Applications and Implications
For this assigment, we have to:
- (DONE)Define the scope of a project
- (DONE)Develop a project plan
All the files created for this assigment can be found on the link bellow:
---> DOWNLOAD FILES<---
Have yo answered this questions:
- what will it do?
--> yes
- who has done what beforehand?
--> yes
- what materials and components will be required?
--> yes
- where will they come from?
--> yes
- how much will it cost?
--> yes
- what parts and systems will be made?
--> yes
- what processes will be used?
--> yes
- what tasks need to be completed?
--> yes
- what questions need to be answered?
--> yes
- what is the schedule?
--> yes
- how will it be evaluated?
--> yes
Scope of the Project and Project Plan
The idea of this project is to develope a robotic arm using the knowledge I have adquired during the FabAcademy.
a) What will it do?
The robotic arm will be controlled wirelesly by a data glove.
b) Who has done what beforehand?
There is an open source project call inmoov, developped by Gael Langevin, which consists on building a humanoid robot with only 3D printed parts servos and microcontrollers.
c) What materials and components will be required?
- I will need PCB for making the boards.
- 3D Printing Filament for prinnting the hand.
- Acrylic for making a container for all the servos.
- Fishing line that acts as ligaments.
- Flex sensors that read the the flexion of the finger of the data glove.
- Servo motors that pull the fishing lines.
d) Where will they come from?
- The PCB is avilable at our FabLab.
- The 3D Printing Filament is also available at Fablab Esan.
- Acrylic is also available at Fablab Esan.
- Fishing line is selled at local ironmongery.
- Flex sensors are selt at local electronic store.
- Servo motors are also selt at local electronic store.
e) How much will it cost?
- The PCB for free.
- The 3D Printing Filament for free.
- Acrylic is also available at Fablab Esan, so free.
- Fishing line, 1 dollar
- 10 flex sensors, 140 dollars.
- 16 servo motors, 50 dollars.
In total it will cost 190 dollars.
f) What parts and systems will be made?
The hand will be subdivided in 7 parts:
- Three equal fingers for the index, middle and ring fingers.
- The pinky finger (a smaller version of the index finger).
- The palm and the thumb in a same piece.
- The wrist.
- The arm.
g) What processes will be used?
The processes will be:
- 3D Printing.
- Cutting with lasser.
- Milling Boards.
- Soldering.
h) what tasks need to be completed?
- I will have to design some boards: one for distributing energy and one for the input device.
- And then, mill this boards.
- I will have to solder the components to the boards.
- I will have to design some parts for making a container for the servo motors.
- I will have to make some test with the laser cutter.
- And then, I will need to cut this parts on the laser cutter.
- I will have to construct the servo container.
- I will have to design each part of the hand.
- And then, I will need to 3D print each part.
- I will have to joint all the hand parts.
- I will have to join the arm with the wrist.
- Then I will have to connect all the fishing lines to the hand joints.
- I will have to solder cables to the input board and the flex sensors.
- I will have to mount all the flex sensors over a glove.
- I will need to program the communication between the input board device and the arm.
- I will need to program the output board for controlling all the servos simultaniously.
i) what questions need to be answered?
- How much current I will need for controlling all the servos?
j) what is the schedule?
- Two days for buying all the necessary components.
- Two days for designing the boards.
- One day for milling and soldering the boards.
- Five days for designing the fingers, the hand and the wrist.
- Two days for printing all the parts and mounting all the sensors in the glove.
- One day for designing the servo container, and doing some laser cutter tests
- One day for cutting the parts in the lasser cutter, joining them all and joining the arm to the wrist.
- Half a day for joining the hand articulations with the motors using the fishing line.
- Two days for programming the input board, the output board and the communication between both boards.
In total I will need 16.5 days at least.
k) How will it be evaluated?
The correct operation of the electronics and the structure is evaluated.