A presentation giving a brief introduction on 3 D printed devices and talking about how a smart watch is used in the fields of electronics, computers, mathematics and mechanical engineering.
2. 3D PRINTED WEARABLE DEVICES:
They consist of clothing and accessories that incorporate computer and
advanced electronic technologies
They are made of the smallest and most powerful computer chips.
These computer chips utilize 3D printing to produce completely custom
made products.
A 3D printed wearable device can be said to be the brainchild of a fashion
designer and an engineer.
They may have many practical functions and features but they are more
popular for their aesthetic appeal.
3. 3D PRINTED SMARTWATCH
SmartWatches are often considered the less intelligent sidekicks of smartphones.
However there are SmartWatches which work independently and require no pairing.
It combines breakout boards and a 3D printed frame and it consists of four sections:
1. A battery charging circuit.
2. A vibrating motor for silent notifications.
3. A programmable core (8MHz Microduino microcontroller) with power regulation
4. Bluetooth LE and an OLED display with pushbuttons.
3D printed SmartWatches feel like smartphones attached to our wrists.
4.
5. ELECTRONICS COMPONENT
The SmartWatch has a 500 mAh 3.7 V lithium polonium battery.
This battery is connected to a JST connector and a two way switch.
When the switch is connected to the right, the circuit is in battery mode and to the left
it is in charging mode.
The SmartWatch has an OLED display and two small LEDs.
The vibrating motor circuit consists of 1K and 33Ω resistors, a capacitor, NPN
transistor and a motor.
6. COMPUTER COMPONENT
The SmartWatch has a programmable core.
Within the 3D frame of the SmartWatch, there is a 8 bit Microduino microcontroller.
This microcontroller is connected to a programmable port and a Bluetooth Low
Energy board.
The microcontroller has 14 digital I/O pins and 9 analog input pins.
This is the component which helps in communication with smartphones and other
devices.
7. MECHANICAL COMPONENT
The assembly of the small components of the SmartWatch is done using a fine point
soldering iron.
Soldering is the process in which two or metal components are joined by flowing a
filler metal at the joint.
The filler metal has a lower melting point than the adjoining metal components.
It is used to establish a permanent connection between the electronic components.
The most commonly used filler metals are lead-tin alloys and zinc alloys.
8. MATHEMATICAL COMPONENT:
The theorem which allows us to materialize the concept of 3D printing is called
Fubini’s theorem.
It states that an object of n dimensions can be represented as a spectrum of layers of
shapes of n-1 dimensional layers.
Here we make the use of iterated integrals which are the result of applying integrals
to a function of more than one variable.
Consider,
The integral on the right hand side is called the iterated integral.
9. CONCLUSION
The potential of SmartWatches are huge.
The biggest attraction of current SmartWatches are their inbuilt health and fitness
trackers.
The market size of SmartWatches is expected to grow from $3-5 billion dollars to 30
billion dollars within the next 3 years.
The cost of building a 3D printed SmartWatch is expected to drop to 25% of the cost
of a phone with further improvements in technology.
They represent the coming of an era where more and more connectivity is achieved
through smaller and smaller packages.
