Tag: Design

Science 9 Energy Project Create / Improve

Posted on by William

Day 1:

We start brainstorming what type of helicopter we should be making. We decide to make a CH-47 Chinook, and I begin to prepare materials.

Day 2:

Gavin finished the design, I found some motors, and Alex found propellers. We just started making our product. Also, 3D printing is completed. We begin to assemble our propellers and attach them to the motor.

Day 3:

We finished making the motor part, and the laser cutting of the skeleton of CH-47 is finished. Gavin and Alex assembled the first motor onto the skeleton. I did some soldering of the motor and picked some good-quality 9-volt batteries.

Day 4:

We assembled the second motor-propeller system to the skeleton. After a few tests, we don’t think the helicopter will lift up, but there is no time left for us to change that day.

Day 5 Last Day:

We tried our best to make two new propellers. But the helicopter is still struggling on lifting up. We can’t find a better motor in such a short time.

 

Improve:

I think we can choose a more potent motor. The major problem for our helicopter is that the weight is too much for our motors to function. If we can solve that, I think there is a chance that it can fly.

 

Science 9 / Develop and Plan

Posted on by William

DEVELOP & PLAN 

Materials:  

Required: 

  • Electric soldering iron
  • Solder wire
  • Glue gun/Super glue
  • Lithium Battery
  • 2 brushless motors (at least)
  • Signal transmitter (2.4G)
  • Cardboard/Pressed plastic
  • Popsicles/Plywood

Optional: 

  • Light-curing 3D printer (if we need to use Resin)
  • Controller (if we have time)
  • CNC machine
  • Laser cutting machine (if we need to use metal or cardboard)
  • LED lights (for flex)
  • Mother board
  • Plastic film

Techniques: 

Ability to debug motors 

(Ability to) Use of soldering irons (soldering techniques) 

(Ability to) Use of hot melt glue gun 

(Learn how to) Create lift using propellers 

(Optional) Use of Ultimaker Cura 

(Optional) Use of 3d modeling software such as fusion 360 or else 

Plan: 

  • Gather materials (Listed above)
  • Build different types of propellers based on research
  • Test how much weight twin propellers can lift (Using a piece of cardboard and weights)
  • Design and distribute weight of the helicopter based on the findings above
  • Start laser cutting pieces
  • Connect electrical appliances
  • Build outer shell
  • FLY!

 

 

Science Project Grade 9/ Define and Inquire

Posted on by William

This task asks us to make a machine or tool that can transfer energy.

 

Idea 1: Gun with short-stroke gas piston (Gun is also considered an energy conversion device.)

However, the Chinese standard of identifying a “real gun” is if the muzzle has a kinetic energy of more than 1.8 J/cm2, and if you want to make a short-stroke piston, it needs too much more kinetic energy than this, so it is not possible.

Not possible: Breaking the law…

Gas-operated reloading - Wikipedia

 

Idea 2: Flying machines, such as biplanes or helicopters (scaled down)

It is possible but super hard: it requires 3D Modeling(fusion, etc.), 3D printing(Ultimaker Cura), Programming(Java/C++), Designing(Blender, etc.), Circuit Design, and a lot more. The money to buy materials may be several thousand RMB.

Possible: Highly difficult

重型运输直升机传动系统构型与技术特点- (国内统一连续出版物号为CN10-1570/V)

 

Idea 3: REAL Rocket (2-stage rocket or 1-stage rocket)

Possibly, But if you want to play for real, you need propellant and an engine, and these civilians can hardly buy. But there are other ways to consider.

Possible: Most Difficult

Rocket Parts

 

Idea 4: Water Rocket

It is considerable. There are no items you can’t buy, nothing illegal, and it’s safe. All that is needed is water, a container, and some 3D-printed parts.

Possible: Not hard

 

Final Idea: Helicopter (In idea Flying Machines)

Alex and Gavin also want to make a helicopter. It’s hard, but we are willing to try. We grouped up.

Product Design: Leather Design Reflection

Posted on by William

Picture:

 

Questions of project:

I. How does ur final product solve your initial problem?

A: YES! Past few weeks I start using my mouse but I need a mouse pad to let mouse fully used, but it’s bothering me to bring a mouse pad. After I made this product I can totally not bring my mouse pad and use this product.

II. If you could start over from the beginning, what specifically would you change about your product?

A: Use some Super glueee

III. What are the most important features of your design?

A: Mouse pad attach on computer

IV. What’s a skill you learned  or improved on over the course of this project?

A: how to cut these leather accurately, because this product need to be cut really accurate, or it might be broken, or injured. so I have to cut out the part that is broken and let my final size of mouse pad smaller

 

Circuits: Sewable Electronics Project II, CPX Design Reflection

Posted on by William

Hi

Picture below is my final making for this project↓

I. Project

1. Why I choose to make it?

Because I am a gamer, and I love these Pcs, so I want to make a circuit pc(?).

 

2.What was it about the other designs that made you discard them?

Other Design are so difficult and I think I can’t finish them, So I just choose this one.

 

3.What are you most proud of for this product?

I made a lots of functions than my plan, in my play there is only 3 simple functions, but now I make 4 functions with more led effects.

II. learn

1.What was new to you?

I think that might be the The battery in battery pack. It looks like a normal disposable battery, but it can be recharged, which shocked me (ΩДΩ)

 

2.What things were hard for you, how did you overcome them?

Build that case. I used the fabric pad to build my pc case. but the main problem is I need to connect those pads, or it is not a “case”. I was trying to sew these pad on, but I give up.  there is so many stuffs I have to sew and I don’t have enough time to sew. if I sew it than I don’t have time to add some LEDs.

 

3.What tips would you give to next semester’s students?

Don’t give up things like me

 

4.What new things do you want to learn based on this project?

Use Code to Code and not that Scratch-like modules, it seems like those codes if for kids and not for 7-graders