2 minute read

Introduction:

A client ask me to help develop a Dog feeder based on Rings that could be stacked on top of each other to lift the bowl high enough for each dog`s size making it healthier for the animal`s back.

Technologies Used:

  • Fusion 360 (CAD): I utilized CAD software Fusion 360 to create detailed and precise 3D model.
  • Bambu Studio (Slicer): I utilized the slicer to optimize the printing process of the model.

Design:

I started with getting all dimentions of the desired bowl, once I got all I needed I did the first sketch with the sugested mechanism of locking each ring to the other, which consisted in a inverted L shaped lock.

L shaped lock 1

L shaped lock 2

As you can see the L shaped lock had a lot of issues when printings, making the process of removing the supports harder than it needs to be and loosing the smooth finish of the printing.

After realizing that, I opted for a circle shaped lock that needed less support when printing and when removing the support it would take seconds and leave a good finishing.

Round shaped lock 1

Printing:

But I still had a problem what is the tolerance that i should use for that lock to hold everything and last a long time, but to be at the same time eazy to lock and unlock iwth not much effort. So in order to figure that out I started printing tests, I couldnt possibly print a whole new ring for each test and spend kilos of filament so i started cutting the object in a way i could only print the exact parts i needed to test, and after a few iterations i got to the perfect print to test my tolerance.

The first cut I did was done in Fusion 360 to print only an arch that had the locking mechanism.

Round shaped lock 2

Round shaped lock 3

Round shaped lock 4

And then on my slicer program (Bambu Labs Studio) I cutted only the lock itself, minimizing the time and filament used for each test.

Round shaped lock fast print 1

Round shaped lock fast print 2

Round shaped lock fast print 3

With only the small change on the slicer I saved half the cost in filament (5g/print) and 10min/print.

At the end the tolerance that started with 0,4mm came to -0,1mm. And here is the final result of the project.

Dog Feeder

Conclusion:

Through the successful completion of this customizable dog feeder project, I not only refined my 3D printing skills but also demonstrated the capability to innovate and adapt in response to unforeseen challenges. The transition from an L-shaped to a circle-shaped lock exemplifies a critical approach to problem-solving, enhancing the product's usability and manufacturing efficiency. Furthermore, the iterative process of testing and adjusting the lock's tolerance underscores a commitment to precision and durability, ensuring the feeder's long-term functionality and ease of use.

This project not only resulted in a practical product that improves the well-being of pets but also provided invaluable insights into design optimization and resource management. Moving forward, the experience and knowledge gained lay a solid foundation for future endeavors in product design and additive manufacturing.