any help would be appreciated.

Thanks!