View Full Version : Team 190 Promo Video
Nuttyman54
24-02-2011, 20:44
Team 190 Presents our latest creation: Gompe-saurus Rex, or G-Rex for short. It's one of the best looking and performing machines we've created to date. Built for speed and plays all aspects of the game. Minibot and deployment are under wraps until competition.
http://vimeo.com/20350475
Specs:
Drive - 4 CIM 6wd, can be changed from 6 traction dropped center to inline rear omnis for a more forward turning center.
Tube Scoring - Fast roller claw with elevator, 1.5 seconds bottom to top
Minibot - Secret. Deployment system includes alignment device (shown) to line up robot.
Autonomous - Camera controlled heading, ultrasonic controlled distance.
Grim Tuesday
24-02-2011, 20:55
Wow looks amazing! Fantastic lift and gripper!
Ive seen most teams using those green wheels for roller claws, what kind of wheels are they? who makes them?
Ive seen most teams using those green wheels for roller claws, what kind of wheels are they? who makes them?
www.Banebots.com
swamp_child
24-02-2011, 21:36
Those would be banebot wheels.
http://banebots.com/c/WHB-WS-398
one of those
I know that BB gearboxes are back ordered, so would that mean the wheels would be too?
Chris is me
24-02-2011, 21:44
That looks far too simple to be a 190 robot.
Nuttyman54
24-02-2011, 21:48
That looks far too simple to be a 190 robot.
You haven't seen what goes on the back yet :-P. Trust me, it's 190 through and through.
Akash Rastogi
24-02-2011, 22:13
Hoping for another wall of maroon?
Sick gripper and I like the compact lift.
Wow. A tube comes anywhere near that gripper and it snatches it right up. Well done!
Carter12s
24-02-2011, 22:24
That looks fantastic! I really hope we can pit our bots against each other! Good Luck!
ks_mumupsi
25-02-2011, 04:52
Cant wait to see this at DC :)
Good looking bot and awesome music on the video.
Kims Robot
25-02-2011, 08:02
Simply amazing... I want to buy one of those grippers... just to run around my house with lol :)
Looks like another Einstein contender!
Easily one of the fastest roller grippers I've seen this year. Congrats on building a solid robot this year, I can't wait to get a closer look at it in a couple weeks at the WPI Regional.
all i can say is SICK!!!!! great job guys
Chris is me
25-02-2011, 10:12
So, how well do you guys pass tubes?
It looks like between the traction drive train and the fast gripper, you guys can serve not only as scorer but as tube relay.
I look forward to seeing this one in person in DC!
this is a hoax...it can't be a wpi robot since it's working before ship date....
:yikes:
Nuttyman54
25-02-2011, 13:24
this is a hoax...it can't be a wpi robot since it's working before ship date....
:yikes:
This is the real deal, no hoaxes here! It is a rare occurence that the robot is at this level of completion by ship, but it would not be the first time. 2007 and 2009 come to mind...;)
=Martin=Taylor=
25-02-2011, 21:11
When I see robots like this I just have to ask the question....
why....
why.........
why would you NOT build a roller claw????
Admit it, claws have no advantage over roller claws. none.
BrendanB
25-02-2011, 21:15
When I see robots like this I just have to ask the question....
why....
why.........
why would you NOT build a roller claw????
Admit it, claws have no advantage over roller claws. none.
Depends on if someone hits you from the side and it slides out. This is one of the most effective roller claw designs I have seen this season! Offsetting the top from the bottom is really effective! Good job 190!
Chris is me
25-02-2011, 22:54
When I see robots like this I just have to ask the question....
why....
why.........
why would you NOT build a roller claw????
Admit it, claws have no advantage over roller claws. none.
Weight, grip strength, simplicity... Many reasons to go pinch right there. Rollers are great, but with non spherical game pieces that slide well, pinch works.
Stephi Rae
27-02-2011, 02:25
This claw weighs 7lbs, including the two BB550 motors with gearboxes.
The claw is designed such that it wraps around the inside of the tube, reducing the concerns of a tube being able to be hit from the side and fall out. It is also passively compliant, in order to allow for all three tubes' shapes and sizes, including partially deflated tubes. This compliance allows for constant positive pressure on the tubes to insure a good grasp.
Additionally, we are able to pick up any tube in any orientation, at any angle. This includes spinning the robot and hitting the tube from the side, or only engaging the side of the tube with none of the claw in the center of the tube.
Each of our subsystems have small unique characteristics. In typical 190 style we cannot let all things go simply conventional.
We have very much enjoyed designing and building this robot, and are looking forward to the competitions! (And to showing off our minibot and deployment systems!)
Jstack14
27-02-2011, 21:08
Very impressive robot no doubt! My only question (and maybe i missed it in the video) is does it reach the top row? Great roller claw, wish our team had done something like that but our simple claw works perfectly fine and only lets us down on a few ocasions.
Nuttyman54
27-02-2011, 21:34
Very impressive robot no doubt! My only question (and maybe i missed it in the video) is does it reach the top row? Great roller claw, wish our team had done something like that but our simple claw works perfectly fine and only lets us down on a few ocasions.
You didn't miss it (there is a picture in the very beginning, but it flashes by quickly). It can reach the top row, unfortunately the practice area in the hallway has too low of a ceiling for us to do that, and we didn't have the elevator running at the scrimmage. It takes approximately 1.5 seconds for the elevator to run from ground to the top row scoring height.
Navid Shafa
28-02-2011, 02:03
Nice music choice, Love the Jurassic Park clips. Looks like an all around great robot. Love the lift design, it is strikingly similar :)
Hope to see you guys again at World Champs, tell everyone hello from the Skunks!
This is the real deal, no hoaxes here! It is a rare occurence that the robot is at this level of completion by ship, but it would not be the first time. 2007 and 2009 come to mind...;)
I'm just kidding with you guys...I'm a WPI alum and know the O'Rourke's and Ken, Brad and everyone real well, so I was just picking a little bit. WPI's normal motto is the robot will be finished by the last off-season event!
I'll be coming down to DC to visit and check it out in person! Good luck
-Sarah
When I see robots like this I just have to ask the question....
why....
why.........
why would you NOT build a roller claw????
Admit it, claws have no advantage over roller claws. none.
Eh, you may want to qualify this claim.
I don't think any of the roller claws I've seen have weighed 2.5 lbs like our simple claw does (due to motor/gearing).
I don't think any of the roller claws I've seen cost as little as our roller claw did to fabricate (assuming free labor) -- $30 raw, $12 actual used parts (+ 1 free Bimba cyllinder & 1 KOP solenoid valve).
Roller claws take much more to fabricate and maintain as well.
Ours is designed to have a similar amount of room for driver error that a skinny roller claw does.
If it gets ripped off, we have another one since 2.5 lbs is easy to fit in the withholding allowance.
In the worst case where 2 get ripped up, we could build another one in under half an hour.
So if you're naive to always fall for 'THE best' type claims about any one design in FRC, sure roller claws would win for fastest & flashiest I suppose. Yet there is plenty of anecdotal evidence that it doesn't matter on the FRC field (330 in 2007, 217 in 2008) as much as strategy & driver practice does. So to me, holistically, roller claws and pinchy claws (or inverse-pinchy in our case) are pretty much the same for the majority of teams out there (including those who have never heard of CD) -- so long as they grab the tube in a reasonable amount of time with a reasonable room for error, then hold on to the tube, then let it go, it doesn't really matter which design is chosen.
Jared Russell
28-02-2011, 13:44
If it gets ripped off, we have another one since 2.5 lbs is easy to fit in the withholding allowance.
Spare parts do not count against the witholding allowance.
Vikesrock
28-02-2011, 13:51
Spare parts do not count against the witholding allowance.
You may want to look again. If the spare parts are fabricated they absolutely do count against the 30lbs as they are not one of the 3 exceptions in R33.
Nuttyman54
28-02-2011, 14:34
Admit it, claws have no advantage over roller claws. none.
To jump in to the roller claw vs standard claw debate, it depends on what advantage you're talking about. From a pure performance standpoint, disregarding all design consequences such as weight complexity, etc., a well-built roller claw will typically outperform a well-built piston claw.
Unfortunately, as with most things in life, it's not that simple. 190's 2007 robot can attest to a non-roller claw being an advantage, as the gripper on that robot weighed only 2 lbs, and thus allowed us to have a gripper. We chose a roller claw for this game because we had the weight and resources available, and were able to prototype enough iterations to drill down the design you see in the video. As JesseK points out, however, just because it's the best solution for one team doesn't mean it's the best solution for every team.
As far as spare parts go, this claw has plenty of spare parts, since it's mostly COTS items. The fabricated plastic parts weigh probably 1-2 lbs each, so they don't eat much into those 30 lbs.
davepowers
14-03-2011, 00:08
I watched you guys at WPI over the past weekend, outstanding minibot. By far one of the best ones at the competition. That intake rollers were also awesome, it was fun going up against you guys. Good luck in St.Louis!
Nuttyman54
14-03-2011, 00:13
I watched you guys at WPI over the past weekend, outstanding minibot. By far one of the best ones at the competition. That intake rollers were also awesome, it was fun going up against you guys. Good luck in St.Louis!
Thanks! What most people don't know is that our minibot was running the entire event with smoked tetrix motors. We burned them the day before the regional in testing, but since it still worked well and reliably, we made the decision not to change it and risk compromising the reliability. We're building V2 for DC, so we should be even faster there.
Congrats on the Chairman's, see you in St. Louis!
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