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11. Applications and implications

Propose a final project masterpiece that integrates the range of units covered, 
      answering:
         What will it do?
         Who's done what beforehand?
         What will you design?
         What materials and components will be used?
         Where will come from?
         How much will they cost?
         What parts and systems will be made?
         What processes will be used?
         What questions need to be answered?
         How will it be evaluated?
      Your project should incorporate 2D and 3D design,
         additive and subtractive fabrication processes,
         electronics design and production,
         embedded microcontroller interfacing and programming,
         system integration and packaging
      Where possible, you should make rather than buy
         the parts of your project
      Projects can be separate or joint, but need to show individual 
         mastery of the skills, and be independently operable

My Final project is to fabricate Demonstration device to demonstrate the elasticity of materials

​ What will it do?

It will be Demonstration device to demonstrate the elasticity of materials by using strain gauges. Idea is that teacher and students can observe the elasticity of materials in classroom.

​ Who’s done what beforehand?

I have studied the strength of materials. I know effect of the elasticity of materials. I know theory of Strain Gages, but I don’t know how fabricate electronic device, which base on Strain Gages. In Earlier Years In Fab Academy someone are use Strain Gages in their projects.

Strain Gages projects in Fab Academy: - William Megill - Chunwei Ge - Leirado Silva

​ What will you design?

I will use Commercial strain gages and ready-made stand of sample.

I will design PCB of measure unit. The Measure unit consist of at least microcontroller and LCD-display. I will also design box for the measure unit and Clips for wires on stand**

​ What materials and components will be used?

I will use normal PCB board. The componets are one microcontroller, LCD-display and some resistances.

The box material could be commonly used 3D printing filament and Clips material coud be plastic.

​ Where will come from? I will get all materials from Fab Lab Oulu. Only Strain Gages I have to purchase outside of Fab Lab.

​ How much will they cost?

Item Quantity Cost / item (Eur) Total cost (Eur)
Microcontroller ATtiny1614 1 1,1 1,1
LCD-display 1 10,0 10,0
Strain Gages 2 10,0 10,0
Resistances 5 (est.) 0,2 1,0
Amplifier TL072 1 1,2 1,2
Total 23,3

​ What parts and systems will be made? What processes will be used?

Measure unit - I make PCB board by milling (subtractive processe) (electronics design and production) Clips - I make Clips by Laser cutting (subtractive processe) Box of Measure unit - I make box by 3D printing (additive processe)

​ What questions need to be answered?

Which components I will need? How to fabricate robust Strain Gages device?

​ How will it be evaluated? I will be happy if following thing include final projet - I can desing and fabricate device - Strain Gages data will be shown in LCD-display - I have good ideas to improve verion 2.0