Katya Diaz

Hello! I am a Latin American Industrial and Product designer, maker and constant learner based in Qatar. Currently I'm the Fab Designer at QBIC Fab Lab where I mainly deal with product development and prototyping. I belive in the power of design to improve equality accross communities and social development. In my leisure time I enjoy outdoors activities such as diving and camping.


How to Make
(Almost) Anything

Assignment 1
Projects Management
Principles and Practices

Work through a git tutorial
Build a personal site in the class archive describing you and your final project.

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Assignment 2
Computer Aided Design

Model (raster, vector, 2D, 3D, render, animate, simulate, ...) a possible final project.

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Assignment 3
Computer Controlled Cutting

Characterize the design rules for your PCB production process. Make an in-circuit programmer by milling and stuffing the PCB.

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Assignment 4
Electronics Production

Characterize the design rules for your PCB production process. Make an in-circuit programmer by milling and stuffing the PCB, test it.

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Assignment 5
3D Scanning and Printing

Test the design rules for your 3D printers. Design and 3D print an object.

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Assignment 6
Electronics Design

Observe the operation of a microcontroller circuit board.Redraw an echo hello-world board.

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Assignment 7
Computer-Controlled Machining

Make (design+mill+assemble) something big.

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Assignment 8
Embedded programming

Read a microcontroller data sheet program your board to do something.

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Assignment 9
Input devices

Measure something: add a sensor to a microcontroller board that you have designed and read it.

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Assignment 10
Applications and implications

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

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Assignment 11
Output devices

Add an output device to a microcontroller board you've designed, and program it to do something.

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Assignment 12
Interface and application programming

Write an application that interfaces a user with an input and/or output device that you made.

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Assignment 13
Invention, intellectual property, and income

Develop a plan for dissemination of your final project.

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Assignment 14
Networking and communications

Design, build, and connect wired or wireless node(s) with network or bus addresses

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Assignment 15
Molding and casting

Design a 3D mould around the stock and tooling that you'll be using, mill it (rough cut + (at least) three-axis finish cut), and use it to cast parts.

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Assignment 16
Wildcard week

Design and produce something with a digital fabrication process.

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Assignment 17
Mechanical design, Machine design

Design a machine that includes mechanism + actuation + automation.

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Final Project
Smart Diffuser

Complete your final project tracking your progress.

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Acquaint me

About me

I believe that design can transform and improve society. My work includes the following.

  • Design
  • Prototyping
  • Workshops
  • Product development
  • Social Design
  • Packaging

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Final project

Smart Diffuser


Final Project

For my final project I decided to make a smart diffuser, this diffuser uses water and ultrasonic vibrations (Piezoelectric Disc) to disperse molecules of the oil into the air through a fine mist. It can function as a light (adafruit neo pixel leds) that will turn off/on with a clap (sound sensor). However, if the user does not make any sound it will automatically turn off after 30 minutes.

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“Design should never say: ‘Look at me’. It should always say: ‘Look at this”



For the development of me product I used the techniques I learned during the past months. My final project includes, 3d printing, CNC milling, laser cut and electronics.

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“If you are interested in my project you can find all the files in here”


Final Press

The smart diffuser is a friendly device that fits perfectly in any space. Its made with honest maretials: natural wood and recycled plastic.

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“You can find a video of the making and a slide describing the parts of my project.”


Project Gallery