Improving the EV3 Competition Robot by Mic Lowne Pro Preview

In Episode 58 we introduced you to an LEGO Mindstorms EV3 Modular robot. Mic Lowne wrote to us and had that robot remade, because it used too many blue lego pins and could not be build using one EV3 kit.

  • # 100
  • 09 Aug 2015
  • 6:08

Your turn

Did you like the remade robot? I would love to hear your suggestions for improving the copetition robot even more!

Let us know in the comments below!

English

1 00:00:08,040 --> 00:00:12,960 In Episode 58 we built a competition robot. The robot had a flaw and it was 2 00:00:12,960 --> 00:00:17,010 that you couldn't build it using a single LEGO set because it used too 3 00:00:17,010 --> 00:00:23,520 many long pins. Mike Clone wrote to us and made a competition robot based on our 4 00:00:23,520 --> 00:00:27,788 construction and today we're going to compare them. 5 00:00:32,946 --> 00:00:34,962 Both robots are fairly the same and do well on the field 6 00:00:34,962 --> 00:00:39,020 but have little differences. For instance if we 7 00:00:39,020 --> 00:00:45,380 take a look at Mike's front robot it has a wider piece and does not have this bar 8 00:00:45,380 --> 00:00:52,850 here which protects the light sensors from the surrounding light as you may see here. 9 00:00:52,850 --> 00:00:59,420 As a matter of fact this makes the robot maneuverable, it can go through obstacles 10 00:00:59,420 --> 00:01:06,080 because it does not have this piece here where as our robot would get stuck with 11 00:01:06,080 --> 00:01:11,450 the obstacles. If we take a look at the robots from the side they're almost 12 00:01:11,450 --> 00:01:19,120 identical except for this piece here that is missing, the skirt. If we turn the 13 00:01:19,120 --> 00:01:28,100 robots at the back Mike's robot does not have this piece here which helps him gain 14 00:01:28,100 --> 00:01:35,750 maneuverability over our robot. His back piece is stronger whereas our piece 15 00:01:35,750 --> 00:01:43,040 wiggles back and forth and if you attach some attachments on the back they will be 16 00:01:43,040 --> 00:01:51,060 more stable. On our robot we have this here mechanism for the cable management. 17 00:01:51,060 --> 00:01:57,730 It is always good to manage your cables. Whereas on this robot here you cannot add 18 00:01:57,730 --> 00:02:03,190 this mechanism because there is no space but maybe you can get your cables from 19 00:02:03,190 --> 00:02:05,501 here and it will be okay. 20 00:02:06,740 --> 00:02:11,910 Another thing you should know is weight. Now we're going to weigh the robots and 21 00:02:11,910 --> 00:02:19,810 see the differences. First it's Mike's robot let's put it like this. Mike's robot 22 00:02:19,810 --> 00:02:31,641 weighs 739g, next we're going to put the FLLCasts' robot on the scale and the 23 00:02:31,641 --> 00:02:42,708 FLLCasts' robot weighs 745g, that is a difference of 7g, it's not much but it's 24 00:02:42,708 --> 00:02:48,664 something you should know about. Going over obstacles is the next thing we're 25 00:02:48,664 --> 00:02:54,610 going to talk about and as we said before Mike's robot does not have bars here, the 26 00:02:54,610 --> 00:03:01,485 FLLCasts' robot has this part and on the front we have this part that guides the 27 00:03:01,485 --> 00:03:09,800 sensors, that does not let light interfere with the sensors but Mike's robot does not 28 00:03:09,800 --> 00:03:15,134 have it here so Mike's robot can go over obstacles more easily but we have 29 00:03:15,134 --> 00:03:21,920 problematic parts when we turn the robot. This thing here sticks out a lot and can 30 00:03:21,920 --> 00:03:28,943 get stuck with some obstacles that you may want to go over them whereas here 31 00:03:28,943 --> 00:03:36,267 everything is flat and there's nothing you can get stuck. If you go like this my 32 00:03:36,267 --> 00:03:42,448 finger gets stuck here whereas on this robot you can slide more or less over the 33 00:03:42,448 --> 00:03:49,542 obstacles. As we have the robots turned over we're going to talk about these parts 34 00:03:49,542 --> 00:03:55,785 here. These two parts and these two parts and we have them here on both robots so 35 00:03:55,785 --> 00:03:59,677 these parts here are turned 90 degrees. 36 00:04:01,689 --> 00:04:08,330 Let's try and break Mike's robot first. Pulling it is impossible and with twisting 37 00:04:08,330 --> 00:04:16,387 you break the construction on the back. The FLLCasts' robot there is some gap here 38 00:04:16,387 --> 00:04:23,211 generated when you pull but it is fairly hard to break it and if you twist you will 39 00:04:23,211 --> 00:04:30,169 break the construction in the same place. It does not matter if the bars are facing 40 00:04:30,169 --> 00:04:38,220 right side up or 90 degrees. In conclusion both robots are very good. They have some 41 00:04:38,220 --> 00:04:45,140 differences, for instance Mike's robot here on the back is more stable and our 42 00:04:45,140 --> 00:04:53,350 robot here moves so it is better to attach on Mike's robot. On the front Mike's robot 43 00:04:53,350 --> 00:04:59,440 does not have this skirt here that protects his light sensors from the 44 00:04:59,440 --> 00:05:05,680 outside surrounding light. The FLLCast s' robot has a problematic pin here which 45 00:05:05,680 --> 00:05:13,420 will get stuck over any obstacles that it would try to overcome. The main problem on 46 00:05:13,420 --> 00:05:19,500 the FLLCasts' robot is that you do not have enough blue pins to build it. For instance 47 00:05:19,500 --> 00:05:27,640 here as you can see they are sticking out and we cannot use them properly we could 48 00:05:27,640 --> 00:05:38,780 have used the black pins instead of the blue ones and friction over nonfriction in 49 00:05:38,780 --> 00:05:47,790 Mike's construction. He has used nonfriction pins where he did not need 50 00:05:47,790 --> 00:05:56,640 extra stability, that left him with more friction to build more with. Thanks for 51 00:05:56,640 --> 00:06:00,600 watching, if you have ideas submit them down below in the comments section and 52 00:06:00,600 --> 00:06:04,671 don't be shy to let us know what you think about this video. Bye.