8/16/10 Cougar Tweaking(again, again, again) PDF Print E-mail
Thursday, 19 August 2010 20:50
So tonight, we worked on finishing up our routine rebuilding.  Basically, we made the robot go over walls in a more efficient way(which oddly enough is backwards!)  and from there we just made things work more towards the sweet spots.  well thats it for now, oh wait!  we timed our run.....can we have another minute please :D? -Philip
Last Updated on Sunday, 22 August 2010 15:18
 
Cougar v6 MoonBot Rover in Action PDF Print E-mail
Written by Dr. M. Judith Radin   
Wednesday, 18 August 2010 10:03

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The Cougar v6 MoonBot Rover takes on the first part of the MoonBots lunar course.  The v6 rover turns and maneuvers easily on the LEGO pip terrain.  It climbs walls, and locates its position on the lunar surface using the combined readouts of compass and proximity sensors.  Check out the home-made Omni wheels on the back.

Last Updated on Wednesday, 18 August 2010 15:44
 
Cougar Omni Wheels - Our Secret Weapon PDF Print E-mail
Written by Joey   
Thursday, 19 August 2010 08:30

Our first robot had great traction and could turn.  It had 4 wheel steering and 4 wheel drive.  But it was heavy, and it was not KISS.  It had an NXT brick, 3 NXT motors, a power-factors battery pack, and infrared link from the nxt, and 2 power factors motors.   

Our next 4 wheel drive tests showed that a robot with 4 wheel drive and good traction on all wheels doesn't like to turn.  And when it does turn it tends to warp the chassis while it's doing so.  It puts a lot of strain on everything.

What we really needed were Omni wheels like FRC & FTC sometimes use.  Too bad LEGO doesn't make omni wheels, right?

Well LEGO may not make omni wheels but the Cougars do.  These are our 2nd generation omni wheels.  The first ones were 2 pips smaller in diameter and didn't have rubber on the tires.  The were great for turning, and worked great if we were square to the pips on the field, where they could dig in.  But they didn't give us enough traction when climbing ridges or when at a diagonal to the pips on the field.  

These latest omni wheels are bigger, have rubber tread for great traction, and help us spin on a dime.  With these wheels the turns are predictable, because the front wheels pretty much control where we end up.  Yet with 4 wheel drive these wheels help us navigate the difficult terrain of the LEGO Moon. 

 

 

Last Updated on Sunday, 22 August 2010 15:17
 
The Evolution of the Cougar v6 Chassis PDF Print E-mail
Wednesday, 18 August 2010 10:28

Here's our v3, v4 (what's left of them, v5, & v6 chassis.

Note the longer arms we've gone to on the v5 & v6 chassis. The v6 chassis also switches the drive-train from chain to gears. 

 

 

Last Updated on Sunday, 22 August 2010 15:16
 
8/16/10 Tweaking the Cougar v6 Rover PDF Print E-mail
Tuesday, 17 August 2010 20:12
So, to all those who read this blog(not sure how many people that is Undecided) but here's what is new!:  We have for the most part finished our run!!!(HIP-HIP!)  This means that we can grab all but the southernmost yellow rings on the right side of the field.  We are tweaking the programming to make climbing out of craters easier to do, and more reliable.  Once we have that done, we will begin making timer programs as back up plans.  This means that the robot will keep track of the 3 minute run countdown, and if something should go wrong, leaving it with a short amount of time(too short to finish the run), it will head back to the starting ramp, so that we can at least double the points of the rings we already have.  Several of these back up plans will be programmed in to various points in the run as fail-safes.  Lastly, if the robot has enough time left, we may program it to decide based on time whether it thinks it should try to grab the last two yellow rings.  With not a lot of days left we are entering CRUNCH TIME!  It seems like our goals are now just within our grasp if we keep working as hard as we have been! :D
Last Updated on Tuesday, 17 August 2010 20:48
 
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FTC Blog

FIRST Tech Challenge
The official FTC Blog
  • Welcome to (or back to) FIRST Tech Challenge!
    Welcome to our FIRST Tech Challenge Family! 


    FIRST® registration is now open! It's the perfect time to register your team, ahead of summer break! Check out our streamlined registration process—a simplified dashboard with reminders. Two Youth Protection Plan (YPP) screened Coaches are still required to manage the team roster and begin meeting with youth; however, now Coaches and administrators can create teams, pay, and order products while Coaches are completing the screening process. 

    Our 2017-2018 season is going to be our most exciting season yet! If you have stumbled upon this blog post and have yet to sign up for a team, check out our Start a Team Checklist & Resources that will take you through the process of starting a FIRST Tech Challenge Team. If you still find that you need assistance in starting out, feel free to contact us here at FIRST by shooting an email to ftcteams@firstinspires.org. We also have a handy "Chat" function on this website that allows you to ask questions to our amazing Operations Team. 

    Once on board, you will find that this Useful Links document is your one-stop shop for everything you potentially will need to be successful for your season with FIRST Tech Challenge. Our goal is to not only provide these resources in one convenient location, but also make it easy to find everything you need.

    Your Local Affiliate Partner is also one of your greatest resources. These are your event organizers, your local FIRST contacts, and greatest advocates for your needs throughout the season and beyond. Check in with your Affiliate Partner and when applicable, check out their websites to find out what is happening in your area. Although we post all events on our FIRST Event Search Portal, registration for events are handled locally.  


    It's super important to look at the main topics of each Team Blast, they're sent out weekly and have critical information pertaining to deadlines, program information, and important season information. We have found that Teams who ignore Teams Blasts are at times at a disadvantage when important news is being sent out to the field. We cannot emphasize enough how important it is to check our Team Blasts. You can sign up for team blasts in our registration system or by emailing ftcteams@firstinspires.org. You can also check back in and read all of our FIRST Tech Challenge Team Blasts on our Team Blast archive page


    Each FIRST Tech Challenge Team is unique. From the composition of the type of students who have joined, to the challenges they face when moving throughout the season. These resources are the main topics that you will find necessary. However, we do recognize that this may not cover every circumstance. For that, we strongly encourage Teams to start exploring the FIRST Tech Challenge Forums. Most notably our:

    • Game Q&A Forum - post questions and read clarifications on game rules. Our Game Design committee monitors this forum and your answers will come directly from them.
    • Technology Forum - extremely helpful when building your robot. Post your tech-oriented questions here.
    For the most up to date news on FIRST Tech Challenge, make sure to connect with us through our Social Media pages. We are not only posting on what is happening in the community, but also any important announcements. However, our number one way of communicating any important updates or changes will be conveyed through our Team Blasts. We send out these weekly communique to your Main and Alternate Coach/Mentor. If you are not either of these two roles, but want to stay current with FIRST news, sign up in Team Registration on the www.firstinspires.org site or email ftcteams@firstinspires.org


    Start exploring our FIRST Tech Challenge website and social media channels and do not hesitate to reach out to us here at FIRST with any questions. We've got something a little different and exciting heading your way this week! Keep your eyes peeled on our social media channels. And you'll want to make sure you mark your calendars for the FIRST Tech Challenge Official Season Kickoff on Saturday, September, 9th!