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857 mostly complete robot
As of Saturday afternoon the robot is 90%. The wiring pictured is half temporary half official, we still have work to do on our box stacking device, and plenty of armor plating to add.
Semi-official weight as pictured is about 75 pounds. There are about 20 more pounds of robot components to be added, the rest after that is for pretty stuff. Specs: 2 wheel swerve 3 d.o.f. arm box indexing device that creates stacks of 4 boxes the robot has a ground speed of about 5.5 fps, fits nicely under the bar in about 1.5 to 2 seconds(total fold time), and has really surprising traction(mostly because the arm allows us to distribute the cg directly over our front wheels), the final development of this system should allow us to create stacks of 4 and then place them of stacks of up to 3. http://www.chiefdelphi.com/forums/pi...&quiet=verbose http://www.chiefdelphi.com/forums/pi...&quiet=verbose http://www.chiefdelphi.com/forums/pi...&quiet=verbose http://www.chiefdelphi.com/forums/pi...&quiet=verbose Anthony Lapp Lead Design Team 221-->857 Superior Roboworks |
Very Nice! How many students, engineers, teachers, etc are on your team?
Also, Where does the rotating light go? |
Very very cool. Wish i'd thought of laying the boxes down backwards on our arm. i'll see if i can convince my team to alter the arm to do that... just might work :). Nice vector drive and omniwheels also. Reminds me of what our robot should look like, instead of being pieces. Sweet robot and good luck at the competitions.
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team info
we are a college team run by college students. we have roughly 10 or 12 college mentors, about 15 high school students and one high school teacher, although his time is tight and he is unable to be really involved.
the team was officially started in 2000 by myself and three other friends of mine from high school. i was a member of team 221 as a senior in high school, the other guys were from team 27, we started the team as freshman here at tech. |
How do you pick up boxes? Do you have to pick them up by being right on top of them?
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roller chain assembly
the chain on the arm when finished has chain hooks which lift the boxes along the rails.........
some of this assembly is pictured, but not all of it. the arm can pick up boxes in any position, including parallel to the ground or completely perpendicular to it. |
Quite impressive. I really need to see it in action to ever hope to comprehend what in the world it's doing. I assume you're going to at least one of the michigan regionals, so mabye i can see it there.
Very impressive. |
Hmm...
One thing is for sure, that robot is sexy. My only dislike is the 2wd and crab+omni wheels. I would think you might have some problems going up the ramp, and will not be able to compete on the top of it... Besides that it's great for it's intended purpose. Greg |
That is extremely amazing.
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Nice looking robot guys. |
it looks a little tipsy... did you do any tests pushing against the top of it? or put it up against your old bot, see if you get pushed over
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bolts in treads...
What to folks think about the bolts attaching the tread?
I think literal interpretation of the rules would not allow them. Other thoughts? Joe J. |
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it looks pretty flimsy.
it doesnt have much of a solid framework. o well at least u guys did what u set out todo bad |
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Greg |
over the ramp stability
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because of the 3 d.o.f. of the arm assembly, radical changes in cg position can be made. The enitire assembly when folded down is just over 14 inches and we can navigate the ramp in that form, so we can be very tippy, or very not tippy when we want to be. |
Re: bolts in treads...
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Re: bolts in treads...
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Adam |
FIRST has declared in Team Update #10 that metal fasteners used to attach tread to wheels are permissible.
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Thank you for calling me out on that... You are correct and I was in another world when I posted that.
FIRST clarified their position on Rule M17 on the following post to the FRC Forum by a person on our strategy team. http://jive.ilearning.com/thread.jsp...t=30&trange=15 |
Very cool. Thanks for bringing that question/answer from the FRC Forums to my attention. I missed it.
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What happens when your robot is smashed into at full speed? (It will probably happen to most robots at some point)
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robot as of february 1
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several things in that pic are also quite temporary like the tube frame. if you have an opportunity to see the robot closer to ship it will most likely have a more substantial outer surface. |
come this saturday we'll have the whole kit and kaboodle.....
the robot is shaping up nicely.
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