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Fablab Seoul

JIN`s Fab Academy 2018:
How to make almost everything


week18:Applications and Implications


-What will it do?-

-Who's done what beforehand?-

I'll make a CPR band.
Cardiopulmonary resuscitation (CPR) is the practice of first aid to patients who have collapsed into acute cardiac arrest by CPR.
A CPR band is a device that helps you perform emergency procedures correctly.
I want to make a CPR band and let people know it's open-source so they can make it themselves.


This is a CPR band found on the Internet. It has not yet been sold and is under development.

My friend designed a CPR band himself.

- What will you design?-

It will be similar to the smart band and will be designed for people to wear it comfortably.
It will make a good impact on fashion, function and society.

-What materials and components will be used?-

-What parts and systems will be made?-

The exterior of the band will be made using a 3D printer.
3D modeling will ensure that internal components are positioned and designed so that they are visually OK, which is why a 3D printer is appropriate.
Of course, it will be made like a prototype through a later machine.
The chain will be made by cutting the leather with a silicon mold and laser cutter.
For internal parts
- Output : RGB LED
- input acceleration sensor
- Portable battery
- Bluetooth sensor
Several more parts will be used.

-Where will come from?-

It will come out of my hand. This will be done by anyone in Fablab.
So I hope that the CPR band will spread so that we can save a lot of patients with acute cardiac arrest.

-How much will they cost?-

3D Printers : The prices are low. Printing - $ 10
Tool Bar 1 : Cutting leather with laser cutter - leather costs $ 3
Time Line 2 : Silicon Moulding - $ 10
PCB main board : $ 10
Lithium Battery : $ 6
Acceleration sensor : $ 5
Bluetooth sensor : $ 5
Packing box : CNC Cutbeting - $ 8
Battery charging module : $ 3
RGB LED : $ 3 Total : $ 63


The size of each sensor was modelled and checked.

Finally, it can determine how much volume and position of the sensor.

- What processes will be used?-

I will calculate the speed at which CPR is performed on the chest through the acceleration sensor and will show the accuracy with LED.
It will turn red when it is weak, green when it is moderate, and yellow when it is too strong.
So when doing CPR, you can adjust your power through LED lights.

-What questions need to be answered?-

What task need to be completed?-

-How can we get light into RGB through acceleration sensors? -The acceleration sensor can determine the accuracy of CPR - make PCB

- How will it be evaluated?-

- Hopefully evaluated by the improvements in my skills - the ideas - the trials and failures