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 Organizations / Canada / rtlToronto / 8746
    rtlToronto15 January issues —Calum Tsang
   Hey folks, rtlToronto15: In light of someone calling rtl15 sumo on pipes, I was thinking about turning rtl15 into an actual nonlinear path. Meaning, instead of having only one true path, having the other joints forming an entire grid. Every joint (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Larry Pieniazek
     (...) Would this mean then that robots would need to be able to lift guidewheels to clear branching points? That's how I read what you say about "grid", that there are tee/Y/cross pipe parts and not just bends. (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Calum Tsang
      (...) Yup. That's always been the deal with rtl15, to be able to traverse T or Y shapes. But previously, the rtl15 competition was to be one true path and the other path would always terminate. I'm suggesting we don't terminate, but instead offer (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Jeff Van Winden
      (...) So Calum you are suggesting that the shortest path would be the marked path, but if a robot goofs up, and turns the wrong way, it can continue, and take a longer, route that will still lead it to the critical path. Calum, are you being (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Dan Boger
       (...) Wouldn't it be useful, since you could avoid the other robot, and not have to bash your way through it? (...) Mmmmmm, sleep. "I too will go home, for sleep" :) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
      
           Re: rtlToronto15 January issues —Calum Tsang
       (...) That's the other benefit of having secondary paths-not reducing the game to sumo. A single decision up front to go onto an alternate path allows a competitor to avoid a sumo like game. Calum (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Calum Tsang
      (...) Sad thing is I learned CPM techniques in first year, but the best implementation I've ever seen is in our GPS lab, where they put on the whiteboard whoever's behind the 8 ball. It gets people working FAST, and no need for CPM charting either. (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Derek Raycraft
      (...) I think you've got a good idea here. If we build it right, we wouldn't have to rebuild it to have a different maze for subsequent rounds, we could just mark different paths through the maze. I don't like the idea of having more then one (...) (21 years ago, 26-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Rob Doucette
     (...) As Calum announced at the BrickFest event, (I believe) the plan for Pipe Racers Pro is the addition of y's and tees. -Rob. (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Iain Hendry
     (...) Do you have any idea of how complex that would be? :) It would look cool (like a Borg cube), but I think altogether impossible. People have enough trouble doing 2-D mazes (micromouse), and you're talking about adding a third dimension. I think (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Chris Magno
     (...) Calum, lets just leave it at a "maze" and mark a correct path. with all the T's and Y's they could very well lead to a finish, but we have one "proper way" lets not encourage the multi-path. if a multi path works out in the building of the (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Iain Hendry
     (...) And Rapid Duck Assembly™!! :D Iain (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Calum Tsang
     (...) I'm actually REALLY looking forward to a game like that. Put those 9751 Dacta Control Labs to some use. I think everyone has one now. Calum (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Dan Boger
   (...) (hope you don't mind a lurker commenting :) Wouldn't you have to mark the "correct" way on each joint, and have different markers for the two sides to follow? One robot would follow the "red" markings, while the other follows the "blue"? That (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —John Gerlach
     (...) Or, make it an 'out and back' race, where each robot would have to take a different path on the 'back' portion. JohnG, GMLTC (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Iain Hendry
     (...) Oh! Oh! And while it's doing that, it has to play the most accurate rendition possible of "What a Girl Wants". Iain (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Larry Pieniazek
     (...) I *think* that's Iain's way of saying "the different path requirement is not really a good idea" but I'm not sure. :-) I'm still wondering about the joint question... didn't most of the bots at BF have rigid guidewheels that would be (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Iain Hendry
     (...) Forgot the smiley. :) (...) I think the joints are going to be very hard. The only thing I could think of doing, was have the robot somehow open on one side... and have all the drive wheels rotatable so that you could either a) drive your (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —John Gerlach
     (...) That's why the rest of the world just sits back and *watches*, while the genius Lego builders (& programmers!) of RTL Toronto come up with amazing solutions to problems the rest of us would be scared to even attempt... Me? I'll stick to (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —David Koudys
     (...) Backing you up, JohnG Go Trains!! Dave K -the preceeding announcement satisfied many criteria--score 1 point for Magno-Ball, showed my unfailing interest in trains, stayed 'on-topic' (at least, as on-topic for rtlToronto as one can be), and (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Chris Magno
    (...) Dan, at the last dinner (which you missed) :) derek pointed out that any marking is pointless cause you don't know from which angle the robot is reading the mark. at a simple "T" a read stripe means turn left.... BUT if the robot reads that (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Dan Boger
     (...) Hey, INS was getting possessive, and didn't want to let me leave the country. Now that that's fixed, maybe we'll visit for the next event :) (...) Maybe I'm dense. Actually, forget the maybe - but here's what I'm thinking of (bad ascii art (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —Chris Magno
      (...) I blame the ascii art. :) this is the problem I see. (more ascii art) 1 2 ---...--- I red I I I 3 OK, put a robot at the base of the T. (number 3) as it drives up the pipe, it reads the RED tape. so it should turn left to the # 2. so far easy. (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Iain Hendry
       (...) Oh, that's easy - just use a four-bit BCD TapeCode, assigning a 3-digit rotational position about theta to find the correct pipe exit point. Piece of cake. In addition to playing "What a Girl Wants", all robots must bake a cake, and hop on one (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
      
           Re: rtlToronto15 January issues —Calum Tsang
       (...) Look, we've been over this before, no non Lego parts, especially not the HiTechnic Christina Aguilera module. Sheesh. Calum PS-if we tape it pre T and single true path, I think it's hard, but not excurciatingly hard. Basically it's time for a (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Dan Boger
       (...) Ah ha! Here's where we differ - I don't see the problem :P You read the markers are you approach the T joint, and expect to know which way to go with the knowledge aquired. My markers are _after_ the T, and they just tell you if you're going (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
     
          Re: rtlToronto15 January issues —Calum Tsang
      (...) Okay, what about this: 1---...---T------2 ^^^| | | | 3 Entering joint at 1, white tape is ONLY on the half of the pipe which has the correct path 3. We tape around 180 degrees of the pipe (ie, a C shape). This also allows the robot to align (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
    
         Re: rtlToronto15 January issues —David Koudys
     (...) I like it. The original thought was that before each joint there would be 1 strip or 2 1 strip means 'go left' (as left as left can be in a 3 d grid), or 2 stripes means go right (again, same). As pointed out, however, which way's left or (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —David Schilling
   (...) I mentioned the following solution at BrickFest, but I'll post it here again: If you were to combine the Canadian pipe and the US pipe you have, another solution is to have the 'correct path' be all black Canadian PVC, and all the 'wrong' (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
   
        Re: rtlToronto15 January issues —Calum Tsang
   (...) Okay, except it looks like most people will have ABS black pipe. (...) That's true :) The deal with that is that you have to be clear of the joint to know you're on the right path. Without a "path checker" out front, there's a 50% of chance (...) (21 years ago, 25-Aug-03, to lugnet.org.ca.rtltoronto)
 

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