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Electrical engineering
Course: Electrical engineering > Unit 7
Lesson 3: Spout Bot without Solder- The goal of Spout
- Parts list
- Tool list for Spout
- Tools and parts to build a Spout
- Connect the SPDT switches
- Attach the LED eyes
- Wire the SPDT switches
- Create the motor mounts
- Secure and wire the motors
- Install on/off switches
- Connect the LEDs to an on/off switch
- Attach Spout's antennae
- Add Spout's tail
- Give Spout some grippy feet
- Spout in a maze
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Connect the SPDT switches
Created by Karl Wendt.
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- What precautions should be taken in order not to get burned by the hot glue?
Is it hot enough to burn? O_o(6 votes)- It is not enough to burn wood but it can burn your finger just be prepared with a container with water in it (needs to be really cold add some ice in it).(5 votes)
- Can you name some shops on where you can buy some of these items?(3 votes)
- Radioshack, Best Buy, try hobby stores or craft stores.(5 votes)
- how much hot glue u have to use(1 vote)
- If more sophisticated wiring will be done on the switches later, isn't it easier that FIRST do the wiring on the switch THEN glue them later? After glued there are less space which makes wiring harder.(1 vote)
- How long does it take for the hot glue to cool and set?(0 votes)
- it depends how much you put, a dime size should cool at around 30sec. to 1 min
a quarter size should take from 1-5 min(1 vote)
- how can you get a double a battery holder?(0 votes)
- You could take a battery holder out of an RC remote.(0 votes)
- What if I don't have hot glue gun?Is there some alternate of hot glue gun?(0 votes)
- There is a version using soldier. But if you don't have either of those, you need to buy one of them. Oh, and here's the link for the Spout with soldier : https://www.khanacademy.org/science/discoveries-projects/robots/Spout-Bot-with-Solder/v/parts-for-spout(0 votes)
Video transcript
Okay, so in this video, we’re going to insert the AA batteries into our battery holder. The negative side goes against the spring, and the positive side goes away from it. This is going to allow us to hold our battery holder in place a little better, because it will add some mass to it. And it will also give us the power we need to test our circuits, and eventually run our bot. So because power can now flow, we do want to separate those wires so they don't short out. And now we're going to put a blob of hot glue down in the corner – the same corner as the red and black wires are close to. And the blob should be about half the size of a dime. So we’re going to take our single-pole-double-throw switches, and we’re going to set them at about a 90° angle to one another, so that they’re lined up like so. And we want the contacts at the top of those single-pole-double-throw switches to be touching one another – the contacts that are on the inside there. Now we're ready for the next step.