11. Open Source Hardware - From Fibers to Fabric¶
Research¶
References & Inspiration¶
I had the idea to design and build a dye-rotating machine specifically for processing fish leather. The curing process for fish leather typically requires the material to be stirred or agitated continuously to ensure even absorption of dyes and curing agents. This step is not only time-consuming but also labor-intensive when done manually.
To address this challenge, I envisioned creating a machine that would automate the stirring and shaking process, eliminating the need for constant supervision. This machine would provide a consistent and efficient way to handle the curing process, ensuring uniform results while freeing up time for other tasks. By taking over this repetitive step, the machine could simplify the production process and enhance the overall quality of the fish leather. This project combines functionality and innovation to improve a traditional technique through modern technology.
3D Parts¶
For this project, I 3D-printed several components, opting to use Add:North Economy filament due to its lower environmental impact compared to traditional materials. Choosing this filament was part of my effort to make the project more sustainable while maintaining quality and durability in the printed parts.
I designed the majority of the 3D-printed components entirely from scratch, tailoring them specifically to fit the unique requirements of the machine. For two of the parts, however, I started with existing designs and heavily redesigned them to better align with my vision. This redesign process allowed me to modify the shapes, dimensions, and functionalities of the components, ensuring they worked seamlessly with the rest of the system.
The ability to create and customize these parts from the ground up provided me with the flexibility to fully adapt the machine to meet my specific needs. This hands-on approach not only optimized the machine’s performance but also gave me greater control over its final design and functionality. The experience further enhanced my understanding of 3D modeling and printing as tools for problem-solving and innovation.
3D Print files¶
| Qty | Description | Material | Infill | Notes |
|---|---|---|---|---|
| 4 | 608 ball bearing | 2.06 g | 30% | |
| 1 | Ardueno_UNO_N_Breadboard-Holder | 22.48 g | 30% | |
| 3 | Ball_Bering-Gear_PIN | 1.69 g | 30% | |
| 2 | Ball_Bering-PIN | 0.57 g | 30% | |
| 1 | Moter-Holder | 11.41 g | 30% | Support |
| 2 | Metal_Pipe-Cover | 22.01 g | 30% | Glue Plate |
| 2 | Metal_Pipe-Holder-A | 6.1 g | 30% | |
| 2 | Metal_Pipe-Holder-B | 6.1 g | 30% | |
| 4 | PEG | 3.04 g | 30% |
Thingiverse¶
notes
- To adapt the project to my specific requirements, I redesigned the Arduino mounting plate to fit my customized version of the board. This modification ensured that the microcontroller could be securely and efficiently integrated into the machine, aligning perfectly with the overall design.
Additionally, the motor holder underwent a significant transformation. Originally, the motor was secured using a standard PVC pipe holder. However, this setup proved to be inadequate for my needs, so I replaced it with a redesigned holder specifically crafted to keep the motor firmly in place during operation. This new holder not only improved the stability of the motor but also enhanced the durability and precision of the entire setup.
These modifications were essential to achieving a cohesive and functional design, allowing the machine to perform reliably and efficiently. By customizing these components, I was able to optimize the integration of both the electronic and mechanical elements, ensuring that they worked seamlessly together. This process highlighted the importance of adaptability and innovation in tailoring standard components to fit unique project needs.
PCB¶
For this project, I utilized an Arduino Uno Rev3 SMD board as the central control unit to manage the operation of the machine. This board was chosen for its reliability, versatility, and ease of integration into custom projects. Specifically, the Arduino Uno Rev3 SMD board was programmed to regulate the circulation system of the machine while also controlling the motor's speed.
By leveraging the capabilities of this board, I was able to ensure precise and consistent operation, tailoring the machine's functionality to meet the specific requirements of the process. The ability to adjust the motor's speed dynamically allowed for greater flexibility, enabling the machine to handle various tasks efficiently. This setup not only simplified the control system but also contributed to the overall smooth performance and user-friendly design of the machine.
Electronic Parts¶
| Qty | Description | Price |
|---|---|---|
| 1 | 330 ohm Resistor | $ 5.99 |
| 1 | Arduino uno rev3 smd | 23,20 € |
| 1 | Breadboard | $ 5.59 |
| 1 | Diode (1N4148) | $ 5.99 |
| 9 | jumper wires | $ 6.98 |
| 1 | Motor | Fond |
| 1 | Potentiometer | $ 7.99 |
| 1 | Transistor (P2N2222AG) | $ 6.99 |
Code¶
To develop the functionality of the machine, I started with a sample code from an SKI Guide designed for a SparkFun kit. This code served as the foundation for the control system, providing a solid framework to build upon. I then customized the original code, making several modifications to suit the specific needs of my project.
One of the key alterations I implemented was the addition of a speed dial feature. This enhancement allowed for precise manual control over the motor's speed, providing flexibility to adjust the machine's operation as needed. By integrating this feature, I ensured that the system could be fine-tuned for optimal performance, making it adaptable for different tasks and materials.
The process of modifying and expanding the code not only improved the functionality of the machine but also deepened my understanding of Arduino programming. It was a valuable exercise in problem-solving and innovation, as I worked to tailor the existing framework to create a system that met my unique requirements.
Code Example¶
Use the three backticks to separate code.
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
Put-Together¶
The machine was carefully assembled following a detailed diagram that I had created during the planning phase of the project. This diagram served as a comprehensive guide, outlining the precise placement and connection of each component to ensure the system functioned as intended.
By adhering closely to this plan, I was able to streamline the assembly process and avoid potential errors. The diagram included the arrangement of the motor, circuit board, and other key parts, as well as the pathways for wiring and connections. This level of preparation proved invaluable, as it allowed me to visualize the final design and troubleshoot any potential issues before they arose during assembly.
Following my own custom-designed schematic not only reinforced the structural integrity of the machine but also ensured that the components were aligned and integrated seamlessly. This step was crucial in transforming the theoretical design into a functional and reliable system, bringing the project closer to completion.
Tools¶
- Plastic box - Width: 30 cm × Height: 12 cm × Length: 40 cm
- Plat - Width: 29,5 cm × Length: 39,5 cm
- Metal pipe - Width: 20.0 mm
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Video¶
-Test on Gear.¶
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Version 2¶
References & Inspiration¶
The first version of the project did not perform as well as I had hoped, prompting me to revisit the design and address the issues that arose. Rather than scrapping the idea entirely, I chose to work around the existing problems to see if they could be resolved effectively. My primary goal for this second iteration was to simplify the overall design, ensuring that it would function more reliably and efficiently.
By streamlining the structure and reducing unnecessary complexity, I aimed to improve both the usability and performance of the machine. This approach allowed me to focus on refining the core features while eliminating elements that may have caused complications in the initial version. Through this iterative process, I sought to create a more practical and dependable solution that better aligned with the project’s goals
3D Parts¶
For the updated version of the project, I designed a new set of 3D-printed components to replace the original gears with pulleys. This adjustment was made to enhance the functionality and efficiency of the system, as pulleys offered a smoother and more reliable motion compared to the gears used in the previous version.
The design included two larger pulleys, which were specifically crafted to fit onto the rollers. These pulleys are crucial for driving the rotation of the rollers and ensuring consistent performance during operation. In addition, a smaller pulley was designed to attach to the drill head, which is directly connected to the motor. This smaller pulley plays a vital role in transferring power from the motor to the larger pulleys, facilitating the rotation of the rollers.
By switching to a pulley-based system, I was able to simplify the mechanics while maintaining the desired functionality. Each component was carefully modeled to ensure a precise fit and optimal performance. This change not only improved the reliability of the system but also provided a more efficient way to achieve the desired motion, making the machine easier to operate and maintain.
3D Print files¶
| Qty | Description | Material | Infill | Notes |
|---|---|---|---|---|
| 4 | 608 ball bearing | 2.06 g | 30% | |
| 2 | Ball_Bering-PIN | 0.57 g | 30% | |
| 1 | Moter-Holder | 11.41 g | 30% | Support |
| 1 | New Moder-Pulley | 22.48 g | 30% | |
| 2 | Metal_Pipe-Cover | 22.01 g | 30% | Glue Plate |
| 2 | Metal_Pipe-Holder-A | 6.1 g | 30% | |
| 2 | Metal_Pipe-Holder-B | 6.1 g | 30% | |
| 4 | PEG | 3.04 g | 30% | |
| 2 | New Pulley | 1.69 g | 30% |
Thingiverse¶
notes
- In this updated version of the project, the primary changes involved the addition of two newly designed components: the motor pulley and the secondary pulley. These new parts were specifically created to enhance the system's functionality and improve overall performance.
The motor pulley was designed to attach directly to the motor's shaft, serving as the driving force behind the machine's movement. The secondary pulley was crafted to interface with the rollers, ensuring smooth and efficient power transfer throughout the system. Both pulleys were carefully modeled and 3D-printed to match the specific requirements of the project, including precise dimensions and compatibility with the existing components.
Aside from these new additions, the rest of the parts remained unchanged from the previous version. By keeping the original components intact and only introducing modifications where necessary, I was able to simplify the upgrade process while maintaining the machine's core design. These targeted adjustments helped optimize performance without overcomplicating the assembly, making the system more reliable and efficient in operation.
Put-Together¶
During the assembly process, I encountered an issue with sourcing screws that met the exact dimensions required for my project. I needed screws with a 3 mm diameter and a 60 mm length, but such screws were not readily available. To overcome this challenge, I decided to fabricate custom screws using threaded rods.
I began by cutting the threaded rods to the precise length needed, ensuring they matched the specifications for the design. On one end of the rod, I added a combination of a wing nut and a standard nut. This setup allowed for easy adjustment and tightening while providing stability and flexibility during assembly. The opposite end of the threaded rod was securely screwed into a pre-designed peg, creating a firm and reliable connection.
This custom solution enabled me to work around the hardware limitation while maintaining the integrity and functionality of the project. Crafting my own screws not only ensured the components fit perfectly but also underscored the value of creativity and resourcefulness when dealing with unique project requirements. It was a practical and effective way to achieve the desired outcome while adapting to unforeseen challenges.
Tools¶
- Metal pipe - Width: 20.0 mm
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Video¶
-Test on Pulley.¶
-Test on Pulley 2.¶
-Put-Together.¶
