展示图_3x.png

Problem

Convey

There is no mouse designed for disabled people who have lost their hands, so it hard for them to use the computers.

Date

2017.7 - 2017.8(3 weeks)

Solution

Feety is a new kind of mouse which can be controlled by foot easily. With the help of Feety, disable people can operate computer easily.

Type

Group project(2)

Tools

My role

I mainly contributed in product structure design. I raised several key solution which made this product came true. I was also responsible for rendering models and adjusting printed model.

Solidworks,

Alias,

Keyshot,

3-D printing,

Scan 3D

Explore new ways of human-computer interaction !

​Design purpose

There are various kinds of mouses designed for the hands and very few mouse designs for the foot. However, many people lose their hands because of accidents or illnesses, so they cannot control the computer like normal people. 

Group 2_3x.png
 
jiantou_3x.png

We figure out that people who lose their hands finish many tasks with their feet, such as painting, writing and playing music.

So we tried to design a mouse that operates by feet for upper limb disabled people.

Group_3x.png

Ideate

In this process, we encountered two questions.

Question1: How the mouse measure the displacement?

In the traditional hand-held optical mouse, the distance measuring component is at the bottom of the mouse, and measure the relative displacement of the mouse and the desktop.

However, foot have difficulty in griping things, so it can’t grab mouse like hand. Our solution is to place the infrared sensor on the top of the mouse and measure the relative displacement between the foot and the mouse itself.

未标题-2.gif
 

Question2: How to control the direction click the left and right button by feet?

In order to find the best solution, we proposed lots of plans in discussion and finally choice three options in comparison.

Sketch

sketch.png

We made three  mud prototypes in order to figure out which concept feel best.

油泥模型.png

​Evaluation

Which part of the foot is most suitable for controlling the mouse? We invited 8 people participated in this evaluation.

比较.png

As we know, the smaller the force required for control, the better; the larger the movable area, the better; the smaller the pressing point, the better. So we ended up the conclusion that using the forefoot to control the mouse movement, and the heel to click the left and right buttons is the most energy-saving way to control the mouse.

Finally, we choice the concept 3.

3-D scanning

扫描.png

In order to obtained the human foot model, we used the three-dimensional scanning. In order to make user feel more comfortable, we curved surface of the mouse to make it more suitable for the sole of the foot.

组 1.png
11.png
11.png

Product structure

 
图层 0.png
  • Brace support the Chip to approach the foot.

  • Fastener fix the top and the button.

  • When the heel presses the left and right buttons, the buttons are clicked by the lever structures.

杠杆结构.png
未标题-4.gif
外部结构.png
  • move

外部结构_0-80.gif
  • click

外部结构2_0-80.gif

3D-printing 

3d打印_3x.png

After constructed the 3D moduel in SOLIDWORKS,we used 3D printer to print module.

 
成品图.png