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Line Following Competition Testing and Discussion

Come meet with us at Fuddruckers in Mira Mesa after work to test your line following robot for the October competition.

Or just come and discuss robotics. Maybe bring a robot for "show and tell".

Good burgers and beer, too!

Click on the Discussions above to discuss this.

Join or login to comment.

  • Jason

    Ok, got everyones number so I dont miss you guys next time. Ordered my parts this morning, so maybe I'll actually a robot to race nxt time!

    October 2, 2012

    • Alain D.

      Ho Ho! What did you buy Jason?

      October 2, 2012

  • Jason

    I came, I saw no one, ... I left

    October 2, 2012

    • Alain D.

      Sorry we missed you Jason! The band was playing loud. So Gary and the group had moved to the outside. We ended up robot-racing in the back of Gary's truck in the parking lot. Next time we'll need a line-following line for the humans to find each other!

      October 2, 2012

    • Gary S.

      Dang, Jason, sorry. We were there, just sitting outside. Call me next time at[masked] (not text).

      October 2, 2012

  • Paul W.

    I now have parts in hand to build a lap timer for the competition. There are still some design details to work out.

    October 2, 2012

  • Gary S.

    Ah, you are asking about "The Racing Line". The most important aspect of minimizing your time around a track is to maximize your speed on the straights.

    To do this, when you know a long straight is coming up you want to "late apex" the corner at the beginning of the straight, accelerate as much as possible, then "late brake" at the end of the straight.

    There are other factors, too, but this one strategy is the biggest bang for the buck in racing!

    September 29, 2012

    • Alain D.

      oops... hit return before finishing tweaking this text... never mind... hope it is understandable... lol

      September 29, 2012

    • Gary S.

      You've nailed it - you want to make the straights as long as possible since that is where you carry the greatest speed for the longest time. And you're also right that the beginning and end of the straight are two independent variables, and what you do at the end depends on what is coming up next.

      September 29, 2012

  • Alain D.

    I thought some of my posts as well as your got lost again Gary, and I was getting frustrated with this"buggy" website until I notice the "View all 9 replies" link !! :-)
    Nothing is getting lost, just collapsed....

    September 29, 2012

  • Alain D.

    Since we have several real-life car racers among us, I would like to draw on your expertise!....
    Suppose our line-following racing robot is actually more concerned with the racing then with the line-following: suppose the robot somehow has a perfect knowledge of the track as well as a perfect knowledge of its position on the track, suppose the robot also has totally accurate control of its steering and propulsion.... then my question is:
    in this situation, what would be the ideal trajectory and speed around the track to achieve the fastest run ?
    We'll further assume that the robot is allowed to drive slightly off the track as long as it remains at all time within a certain distance of the track: lets say center of robot within 3 inches either right or left off middle of track.
    What do the pilots say ?

    September 29, 2012

    • Alain D.

      Try Shift-Enter to get a new line

      September 29, 2012

    • Alain D.

      I found this: http://www.drivingfas...­

      September 29, 2012

  • Alain D.

    Actually, never mind. Little Robocist friend is not ready to join us. So Tuesdays will good for me too for now (as well as Mon Wed Fri).

    September 27, 2012

    • Jason

      Cool

      September 28, 2012

  • Alain D.

    What about Monday and Friday ?

    September 27, 2012

    • Jason

      Both nights ok with me

      September 27, 2012

  • Gary S.

    How about if we try different nights each of the next three weeks leading up to the competition. How about Tuesday, then Wednesday, then Thursday at Fuddruckers?

    September 27, 2012

  • Jason

    Hey Guys, I can't do Wednesdays because of a regular iOS meet I'm assistant organizer with (played hooky last night so I watch the presentation). Pretty much any other night would be okay for me.

    September 27, 2012

  • Gary S.

    Wednesday is ok with me, how about with you, Jason? Or we could continue with Tuesday this week then do Wednesday the next week?

    September 27, 2012

  • Alain D.

    Hey Gary, if it is not too late: I would prefer Wednesday this week, as I would be able to bring along with me a young promising robocist that night.

    September 27, 2012

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