2nd Prototype: New Mix, New Challenges, and Next Steps

I’ve just wrapped up the second prototype of my project, this time using a different cement mix. While it’s exciting to see the progress, there are definitely some new insights and challenges I didn’t quite expect. Here’s a breakdown of where things stand and what’s next on the horizon.

Cement Mix

The second prototype is noticeably heavier than the first due to changes I made in the cement mix, adjusting the ratios and aggregates. The first prototype incorporated perlite and premixed cement, which helped reduce its weight by about 30%. In contrast, the new mix, without perlite, has greater weight. While perlite lightens the mixture, it also has its drawbacks—specifically, it tends to rise to the surface when letting out air bubbles, creating an uneven texture. This is something I’ll need to monitor closely in future iterations.

Another concern is the impact of the increased weight on the hidden structural plate supporting the pot atop the fountain. The plate may become too stressed over time, raising questions about its long-term durability. I’m unsure of its structural integrity, as I haven’t tested it yet and don’t know the best way to assess its strength. This uncertainty adds another layer of challenge to the design, especially as I move forward with future prototypes.

To tackle these issues, I plan to use a finer-grade perlite and invest in a vibrating table. The perlite used in the first prototype was much coarser than the premixed cement, which created a rough texture. By switching to a finer-grade perlite that matches the size of the other aggregates, I should achieve a more consistent finish. Additionally, using a vibrating table will help ensure a smoother, more even result by allowing air bubbles to easily escape.

2nd Prototype

Assemblying it right after demolding

Pump and Structural Plate

On a positive note, the pump fits well in the structural plate and stand. This was a crucial step in ensuring the functionality of the design. It’s a relief to see components come together as planned, and I’m pleased with how this part of the project is shaping up.

Next Steps

While the second prototype has presented some unexpected challenges, it has also provided valuable insights that will guide the next steps in refining the design. The adjustments to the cement mix have led to increased weight and texture issues, but these can be addressed by switching to a finer-grade perlite and adding a vibrating table to smooth out the finish. The concern about the structural plate’s durability is a key hurdle, but it’s something I’ll need to test and assess as I move forward. On a positive note, the successful integration of the pump with the structural plate has been a major milestone, demonstrating one of the main unique characteristics of the pot that set it apart from other generic ones. With these lessons in mind, I’m optimistic that future prototypes will bring the design closer to its intended concept.