Robotics Final Summative

Final Robotics Summative

Introduction

For my robotics I decided to make a lego claw machine for my final summative and it wasn’t that good of a project. This is my final robotics summative. [1]

Collaborative Process

For my collaborative process, I didn’t work with anyone and was a solo project, and I feel like if I had someone else work with me, I could’ve had a better chance of finishing this project because the planning was easy but the I had to build a lot which took up a lot of my time. So basically I don’t have anything to say for my collaborative process as I worked by myself.

Idea Development Process

In the beginning I was hoping to make a robotic hand that could hold anything but then I realized that was too difficult to make and then I decided to make a robotic claw like the ones you’d find from disneyland but then I realized that was quite easy so I decided to make it a little bit more challenging by making a lego claw machine. In the beginning I wanted to challenge myself and I decided to make a whole claw machine with cardboard too and a coin slot which you can use to use the machine, and a joystick but in the end all I ended up making was making the claw be able to move up down left right and have claw life up and down and I couldn’t even input the program in.

Technical Process

I first tried making my claw machine, I made it completely out of lego [1], then I realized that the claws and the motors couldn’t withstand the weight so I decided to make a part of it out of matrix and I needed some of the lego for the motor. Then I made the claw rope. I first tried a normal rope and it was hard to put all the string to on the lego piece and would slip off and I started making the rope with lego and it was quite successful. I basically made all the motors [2] and all I needed was the base. I started building the base to hold it up. I collected all the materials to build it and to sustain it and the next day they were all gone. So I went on to just use the straight metal parts instead and it could not sustain itself. Until this day, I always went on break and lunch to work on my project but I guess I got fed up and gave up with the project. So when I came back the next few days, the lego was broken because that was a weak point [3] and it was holding almost all of the structure falling apart. Then I was sort of stuck. There were no materials that I could use and I got these things in the photo and I tied them with a string onto the claw machine [4]. Once I was done with that I had 3 days left and I had to make sure that I finished the project I had to finish programming, wiring, programming for the matrix motors and I think it was just too much and I could complete it, but I just didn’t have enough time to make it work. The motors here were very wobbly and could’ve fallen very easily and I needed to improve and I sort of gave up and I’m currently writing this blog post.

1. All the parts that I made out of legos before I realized it wouldn’t work

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2.

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3. The lego with the strain of the whole building

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4. This made the building much more stable

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Concerns or Celebrations

This project was almost full of concerns, that I made the whole thing out of lego and I had to make it all over again with matrix. Which took quite a bit of my time, my motor which had the lego claw machine is very fragile and still is to end of the day. I also lost all my materials when I put it in my lockers, I also had almost no materials. New materials came though on the day when I stopped working. The whole structure was very fragile. I didn’t have enough time too.

Look at images above.

Knowledge I Can Transfer

I honestly think that I was just unlucky with the materials part, but I think that I should prevent that from happening if I get the materials first and keep it hidden or I should’ve locked my locker. But the key was broken so I don’t think there was any point to it. Again I think that I should’ve been more prepared to this and planned more well and thought more about the errors that could’ve happened during this project.

Final Project

This was how my project looked like in the end of the project.

Robotics Formative Blog Post

Hello. My name is Simon and this is my robotics formative. There was no collaboration in this project as I worked by myself. In the beginning I had a idea for a claw, but more like a hand that would grab on to something of any shape and would sort of lock on to that state and pick it up. Then I realized how difficult that idea would be so I decided instead to make a claw machine and I needed to find how to make it. I looked at real claw machines and I decided how to make my claw moving. It would look something like this in the end. Next I would install a EVE and the motor onto the claw, which will be dropped down by a lego rope. That’s currently it for now. I hope I can make this machine wireless so that I don’t need to connect all the buttons. The technical process. So basically how this works is that there will be 2 gears, which will allow it to go left or right. To those 2 gears I will have another smaller one which will allow it to go up and down. Then on the smaller one, there will be another motor which pulls in and out a rope which will pull down and up a claw which will close and open. I’ll design a claw machine so that you have somewhere to drop the prize. Making the small motors were much easier than I thought. One of the challenges was that I decided to make most of the motor out of legos, without thinking properly and luckily, not too late behind I realized I should make it out of the metal. I realized I should’ve thought more before making my project as switching from lego made me lose a lot of my time.

How My First Model Looked Before I Realized It Was Too Weak (Long Motors)

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How I Started Changing the Entire Look When I Realized Lego Was Too Weak (Long Motors)

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Small Motors, and How the Rope Will Be Pulled

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Robotics Pulley Reflections

For my collaborative process, I worked with my partner Erik Kang, and it wasn’t the best collaboration we could’ve shown. While we did this, we gave each other roles that we should do, such as build things. For example, I would build the wheels, and Eric would work on the strucutre, but the end was not so great when we planned things. When I would say please work on this part during break, or we’re not going to get it finished, I would hope he finished the work so I could continue mine, but Eric wouldn’t show up at those times, he also in the end, we decided roles, and he would work on the coding for the automated machine, and I asked him to work at home for it but he took a week and a half to finish it and it was quite frustrating, but when we were both building, we were quite effective at building. Idea Development Process In the beginning, we thought of making 3 short empty boxes and place the last one at the edge, and the pullies were set out like this. But then when we actually looked at our resources we realised that we didn’t have enough resources and we switched our idea to this. Then we put it as planned and did a stupid mistake where we realised it would be extremely difficult to put the string through so we had to make it into a straight line. We also realised that the string was sliding off, so we got rid of the tires so that the string wouldn’t slide off. Maybe our design was bad, but the string was very difficult to pull and was hard to do when we tried pulling on the strings and they overlapped each other creating friction so I removed 2 wheels so that there would be less strings overlapping, next we also realised that the line was bending when pulling on the rope and we decided to put some support on the lines by putting legos on the bottom of the lines so it wouldn’t bend as much. Then when we pulled the line it actually worked. So when we built our motor, we removed the top wheel and replaced it with that and how it worked was the motor would pull the string roll it up around a plastic, we realised that plastic also bent, so we put a little lego on the plastic so that didn’t bend either. I was concerned that it wouldn’t work because we didn’t plan very well, I was also scared if we could even get the bottle to go up even if the plastic didn’t bend. Next time I think I should plan out our project more carefully, as we just went with what we got and didn’t plan too much.

https://drive.google.com/a/hkis.edu.hk/file/d/0B7vqtic7182ydjNLSWZPa25aLUU/view?usp=sharing

Lego Car Reflection

Photo on 31-8-15 at 9.00 amPhoto on 31-8-15 at 9.21 am Photo on 31-8-15 at 9.21 am #3

In this project I made a car that would not break from a fall and would go straight and go far. In the beginning I though of making a, small car, with 2 long sticks and small wheels so that it could get rid of all the weight, but because it was so light, it would easily turn and wouldn’t go straight even if I made the wheels even. Then I thought of a bicycle, and I got big wheels, hoping it would go farther, as when a bicycle has bigger wheels, it would go farther and I thought it would help. This did make it go straight but the wheels were too small for the stick so. I made it like the picture above, but I had way too many extra parts. I wasn’t able to get a photo but after removing the extra parts it is basically the photo on the top. We also had to make the car to be able to make a drop without breaking it, so the big wheels came in handy again, as they were rubber, and could handle the fall from any angle, as the wheels were covering it. I also made the car go straight by making the wheels completely even, but when we had no more time to improve the car and change it, I tried throwing the car very hard and the wheel came off, making the car tilt right before we did the little competition and failed, but I would still say it was a good car. In this I learned that you shouldn’t try to change a project right before it is due, and not knowing the results and that I should test multiple results first and choose the one that works best.

Robots

In this class I’d like to build a soccer robot. So there’s a score system and can be controlled by multiple players. So it would be cars that would push the ball in to the field.