Table of Contents
Arim DASL Spring 2025
Author: Arim Baek, Email: baeka3@unlv.nevada.edu
Date Last Modified: 04/19/2025
Week 13
Photo of the week
I did a spicy chicken challenge with my lab members. We went for the spiciest level at Angry Chicken, the Angry Level. And it was the day I drank the most milk in my entire life. I could literally feel how the mouth, throat, nose, and ears are all connected. I ate the chicken with my mouth, but everything hurt. I spent the rest of the day curled up in pain with a serious stomachache. You might wonder why anyone would be dumb enough to eat something that spicy. But the reason is simple. Because it’s fun!!
New person (outside of DASL) that you met
I met Dhanvi, who is also in robotics lab. She is in the same lab with Hawon, another student intern from KAU. She said she is doing research on surgical robots in her lab. I also got a quick tour of her lab, which was really exciting since it was my first time visiting a different research lab. We also use CNC and 3D printing in our lab, but hers was focused on performing highly delicate tasks for surgery. So everything from the CNC machines to the flutes and the items they produce was small and precise. What impressed me the most was seeing a thin wire, so thin that I couldn't feel its thickness with my fingers, being bent in three distinct segments to manipulate tiny objects. It was truly fascinating.
What institutional of American/Vegas cultural insight did you learn this week?
During our lab meeting, Dr.Oh mentioned spacing around parentheses, saying that Koreans usually don't leave a space before opening parentheses. He also pointed out that, in English, there should be a space before the parenthesis when it's used after a word. It was something I had never really paid attention to before, so I became curious and looked into how parentheses are used in Korean.
In Korean, the spacing depends on the grammatical particles used. Sometimes there's a space, and sometimes there isn't. However, in informal writing, most Koreans tend to place parentheses directly after the preceding word without a space. This seems to be a way to emphasize the connection between the word and the content inside the parentheses. Because spacing in Korean can sometimes change the nuance or meaning of a sentence, it becomes a habit for many to omit the space in order to show continuity with the previous word.
As a result, this habit may carry over into how parentheses are used when writing in English as well.
What did you learn about yourself?
I feel like I lack the boldness to take action. Whether it’s the business I started through the book club, a lab project, or something in everyday life, there have been many moments where action was needed more than overthinking. But in those moments, I often hesitated, giving in to fear, telling myself I needed to research more, study more, or be more certain just to avoid the risk. I think I need the ability and mindset to make more clear-headed decisions and take bold action when it's needed.
What is the status of your technical projects and what skills did you learn?
I was able to observe how the output waveform of the integration and differentiation circuits changed depending on the RC values. Through this, I realized that the PID gain can be adjusted using the RC values.
After switching the Shapeoko's endmill to a 4-flute one, I started noticing smoke every time I cut wood.
It was due to the spindle speed and feed rate being too low. After researching various sources, I found appropriate settings, adjusted the values to avoid simulation errors,
and then applied them to the CNC machine. As a result, the cuts became much cleaner and smoother.