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pic: Team 148 - 2011 - Raptor
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Re: pic: Team 148 - 2011 - Raptor
I will be the first to comment and that is the coolest looking bot i have ever seen
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Re: pic: Team 148 - 2011 - Raptor
Another year, another great Robot!! See y'all in Dallas. :cool:
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Amazing again!
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Is that another nonadrive I see there?
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I was just looking closely at your drivetrain. Is that the same drive system you guys used last year?
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Beautiful! Hope to see it in person later this season...
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I cannot wait to see this bot in action. Jaw dropping to say the least.
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Wow! This is one of the most beautiful robots I have seen!
Another quality machine from the 148 crew! |
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Congratulations. That's really all I have to say.
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Another great one I counting down the days to Alamo to see this bad boy in action. Just curious, why the name raptor after armadillo, tornado, tumble weed, ect.
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I for one am glad I live and compete in New England. Awesome job guys.
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Beautiful. Just Beautiful. I need to calm down before i can figure out what i am feeling...
~DK |
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Jane |
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Between the underglow and the engineering, it's mesmerizing.
Great video to go along with it. It's always fun to watch the videos. |
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I really like the way you throw tubes out to the end of the lane instead of going up to the wall.
Oh ya, cool robot too.;) |
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Killer mechanism, the extending linkage on the top is brilliant! The large gear/arm member on the bottom looks like a part that could cause a lot of headaches... did you have any strange issues to overcome with meshing a gear to the stacked aluminum plates?
I also love the way you implemented a telescoping mechanism with the rollers in the tube, I'm gonna have to play with that idea in the future. Lots of clever bits wrapped into your bot this year. Fantastic robot as usual, and once again I'm super jealous of your fabrication abilities. |
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Wow.
That robot is amazing, I'm especially fond of the deployment system for the mini-bot. Way to go 148. |
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The practice robot shoulder joint has been running up and down since Day 18 of the build. It "just works." No worries at all with the plate gear experiment. Lots of laser cut plate gears on Raptor... Yes, we are proud of some of the more subtle features inside Raptor. I know there are some that most people totally ignore that will be impressive to a mechanical designer with a good eye... -John |
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That right there is what FIRST is all about...simply inspiring...
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It reminds me of a certain dominating machine from 2007... with some very scary twists. Scary, that is, if you're behind the opposite glass. Looking good!
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Wow. Thats all I have to say.
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Very nice robot, 148. Much to learn from this one. Good luck to you this year, and you can be sure I'll be paying your pit a visit in St. Louis ::safety::
P.S. Awesome musical taste, as usual ;) |
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Eh, looks decent.... ;)
Kudos on another terrific machine 148. The hard work your entire team puts in all season really shows in the final(ish) product. -Brando |
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how quick is that minibot
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Thank you, this is exactly what I needed after a long day in the shop.
Great design! I love the push link and the roller claw....seems vaguely familiar. Thanks for the note :p Can't wait to see it in person. I guess I will have to watch the video a few more times...maybe there's more hidden gems. Awesome job 148! EDIT: Didn't notice the first 10 times, but that is an articulating roller claw....just amazing! |
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wow... i wish we could get the chance to play with you guys more often. your bots are always some of the most intricate and well designed machines out there. props on another insane bot!! best of luck this year!
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wow... you guys seem to love the the robot lights.
looks sweet, thats for sure. performs well. Good luck! |
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Totally awesome. I've been following the blog all season, and the finished product definitely exceeds the high expectations I developed from that.
Can't wait to see it in person at CMP (and maybe get a guided tour of the subtleties?). Quote:
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It's a great machine, I loved the intro! Love the four bar even more, especially combining the rotation of the claw into the four bar.
I hope it does better than the last two robots named raptor (973 in 09, and 254 in 07), both fell in the semis at champs. |
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Looking good 148. And remember, don't let them haters hate. |
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John and 148 Members,
This is a beautiful machine and excellent intro video as always. We hope to see you in champs and good luck this season! I absolutely love the physical stop you placed on the arm to articulate the tubes into the right position. |
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Absolutely Awesome!
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JVN and crew:
You are more than engineers, you are artists! (or maybe that should read - you are more than artists, you are engineers!) |
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Dear team 148,
You are giving me nightmares. I admire your capabilities and your teamwork. Thank you for sharing the video with us and I sure hope I get the chance to see this robot in person. You all are an inspiration to the young generation. - Arefin. |
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Great video, awesome robot.
I hope that I have a chance to see it in person in St. Louis |
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Wow... once again 148 has produced a stellar bot.
Can't wait to (hopefully) see it in person in St. Louis! |
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What can I add beyond what has already been said? I am quite simply floored.
If you are making a pamphlet which explains your robot mechanically (I'm thinking of this one from simbotics in 08), I'd love to see it. I'm constantly sharing great designs with my team and, well, let's say your design "qualifies"... :) Yet another reason for us to strive for st. louis... -Leav |
Re: pic: Team 148 - 2011 - Raptor
Very cool.
Great work 148. |
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Can you imagine what they can do if a "feeder robot" was on their alliance?
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Video has been blocked by Sony Music Entertainment :mad:
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Wow. I love robots like this where everything is planned out and fits together perfectly. I'd love to work on a robot like yours.
I'm interested in how you guys operate during the build season. How long does your team take to design before you begin to build the robot, when do the programmers get their hands on it, how much time do you leave for drivers to practice? |
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Glad this beast in down in Texas. Unfortunately I'm going to have to deal with its Green twin probably. Any specs on the Mini bot speed? Looks to be magnetic. Robot looks awesome, hope you aren't on the blue alliance too much.
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There are no twins of this robot besides our practice bot. |
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Was there any collaboration between 217 and 148 this year?
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nice looking, though I wouldnt expect anythin gless :).. hope to see you guys in St. Louis.
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One of my favorite videos this time of year is always the final display from 148. yet again i am not disappointed. you guys amaze me in what you are capable of. One thing id like to know is how you train your students to make such amazing robots. The design alone must take many many hours of CADing. as a sophomore meche with a considerable amount of design experience i know I'd have quite a challenge making something like your robots.
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Re: pic: Team 148 - 2011 - Raptor
Eh, it is ok, I think it will get better as the season progresses. ;)
Seriously though, nice video can't wait to see how this thing works by the time Championship comes around. |
Re: pic: Team 148 - 2011 - Raptor
Great job again RoboWranglers. We look forward to seeing you in San Antonio.(Team 1296).
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I noticed there is a 217 sign in the background of the shop.
Hmmmmm. |
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It's beautiful! Everything is so fluid and an excellent design!
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Sick bot as always! hope to see you at St. Louis!
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Re: pic: Team 148 - 2011 - Raptor
nice bot, I'll be curious to see what 217 and 1114 look like this year though, either way this is a very well engineered bot
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Can't wait to see it in San Antonio. |
Re: pic: Team 148 - 2011 - Raptor
Echoing the sentiments of many before me, I congratulate 148 on an awesomely impressive robot. Your designs are inspiring and your videos extremely cool.
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Re: pic: Team 148 - 2011 - Raptor
I was going to post a funny joke, but it may not have been appreciated. ;) Either way, awesome robot once again.
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Re: pic: Team 148 - 2011 - Raptor
Karthik took down his funny joke so i took down my funny response :/
on the other hand though, Oh dang... |
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The mini bot alone will win most of there matches. Great job guys.
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I really have to commend your media crew. The insane amount of hours it must've taken to compile all the pictures and edit the video footage... that is A LOT of work. And every year, the reveal video is breathtaking, and just a bit better than the previous year. Nice work!
The robot looks pretty good too. ;) My jaw has become quite adept at self-healing, even with all the repeated drops to the floor. |
Re: pic: Team 148 - 2011 - Raptor
Hello Robowranglers,
Very impressive robot! :eek: This year, I'm hosting a Robot video unveiling competition. More info can be found here: http://suburbots2115.wordpress.com/ruv-comp/ I believe your video fits all the requirements. Would you consider joining for the chance to win bragging rights and a PNG image file badge? All you have to do is post your team name and number and a link to your video on this CD thread: http://www.chiefdelphi.com/forums/sh...threadid=88184 Thank You |
Re: pic: Team 148 - 2011 - Raptor
Great music selection :cool: and a front-contending bot as usual. I got some interest in creating an offseason nonadrive based on this video, but I'm still fairly certain it's beyond our fabrication abilities. Maybe we'll do a 12fps+ slide drive instead.
Those of us who never saw 67's linkage are left to ponder the way the 148 linkage works. Is it like the locomotive linkages on old-school trains? |
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I've got a question. This question isn't a criticism disguised as a question.
What reasons would a team want to deviate from the "standard" method of powering an arm by bolting a sprocket to it and chaining it off a high reduction gearmotor? Basically, what are the advantages of the cool linkage pushing up on your arm as opposed to driving the rotational joint of the arm? I've never learned much about arms and I don't understand the advantage or disadvantage of either system, other than CG placement. |
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I had the same thoughts, and can't seem to find a reason besides CG. Defiantly interested to know. - Bochek |
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One other reason is my hatred of chain, but mainly for CG reasons. I would also suspect this is lighter than an equivalent low-gearbox + chain + sprocket... Plus... c'mon... DOUBLE FOURBAR! |
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Now I must ask, where does your hatred of chain come from? Honestly The only time i have ever had problems is when it is very very poorly tensioned. -Bochek |
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Chain is functional, 148's goals are higher than achieving functionality. There were some benefits (some may say they're small, I disagree) to this design over chain and they designed for that. I imagine never having to break chain, tension chain, deal with chain growing, etc. are pretty nice. I would imagine their goal is to keep making cool, great performing stuff, while never having to do repair or maintenance. |
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Oh, my god. Double fourbar! What does it mean?!
Its so vivid! |
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There is also a design elegance to doing something different than running chain. I can tell you there are advantages and disadvantages to it. CG is probably the biggest advantage...other than 4 bar linkages are always cooler. In my mind the biggest disadvantage is the amount of packaging room required to allow the push link and connecting link to swing in the bottom of the robot. In 2008 we wanted to use a double 4 bar, but could not get it to package... so we mounted a sprocket to the arm and ran a long strand of chain. |
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It's going to be fun seeing the looks on a lot of rookies' faces when they see Raptor and 148 in action for the very first time.They'll wonder just what this FRC thing is all about and they'll want to learn more. Jane |
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http://blog.iamjvn.com/2011/02/insid...hip-joint.html -John |
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What's driving the hip joint on your robot? |
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I especially like the use of sheet metal for everything, including the stacked plates to create the gear teeth on the smaller arm driven by the gearbox. Thanks for sharing JVN. -Brando |
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You can see the 775 in this pic: http://1.bp.blogspot.com/-rFQ0CRqTKR...0/IMG_8024.JPG -John |
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Any recommendations on one that is pretty reliable? -Brando |
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-John |
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This robot is amazing.
I would think that the double fourbar linkage would actually simplify the arm's joint design (at least in my mind it seems so much easier to deal with weight and taking loads) in that you would have to worry less about powering the pivoting point (gearboxes and chain) and instead focus on the making the actual joint stronger and more stable. I also could see it as isolating the motors and gearboxes from the abuse (as in side loads) the arm could take in a match, which I see as beneficial seeing how much defense this robot will likely have to put up with. Those are some of many potential benefits that I thought of when I first saw it. |
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Here is a glimpse at one of the SIMPLE subtle features that I think makes Raptor special... press-on CIM pinions: http://blog.iamjvn.com/2011/02/insid...ion-gears.html -John |
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Wow. The press on pinions are very elegant. Did you guys do any slip calcs or tests?
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Awesome idea Greg. Kudos to team 20 for producing the parts. -Brando |
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That's a cool idea! I wish we had the resources to try cool things like that.
What's the easiest way for Low Resource Team to get press on CIM pinions? |
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Well it works for dewalt pinions, why not elsewhere, great idea
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If you had the right size reamer, you could do it that way....
Press fits are a reliable way of holding gears onto shafts. Getting the fit right is sort of critical, but even if you can get it within a thousandth of an inch or so you should be ok, if it's a tight enough fit. Drills don't work too well for this. Also the dewalt gear is IMHO too small to fit reliably on the CIM shaft, there just isn't enough meat there. Others will disagree... |
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Identify potential sponsors in your area who have EDM capability, and ask nicely. ...or reach out to a team in your region who already has an EDM-capable sponsor, then see if you can barter with them. We'll machine X parts for you if you give us Y extra parts or machine Z for us in return. Bartering is fun around these here parts. Our NEOFRA teams trade materials and sponsor services all the time. Example: I submitted some lexan from 379 to our waterjet sponsor along with all our parts; in return, the RoboCats gave me their unused KOP accumulator. |
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I will be sure to bug John and Greg about this in San Antonio next week. Andy |
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Not that WE've ever lost a gear due to lack of lubrication....just sayin.....but I suppose having a couple extra motors with gears pressed on would be a reasonable thing to do. |
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The easy answer is find someone with a wire edm to make them for you. You can do pressfits with a reamer on a lathe, but the issue with these is that every gear that I found that was off the shelf 11tooth already had a bore which was over the pressfit size. So you would need to find a source for some gear stock (if you find it let me know I couldn't find any. ) |
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