Created by Karl Wendt.
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- at2:53, Karl mentions that the switch will overheat and "not work". I'm curious as to why it ceases to function. Is it because the heats up and melts the spring or other metals?(2 votes)
- The switch will make a short circuit and create a lot of heat and eventually make the batteries useless.(3 votes)
- is this the most simple bot in the 3 that they created?(3 votes)
- yes it is the same one which the 3 grade made but they added wings and a tail i think we will attach that too.(1 vote)
- what happens if the hot glue gets inside the battery holder from those little hole in the middle of it and the battery won't work?(1 vote)
- The hot glue is easily removed with a putty knife, if that is a problem cover the holes on the inside of the holder with a piece of tape. That will prevent any hot glue from entering the battery holder and possibly gluing the batteries in the holder if you are using them as weight to aid the assembly process.(2 votes)
- I have been trying for something like 20 hours to get this kind of thing to work with a nine volt and six motors, however, whenever I press the antenna one side of motors speed up and the others stop. I think this is becuase I am only running one battery, so it can not run booth motors simultaneously in reverse. Any ideas on how to fix this?(1 vote)
- When you press the switch I think only one side speeds up in order for the robot to turn. If you don't press the switches both motors should go forward.(2 votes)
- nice videos i luv the videos but how do u get the tools?(1 vote)
- There is a list at the beginning of this section that includes where to get the tools. Some you may need to order online, others you could pick up at home depo, aces, radio shack and similar places.(1 vote)
- what happens if you do the wiring wrong?(1 vote)
- Where exactly can you get those wires?(1 vote)
- There is a list at the beginning of this section that includes where to get the wire. you may need to order it online, but you might be able to find it at home depo, aces, radio shack and similar places.(1 vote)
- I'm having a bit of trouble visualizing this mess of wires. Is there a link anywhere to the circuit? Like, written out with the symbols?(1 vote)
- How would you wire it if your just trying to lite up a LED not the motors and be able to turn it on/off with the sliding switch? And all i have are one of those sliding spdt switches, LEDS (with resistors), breadboard, jumper wires, 9v battery and and 9v battery clips.(1 vote)
- You would connect the 9v battery clips with the battery attached to the switch and then the LED. Just make a simple circuit.(1 vote)
Let's connect the switches to the motors. The way we're going to do that is we're going to take a piece of this blue wire, and we're going to strip off just a little bit at the end. And we'll loop the wire through the switch and take our needle nose pliers and crimp it. Like that. And then we can take the other end of the wire, and we're going to run it through this part of the motor, right here. And so to do that, we'll trim off some of the wire. And then we'll take our strippers and cut off the end. We're going to do the exact same thing on the other side. And let's heat up our connections. There we go. You want to make sure that solder flows completely over the connection. All right, so we have all our connections there. Let's double check our switches. Good, switches still work. Again, because if we hold the soldering iron against the switch too long, it can overheat the switch and cause it to not work. So we want to make sure that we didn't do that. OK, so we've got our motors in place. Now let's take our next connection. And let's make our next connection a green wire. So we'll take this guy, and we're going to connect these two motors together. So we'll do that by running it through with one end of the wire. And then the other one, we're going to let the wire stick out a little further because we're going to want to tie another wire to it. So we'll just go like this There we go. So we've got a lot of extra wire. So now our green wire is there and in place, ready to go. Ready for some solder. But before we solder it, we're going to make another connection to it. And so the next connection we're going to make is, we're going to connect a yellow wire to the green wire on this side right here. And it needs to be about two inches long, maybe a little shorter. So we'll take these two wires, and we'll twist them together. Like that. And we can trim off the excess there, we only need it-- together like that. And then this wire is going to connect to a switch that goes here. It's going to connect to one of these switches. We've already bent one of those single pull-- one of those throws out of the way, because we only need a single pull and a single throw. So we're going to connect here. And the way you can bend those, in case you were wondering, is you just take your needle nose and grab the throw. And just bend it right out of the way. Now, make sure you only bend the one on the ends. Don't bend the one in the middle, because you need the one in the middle. So we're going to connect to that. And let's put the switch in place first. So put a blob of hot glue there. And you want to push the switch down on the hot glue. But make sure not to cover up the switch mechanism so it can still slide back and forth. And also don't to cover up the little single pulls or throws there. OK, so we want to make it-- it's going to need to be about this long. Let's go ahead and solder these connections here. So we'll solder these connections since they're already ready to go. Tin my tip. There we go. Our wire. And we'll strip off just a little bit on the end. And we can bend this wire around in a loop, like this. Like that. And then connect it to our switch. OK. There we go. Now those wires don't like to stay in that location very well. So now I'm going to take the other side of the yellow wire, and I'm going to strip off some insulation on the end, right here. I'm going to make another loop. And I'm going to try and connect that to the other side. Now, it looks like the hot glue has come loose, and that happens from time to time. So if that happened, that's OK. So when you put the wire in through the pull, one thing that can help sort of hold it in place is to bend it just a little bit, so that it kind of crimps the wire and holds the wire in place. It's really hard to make sure that these two connections do not touch, but it's really important. Because if they touch, then this switch won't work. OK. So that one fell out, but that's OK. We can put it back in. All right, so now we have our switch connected. And this part, I think, I'm actually going to use the third arm to hold, because it's really hard to grab it. And we'll hot glue it back in a minute. You can see these wires just love to pop right out. OK, so we've got a good physical connection. Now let's make our connection with the solder. So we're going to tin the tip again, just a little bit there. Clean off the excess and make our connection. In that case, I got solder on the soldering iron but not on the metal. So I need to heat the metal a little bit more. There we go. So, see, those two need to be completely separate. So now we can actually put a lot more hot glue on it and make sure that it stays in place. So we'll put just a little bit of hot glue behind it-- or underneath it, I should say, like that. And this is a place where you really got to be careful, because it does want to move around. So, just hold it. Hold it on the top like that. Make sure you don't get any hot glue on your hands. So once you've got that in place, then what you can do is you can come back in and you can actually hot glue this whole area in here. And that will provide a lot more holding power. It'll keep the switch in place and also help to make sure that those two yellow wires do not touch when they're not supposed to.