Week 18

Project development

By Patricia Samudio Salinas — on

Project development

I have completed a good portion of the final project tasks in a fairly considerable amount of time.

What has worked is the activation of the DC motor through a potentiometer, thus achieving the first development spiral.

As for what did not work is the milling, due to the fact that I did not relic a more precise exploration of the position of the mills in the proposed design (although the design of the stone mills was considered as inspiration -see Notion Page

And I would like to change the design of the grinding wheels, as well as the material and production method: from flat to conical model, to make them in ceramic by the molding and casting method.

To do this, I intend to take the ceramics course offered at the faculty where I teach, which will be given in the next semester of the year, so as to learn a little more about how the product behaves. In this regard, I have already identified some suppliers of ceramic inputs, in addition to the guidance of fellow ceramists.

I learned about the importance and benefit of testing designs from virtual models using the technologies learned throughout the weeks. In addition, I learned a little more about electronic objects and how they work.

It is also pending to incorporate the digital interfaces component to the project, especially to operate it from an app.

☕️ MoliNito is a good start, but it is still under development.

Sumary

What tasks have been completed?

The tasks that were completed, according to the project spiral are:

  • Design of the physical structure.
  • Electronics design
  • MCU programming
  • Motor operation
Images summarizing the development process of MoliNito: above, sketch, study model and final rendering of the 3D model. In the middle, schematic, board and PCB machining. Below, PCB machined with components, soldering and communication test.

What tasks remain?

Among the pending tasks:

  • Adjusting the grinders -redesign to the conical design.
  • Incorporate a digital operating interface.

what has worked? what hasn't?

😎 What worked: 😞 What didn't work:
The engine The grinding


What questions need to be resolved?

Adjusting the match of the mills by redesigning the grinding wheels (from flat to conical).

To manufacture mills with ceramics (molding and casting).

Incorporate IoT features into the product.

In a week # 12, I produced a mold of a mill. I cast in one using acrylic resin mixed with coffee, but the definition of the blades did not come out quite right. Following the information from that week, I will be able to make the ceramic mill.

What will happen when?

Review the 3D models collected and using the bevel gears, prepare the new model and generate the molds.

Learn more about the ceramic working process.

What have you learned?

😯 How to program an MCU for a DC motor.

😎 Benefits of rapid prototyping in product (idea) development.