Week 10

Molding & Casting

11/06/2025-11/13/2025

Group Assignment

Here's the link to our group assignment: group assignment

For the group assignment, we learned how to measure the power consumption of a speaker. We tried different frequencies and amplitude of the sound and how that affects the current and voltage.

Ideas

During my lab retreat, we played a couple chess game, which actually made me want to start playing chess again. The hotel also had a chess set that is an art piece itself, which made it extra satisfying to play with.

I also wanted to make a nice chess set like this, but it's more of a 3d printing project, so I already missed my chance.

So I found a more feasible project for week, like this:

Or this:

Making a complete chess set definitely takes way too much time, so I just want to make the most important piece in chess: the Queen piece.

Planning Ahead

One of the issue I encountered was not checking the inventory before starting to design my board. As a result, I was scrambling to find the parts I saw on the online inventory list but that actually don't exist in the physical inventory. I also didn't really want to change my design and print out another board as that would mean I need to spend time modifying my design, mill the board, and add the input device again. This is a clear sunk cost fallacy, and I was too deep into my original board to switch to a new design.

Resources and Acknowledgements

Tools used:

Thanks to Anthony for showing me how to use the heat gun and being there so I feel more comfortable doing it myself. Thanks to Matti for gifting me two RGB LEDs that he ordered himself.

Design Files

You can download the Fusion 360 files here