Designing for Laser Cutting Blog Post

Section 1:

Portable cd drives are often laptop drives repurposed with an adapter board that adapts the SCSI (Parallel Bus) connection to USB. However, large brands often price their portable drives way too high. Many people that wanted the features and benefits of disc media, which provided movies, software, and data without the need of internet are determined to DIY their own drive.

However, large brands have the access to plastic moulding factories that produce colorful and durable cases. Computer enthusiasts do not have such access. They cannot make a case for their own cd drive. My design resolves this issue. It can be made with any enthusiast’s laser cutter. And provides an enviromentally-friendy, durable case.

I started with the ideas of an enclosed case made with plywood 3mm thick, and with 3 teeth on each side with cut-outs for cables. However, the drive emitted lots of heat since it has a spinning motor. I designed bars cut out to ventilate the device, and a few more decorative holes for aesthetics as well as cooling. Since there’s a lot of cut-outs, the 3mm wood is unusable since it can snap easily. I switched to 5mm wood.

After redesign:

2nd Redesign: I had already prototyped my initial cardboard, but then I realized that my work is less artistic and less representative of myself than the work of others. The product is already functional, but I want it to look more visually appealing.

These designs are telling the process of making a computer chip. It describes my enthusiasm with hardware, and it fits the drive in it’s style. For the first time, I etched part of my design onto the material, not to cut everything. This is because I have more details to my drawing, and I do not want to bridge everything.

On left is the down-facing side of the case. It is simpler, and tells of my passion in music. But it provides more ventilation, as most of the lines are cut out.

3rd revision: The other design teachers messed up my image file and accidentally mirrored my lbrn2 design, which caused an unusable prototype. While re-submitting for a second try, I realized that my design still does not really represent myself. I am passionate about design in digital art. And so I included an etching of a computer screen with a 3d-modelling app open. That new design is visually more appealing than my bad attempt at drawing a motherboard earlier. The backside is unchanged.

While I did demonstrate my fusion skills, it is still not artistic as others’ work, but I think it belongs with a computer, and it should fit in with the industrial and complex feel.

If I could design it again, I would have made the pieces more complex. Maybe a storage bay for spare discs on top of the drive, or a wooden drive door cover that’s on hinges.

 

Section 2:

Although I learned all the concepts and operations prior to the laser cutting project, the most growth I had in my skill came with the 3rd revision. Before that, I only used basic skills, like rectangles, circles, lines, and mirroring to make a simple pattern of a disc, or a few flat images of computer parts.

After the 2rd revision, I focused on the computer screen image. It is very challenging to create a 3d image on a 2d plane. The default human model required a lot of time into the modeling and countless trials and error. And the menu icons and other objects challenged my ability to recreate a scene in fusion.

Which brings us to the next stage in development. In the 1st revision, everything on this lightburn image was red. Which means to cut. I later learned that I don’t have to cut everying, since my drive does not emitt light, like a lamp. So I only left necissary holes for ventilation, and everything else is for aesthetics.

Seen here in the 3rd revision, the frontside is more complex in design, since it is where you usually see it.

In the cardboard phase (revision 2), I discovered that the laser cutting teacher would hand me my project with everything mirrored. It’s visually unappealing and unusable, since the position of vents is also mirrored. This is my main challenge. I overlooked my fusion file and saw that nothing is wrong, but I discovered that I had not layered the colors properly. Blue should be on the top, and red on the bottom. I learned from my mistakes, and in the final product (rev. 3), I layered the colors the right way and it cut properly.

In the final process, gluing is simple. Yet I cannot find the right screws to fix the drive in. My troubles were quickly resolved, since the fit of the drive in the wooden case is suprisingly snug—too tight. I had to squeeze the drive and adapter inside, and they don’t fall out even when being shook.

 

Section 3:

What tips, tricks, and advice would you give to the incoming students?

A. The initial registering and installation process of Fusion is very important. Follow the instructions, any mistake will hinder you in your learning. Do not mess up your license.

B. Pay attention to all of the fusion skills being explained to you. It is very important in your laser-cutting project.

C. Do not rush through the design process, or you will end up with an overly simple or aesthetically unappealing project.

 

Consider: what would have helped you if you knew it at the start of the course?

I did not know the design process of the laser project is very long. I should have taken my time finalizing my design. Rather than jumping straight ahead.

 

What would you, individually, do differently if could go back and do the class over?

The disc drive case is not a good choice for this unit. It is too small, and it had too simple geometries. I should have done a lamp that is in a complex shape, and I could have put video game / manga illustrations onto the device that fits better with my room. A lamp made of much more pieces and better designs that show more skill in the “spline” tool would be a better choice.

The Journal of Jonas Browne, a Colonial Teenager

Just like the journals we wrote prior to this, we are imagining the life of a person living in the past. However, in this journal, the enviroment is vastly different from the Russian Revolution, and it is in a very different time. This is the journal of Jonas Browne, a colonist born in 1769. A fictional charachter created by me.

His father is a British tax collector many years prior the revolution. Yet the rising American spirit aginst taxes from Britain destroyed his father’s career and put their family to many challenges. The mother of Jonas had died at a young age, and the aging father was often involved in fights. Eventually his father retired, and his tax office was closed down.

The education Jonas recieved is mainly from his father. This is why he was pro-British for a very long time. His father taught him to become a “Loyalist”. Yet as Jonas grew into his teenage years and became more rebellious, he thought differently towards British people and began to question the other brutalities they committed, like the Boston Massacre.

Towards the end, Jonas joined the Army for his belief of self-government. Serving the British had brought him too much hatred, and he began to think towards the Colonists. After his battle ended, the British forces were crammed to Yorktown and surrendered a few weeks later. In his life after the war, he was able to live in a society where he is no longer hated,  where he is a war hero, and where his own political belief is considered. Yet he is one of the small portion of people that had anything changed for them. Most women’s lives and most slaves’ lives were still their old styles, and the freedom promised by the Declaration was not given.

An Analysis of M.H. Cottman’s Shackles from the Deep

Michael H. Cottman’s Shackles from the Deep is a literary non-fiction about the history of trans-atlantic slave trade and slave ships. This book is about the author re-tracing the path of a sunken slave-ship named the Henrietta Marie, and visiting the various places of history where the slave ship docked and traded Africans, just for the author to raise awareness of the slave trade. Through his expeditions, the author learned of the immense cruelty the enslaved faced, and how they recieved discrimination even after their liberation.

 

Mrs. Luella’s Pocketbook

This story came from page 3 of “Thank You, M’am” by Langston Huges. The concept of the poem is Internal Conflict. In line 3 of the poem, a woman called Mrs. Luella is scolding a boy for trying to snatch her pocketbook. The boy thinks of escaping with the words: He turned around, he could run!” And tries to convince himself to run with “Run!”. But in the end, he didn’t, and he stayed with Mrs. Luella and even managed to say “thank you” in the end.

The Photo supports this poem because it is monochrome, and this story is 70 years old, it really enphasizes it’s age. Also because it’s a vintage bedroom, which is where this poem took place, as where the boy washed his face.

 

My cardboard arcade design:

In this game, it involves using a popsicle-stick catapult to shoot small balls in three hoops, thus earning points.

Answering questions:

my biggest success was:

As it turned out, our game was well designed, challenging, fun, and competitive. Many kids wanted to play our game, also, our game was crafted easily, with not many parts to repair.

My biggest obstacle is:

our game involved a catapult, but soon into it, some of the rubber band structures inside began to suffer from fatigue from too frequent shooting. The plastic bottle cap sometimes break, causing time delay.

One skill I learn/developed is:

When sticking tabs to my design cardboard, put the hot glue line as straight as possible on the cardboard, unless you want to get messy and burn yourself.

Heat transfer reflection

Problem: create a mug cover that insulates it to keep it hot

 

I first think what expectations a insulating cup must have, (define)

I then design a mug cover using the plan but still being a flexible engineer. (design)

Finally, I create as planned (create)

I didn’t have time for improve but I did a reflection (improve)

 

CER:

Claim: My design of cup insulator works well

 

Evidence: The temperature fall of the no insulator is 20.9 degrees Celsius

The temperature fall of the with insulator cup is 7 degrees Celsius

 

Reasoning:  A. My test shows that the temperature loses less when placed in insulator

  1. Heat is an energy, adding thicker walls of felt to a mug takes a longer time for heat to travel outside because the heat conduction needs time, thicker walls takes longer time. The cap also stops the heat from escaping into air.

 

Respond to questions:

 

I am very proud of the look of this “prototype product” because we added cute decorations and minimized the use of hot glue and used light strokes of it if we need to use it anyway.

 

I will make the walls of thicker felt to improve heat insulation

 

One of the limitations to my group is the unable of use to hard plastic. It is more waterproof and will make our group’s product more durable.

 

 

 

 

 

 

"I have no special talent. I am only passionately curious" – Albert Einstein