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17. Applications and implications

Propose a final project masterpiece that integrates the range of units covered.

Answering:

What will it do?

An automatic gel alcohol dispenser. Given the proximity of the person's hands, detected by the sensor, the dispenser will expel the gel until they are removed. The instructions will be programmed on an electronic card.

Who has done what beforehand?

We find automatic alcohol or gel soap dispensers for sale in the free market.
On the other hand, this type of homemade dispensers are also already being used in different countries. However, working in a digital manufacturing environment, I have not found any precedents.
What is intended in this project is that from the experiences of home manufacturing, it is done based on digital manufacturing.

What will you design?

  • The protector or casing of the gel alcohol dispenser.
  • The Protector of the electronic card.
  • Bras
  • PCB board
  • What materials and components will be used?

  • 3D PLA filament.
  • 5.5mm thick MDF material
  • Attiny85 microcontroller
  • Servo motors
  • Sensor
  • Jumpers
  • Resistors
  • Sensor
  • Where will it come from?

    Practically all the material is available in our digital manufacturing laboratory, with the exception of alcohol gel, which will have to be purchased in the local market.

    How much will they cost?

    Description $
    3D PLA Filament 22
    5.5mm MDF material thick 40
    Attiny85 microcontroller 5
    Servo motors 20
    Sensor 15
    Jumpers 3
    Resistors 5

    What parts and systems will be made?

  • Protector or casing of the alcohol gel dispenser printed in 3D.
  • Protector or casing of the electronic card in MDF material.
  • 3D printed bras.
  • PCB board design and manufacturing
  • What processes will be used?

  • 3d print
  • Laser cut
  • Electronic design and production
  • What questions need to be answered?

    What type of microcontroller is the most recommended to achieve our purpose?
    What components are necessary to go on the electronic card?

    How will it be evaluated?

    The necessary tests will be carried out to verify if the dispenser works; if the sensor detects the proximity of the person's hands and if there is communication between the sensor and the motor for the expulsion of the alcohol gel.