Procedure:
0. Assignment
1. Important Questions:
a) What Will It Do?
b) Who Has Done What Beforehand?
c) What Materials And Components Will Be Required?
d) Where Will They Come From?
e) How Much Will It Cost?
f) What Parts Of The System Will Be Made?
g) What Processes Will Be Used?
h) What Tasks Need To Be Completed?
i) What Questions Need To Be Answered
j) What Is The Schedule?
k) How Will It Be Evaluated?
0. Assignment
Propose a final project that integrates the range of units covered.
Learning outcomes:
Define the scope of a project
Develop a project plan
Have you answered these questions (written above)
1. Important Questions:
These questions answer the prototype v1.0 Moving Lamp that I am fabricating
as final project. Once I have finished this prototype, the next step is to go
to a bigger scale onto the architectural board.
a) What Will It Do?
My Final Project Prototype v1.0 is a lamps that will move without being touched. It will move through one
horizontal axis executing the commands given by the persons using it.
Although my v1.0 prototype does not include the atmospheric light all around the frame,
it will have a direct light that will be able to move.
b) Who Has Done What Beforehand?
Looking for the people who have done this type of movement beforehand stands out a particular brand: 'U-arm':
This mechanism is very powerful as it can 3d print, laser engrave and help you with anything you need.
Sliding Mechanisms:
If we to photographer's field and film, a lot of them use sliders
as the one just below. These first 3 images show sliders without
being powered by any motor. They are moved by using your hands
to keep the camera at certain height.
Its mechanism works differently depending on the distance covered and the material used.
This image shows how the slider moves with the rotation of the
motor's shaft. The stepper motor is placed at one end of the axis.
This kind of mechanism makes the slider
go slow, needing more steps to move 1cm.
A mechanism that transmit the rotation with a pulley system,
transforming rotation movement to horizontal movement. The motor
is at one side of the axis as in the first example. In this case,
but with the advantage that using different diameter pulleys make
the slider go at the speed the designer wants.
A mechanism which has the motor on the slider, moving while the slider moves. Attached to the shaft,
is a belt with which the slider can move.
A mechanism very similar to exampl 3 but having the motor at one side. It also uses a belt,
making it easier than example 1 to move freely.
Homemade 3d Printer
Several 3d printers that are homemade, all the different parts are on the internet.
Taking a look special look to the piece that creates the tension on the belt:
the belt tensor.
c) What Materials And Components Will Be Required
For the structure:
-Medium Density Wood 4mm.
-Aluminium Rods for the slider to move.
-Slider - Plastic PLA for 3d Printer.
-Tensor - Plastic PLA for 3d Printer.
-Sonar support on slider.
-Wooden Stiffers
For Input/Output Components:
-Stepper Motor
-2 Sonars
-12 Volt Supply
-Electronic boards for Input and Output
d) Where Will They Come From?
Most of the elements will be fabricated with the exception of:
-stepper motor
-sonars
-12 volt supply
-Belt
The rest of the elements and components will be directly fabricated from me. This means:
-Structure made out of MD Wood
-Slider
-Belt Tensor
-Sonars Support
-Input Board Design + Components
-Output Board Design + Components
-Networking Code for both boards.
e) How Much Will It Cost?
As this is just a small prototype, I want to keep it low for later on creating the final product for the whole table. This is a general idea of what I will be using:
In total, the prototype costs 90 euros.
f) What Parts Of The System Will Be Made?
-The structure
-The electronics boards and coding
-Slider
-Belt Tensor
g) What Processes Will Be Used?
There will be 2 different processes used for this prototype:
-3d Printing
-Lasercutting
h) What Tasks Need To Be Completed?
So far I have designed the different parts of the structure and physically the slider works. What is left is:
-The wooden stiffness
-Networking Boards: Create a new code so both boards talk to each other.
-Make sure the input board does not miss any steps of the axis nor goes further than the possible limit.
-Finish the tensor
-Finish sonar supports
-Other minor parts
i) What Questions Need To Be Answered?
-Is the slider going to move in a continuous movement?
-Are the sonars prepared to react to errors like both having obstacles at the same time?
-What parts of this first prototype can be used for the architetural table?
-What new creation must I do for it to work on the table?
j) What Is The Schedule?
The schedule is first to finish all the parts needed: structure, sonars supports, slider, making sure the slider moves all the way from one side to the other.
Check on the tensor if it works correctly once the belt is correctly attached to the slider and the stepper motor.
Test the stepper motor if it moves all the way though the axis + calculate the distance with how many steps the motor need to do them.
Create a new code and program it.
Check independently they work and then put everything together.
Final code fixes.
k) How Will It Be Evaluated?
When the prototype is finished, my intention is to go for the big creation and start with the design for the architectural table.
The idea is to incorporate other new lighting devices such as atmospheric light all along the wooden frame.
Once I finish the fablab, my idea is to complete it.