Champaign-Urbana Community Fab Lab
Illinois Informatics and School of Information Sciences
Champaign-Urbana Community Fab Lab

Daniel Shin – Assignment 5: Textiles

The above images are the images of the drawstring pouch and the embroidery I made during class. This was my first time learning any textile related skills, so it was great practice for my upcoming project.

 

Motive

I decided to make an otter plushie out of the pre-approved patterns. I planned to place it on my nightstand to use it as a smartphone holder while charging. I added embroidery of a charging sign on its clam to emphasize that the otter is a smartphone charging dock. I made a brief mock-up using photoshop.

 

Building Process

I printed out the template of the plushie on the pdf file as actual size.

I cut out the pieces of fabric following the template. I had to keep in mind in which orientation I was cutting so the stretchy part of the fabric is facing the right way.

Completed the head mostly using the sewing machine. The studio was out of fills for the plushie, so I had to use cotton balls instead. Once the head was full, I hand sewed the back of the head to close the opening.

I went through the same process for the body. Once both the body and the head was complete, I hand sewed them together to complete the otter part of the project. I was ready to move on to the clam and the embroidery. 

I found a charging sign online and imported it into Inkscape. I had to do some cleanups, so all the parts were individual parts and not overlapping and had to add some colors too. When I imported the vertex file into PE Design, everything was clean and ready to print. I just had to change the order of the printing since the order was in the black-green-black process. I changed it to black-black-green, so I only needed to change the thread once.

The building process of the clam was similar to the head or the body. I embroidered the charging sign on the fabric first, then cut out the fabric using the template. Used the sewing machine to sew the fabrics together, filled it up, and hand sewed to close the opening. Once the clam was done, I just had to hand sew the clam to the otter’s hands.

Reflection

The entire process took about 6 hours. Using the sewing machine made the process much faster and easier. However, I encountered many limitations from using it. First, I wasn’t able to sew the parts completely accurate. Due to my lack of experience using the machine, the fabric tended to shift around while I was sewing, resulting in some inaccurate sewing. Second, there were several unwanted openings around the edges that the machine sewing did not close it up. I had to hand sew these parts to close them. Finally, I wasn’t able to machine sew near the end of the process as the parts got fat and thick duo to multiple layers and fill. I thought sewing was mostly done by machine, but I learned that hand sewing is more reliable and useful in some cases.

 

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3D Printed Guitar Hero Strum Bar

 

 

 

 

 

 

 

 

 

 

For this week’s (two week) assignment, I attempted to replicate the strum bar from the original Guitar Hero controller as part of my personal project to create one of these controllers from scratch. I first started by making sketches for each of the four prompts and doing the two preliminary 3D models. For modeling, I chose to go with Fusion 360 as I’ve used other Autodesk software before and also because Fusion is more geared towards mechanical design which I knew would come in handy later when designing the moving parts of my strum bar mechanism.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

After I had finished those initial steps, I started trying to decide how I was actually going to implement the switch mechanism. I first thought of having a separate spring that would cause the bar to bounce back into place after hit, but decided that it would be complicated for my first go with designing my own parts. Instead, I ended up using limit switches that had a lot of bounce and travel to rebound the bar instead, which simplified the design greatly. I bought some limit switches off Amazon and then used calipers to measure the dimensions and then modeled in in Fusion. I then created slots in the side of the original housing I had created for the strum bar to mount the switches and refined the profile of the strum bar itself to make it more ergonomic.

At this point I decided I was ready to try printing. The first three attempts were complete unsuccessful, with two prints failing due to the printer malfunctioning and the other not having enough filament for it to complete. Finally after managing to get a print to complete all the way, I realized that I had miscalculated the tolerances for the distance between the bar and the switches and there wasn’t enough contact for them to be actuated. Because I would have to reprint the whole thing, I decided to scrap the excessive housing and instead mount the switches on two end caps instead to save plastic and print time. Unfortunately, after printing the new version the holes for mounting the strum bar somehow were extremely tight, which may have been due to temperature fluctuations. I did one final print with a slightly increase hole diameter and it ended up fitting just right.

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Isaac Iyengar- 3D Printed Capo

For this project I chose the prompt that had us make a part we needed. I made a guitar capo, which is a small tool that pushes down all the strings at a particular fret. This allows you to play a guitar in a different key, while using the same fingerings for chords without the capo. 

Essentially a capo is a clamp that can fit on a guitar. Normally these cost around $10+, so I figured 3D printing this part would be a cheaper option.

Below is an example of a standard capo:

Image result for Capo

Below is my first iteration of the capo. I modeled it after the above image. While I got the shape and dimensions correct, this design wouldn’t have been functional since it needs to be two separate pieces with a spring in between to allow the clamping functionality.

I wanted to avoid using a spring and instead wanted to see if a design that was a single piece was possible. Most 3D printed clamps I had seen involved using a screw, however this would be no different than using a spring. 

This led to the design below which was made using OnShape, an online CAD software that allows functionality similar to Fusion 360, but free. I sketched out a design that took the clamp and shape of my previous design, and used a spiral design that could coil to allow flexibility. 

 

Below is the Extruded and Filleted 3D Model of the final design. In the process of designing this capo tried to develop better CAD practices mainly using constraints such as dimensions and tangent tools to produce a more accurate result. The use of tangent allows for connected curves to be much smoother. 

In terms of the design I think this design allows future improvements, such as the addition of a case for guitar picks (often misplaced), and potentially personalization. Personally the design reminded me of the Leaf Village symbol from the show Naruto, so I’ll play around with the CAD more to resemble that while still having the clamp functionality. I’m not a huge fan of the way 3D printed text looks, so instead may make a sticker or paint it. One thing to note this design was made for my guitar which has a slightly larger fretboard, so this design may not work as well for smaller guitars. 

Below are three viewpoints of the piece.

 

Final Product:

I don’t want the plastic hitting the strings directly as this may produce a buzzing sound on the side that touches the string, and scratch the wood finish on the side that touches the neck of the guitar. To solve this I will add some foam tape to the portions that are in direct contact with the guitar. The print itself turned out very nicely and is able to function as a clamp on the guitar strings, however it needs to press on the strings with more force. The addition of foam or hard rubber to the clamp portion will solve this issue. The print took 1 Hr 30 Min to complete, including a raft. There were no issues with the print, my one worry was the lack of support for the curved clamp, but I chose an appropriate angle of incline, such that the printer had no issues with it. 

I have noticed the hinge isn’t able to retain its original shape after multiple uses. Potentially need to increase the infill of the print to fix this. 

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Joy Shi- 3D printing

In the last two weeks of lab, we learned about 3d modeling and printing. During the first week, we learned the basics of using Tinkercad and Meshmixer. They were relatively easy to use, but very time consuming. My attempt on making a castle and alien were not that great. However, this exercise was a good introduction on how to use Tinkercad, since I have never used it before.

On the second week, we dived into using 3d scanning. This mostly dealt with scanning an object or person. The hardest part in the scanning would probably be trying to get all the angles of the object or else the object would have a hole somewhere.

For our assignment, we were required to make four different sketches of things we might possibly print later on. After some thought processing, the top two that I was considering printing was either the utensil prompt or the part I need prompt.

In the utensil prompt, I designed utensils that can be stacked on top of each other. This is so that less space is taken up and portable to  take while camping or traveling or everyday use. To make sure that the utensils won’t fly everywhere, I decided to add a ring, like the ones seen on measuring cups, to hold everything in place. Lastly, I added a little stand on the neck of the utensil. The purpose of this is to make sure that the utensil doesn’t touch any dirty surfaces.

 

However, in the end, I decided to actually print the part I need prompt. My original idea was to build a stand to wrap my chaotic wires around, so everything is more organized. The box on the bottom would be to put adaptors or chargers.

After showing one of my roommates my design, she thought it would be better to make it into a jewelry stand. This is a good idea since all my jewelry are all tangled and missing. Having them in one place would definitely benefit me. So I decided to get rid of the box on the bottom. 

The actual printing process took a bit longer than I expected. For some reason, I did not check the measurements of my stand, so it turned out a bit smaller than I anticipated. However, I’m still happy with it.

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Holly Situ – 3D Printing

 

These are the alien and castle it lives in, as result of the class activity. I haven’t used Tinkercad before, but I have created/ moved stuff in 3d spaces before in games. It was a little tricky to get the hang of the navigation and things took a little longer than I would like but I still had fun looking though the interface and creating my model.

 

 

 

Here is the sketches of the prompts, depicted on the left. 

For flatware I to focus on compact and portableness, so I made a swiss army/ multi-tool type design with foldable and removable elements. It was difficult to manifest my idea through the 3d software since there were some complex mechanisms I wasn’t sure how to create from scratch, so I used the shapes provided from the software. I don’t think realistically it would be  as feasible though since it is not very collapsible. 

 

For my identity prompt I wanted to highlight my place of origin, living in Chicago Chinatown with the Chinatown gate with my personal branding.  The gate has elements of traditional Chinese architecture but was designed for the American / Western context, so I thought it was fitting. I added the stars of the Chicago flag because I really like the design,  made the column of one a block I as homage to UIUC while the other one would have an imprint of a bike wheel since my favorite hobby is biking.

For reproducing of an art piece, I wanted to highlight my favorite contemporary artist, Takashi Murakami, specifically one of his character Kiki. I wanted to make a figurine of Kiki without the other elements, as a cheaper alternative to buying a designer toy, and reconstructing her would be an interesting challenge I want to take on. 

Lastly, for the part/thing I need, I wanted to make a pineapple shaped planter for a succulent since I would like to incorporate more greenery in my house.

 

 

I decided to 3d print Kiki. The left image was the reference I was working for, but I intentionally left out the ball and stick since it was more complex than my skillset at the moment. My mockup of Kiki on Tinkercad on the right. The eyes were the trickiest part, since I wanted to incorporate the pupils. After 30 minutes of printing, I had the figure though I had to remove the supports manually. 

Image result for takashi murakami kiki

 

 

 

 

 

 

 

 

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3D Printed Jewelry Tree

For this project we were prompted to sketch out ideas for four different prompts: a new take on dishware, a cultural item with a personal flair, a 3D version of a work of art, and an original item that we need in everyday life. My sketches for these prompts included utensils and a cup for your enemy (looks like they work but they don’t), a fan that looks like piano keys, a 3D version of Hokusai’s Great Wave, and a jewelry tree.

Then for the two required 3D designs I chose to create the piano fan and the jewelry tree. I constructed both designs in Autodesk TinkerCAD, whose interface I found easier to work with than Autodesk Meshmixer or other programs. Additionally it’s online, so there’s no need to worry about transferring files when working on different machines. The fan surprisingly took quite a bit of time to make, but only because I didn’t realize you can move objects vertically until much later. Just the process of learning a new program I guess.

As you can tell, if I were to actually build this in real life I would need to make the individual slats much thinner, but for the sake of ease of working with them in the software I left them at that width. A small hole was bored through where all the slats connect to put them all together with a string tassel. 

 

 

 

After finishing this design, I then chose to create a jewelry tree for my final project; I’ve always needed somewhere to store my earrings instead of just throwing all of them into a metal box. I got to work breaking up my design into the circular base, the “trunk”/base, the branches, and the leaves. In the process of figuring out how to create the unique leaf shapes, I learned from other creators’ videos that you can use shapes as holes to refine/smooth out existing shapes, e.g. using an elliptical cylinder to clean up the leaf edge. Here’s the final design for all of the tree’s components. Looking back I’m really not sure why I printed all the leaves out separately instead of already connected to the branches, as this ended up being a little cumbersome to work with later, but overall I think this design was simple and elegant enough. 

 

 

 

 

I exported the design to an STL file and loaded it onto a Flash Forge. The whole set of components took an hour to print, and most of the parts turned out ok. However, about 40 minutes in, unfortunately the base trunk warped and popped straight off the platform, perhaps because the cylindrical shape was more susceptible to bending. I had to go back in TinkerCAD to create a rectangular prism base and print that, which took another 15 minutes.

Luckily the parts printed pretty cleanly and didn’t break as I was concerned for. Once I got everything I just needed to assemble it, which just took some good old super glue and patience. 

 

 

 

Here’s the final result:

The final product turned out a bit smaller than I had anticipated because I overestimated the size of the printing bed. I realized I should’ve put in two holes instead of one for the leaves (as earrings come in pairs.. forgot to consider that), and I would like to make a bigger base so I can put hold other jewelry inside it. Additionally I should’ve printed four branches instead of three, but I didn’t anticipate having to print a four-sided rectangular base. Overall though I’m pleasantly content with the result, and look forward to using this practically. 

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3D printing assignment

For the past two weeks in the Makerspace 490 class, we have been working with 3d printing. I had not previously worked with 3d printing or scanning or modeling for that matter,  so I was excited to learn about it. I was at first a little intimidated by the 3D modeling required to design an object to print. The first thing I made, an alien and a castle was not that impressive.

Luckily, I got somewhat better at using the Tinkercad program within the following days.

We were instructed to come up with four different possible designs, following different prompts. At first I really wasn’t excited about most of the prompts and had trouble finding inspiration for them. Eventually, I managed to think of some ideas. I had two designs that I thought were good enough to actually turn into objects. One was a design for a bowl that has a curved spoon that attaches to the side of it. Modeling this in Tinkercad took me some time, but I was a lot more pleased with the outcome than when I made my alien.

The other design was for a patch cable holder. I use a lot of audio cables at home, and I had been wanting to buy something to hold all of them anyways, and I thought, maybe I can just make one. This is my initial design for the patch cable holder.

By now, I was fairly pleased with my design. I feel like I had gotten much better at using the 3D modeling software, and I was excited to make this thing a reality, and have something to organize my patch cables with.

So far so good, The above image is the beginning of the printing process. The print took about an hour and a half. However, when it was finished I became disappointed. I had designed it to be really to small to fit any patch cables into, and also the prongs on the end were too thin and broke off very easily. You can see in the next picture that I had snapped them off.

So, I went back and recreated another version from scratch, hoping to get it right this time. My second version has more space for holding the cables, and was slightly thicker to be sturdier. I decided to not include lips on the prongs, since they might just snap off anyways.

This design was more minimal, but I felt that I sort of had to get the basics of it to work first and foremost. I made the prongs farther apart so that cables could fit in between them, and also made them longer so that more could fit in each individual slot.

Above is the final product, and I’m pretty happy about it. The cables fit in there fairly snug and I think it will work well. I’m planning on using some double sided tape to attach it to the side of my modular synthesizer case. I do plan on continuing to refine this design and make it look more appealing, and more sturdy, but for now I’m happy.

This assignment was a big one but I learned a lot about 3d printing, but also design in general. It takes a lot to design something even simple and it doesn’t always turn out like you want. I encountered a few problems while trying to accomplish this, but in the end I created something I will actually use. 

 

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3d print assignment

3d models

I created a geometric 3d model of a toothbrush holder first. 

I created an Indian Om symbol with leaves to represent nature.

I scanned myslef and converted that to a 3d model. 

 

 

Final Project

I created a toothbrush holder for my final project. I created a smiley face on tinkercad with cylinders. I had to import an svg of a semicircle to create the smile on the face. Then I imported an svg of petals to create a flower around the smiley face which I thought could also be close to the rays of the sun. 

Reflection:

I really enjoyed building the toothbrush holder. It’s something I needed. I created a smiley face to indicate positivity and because it’s easy to correlate teeth with a smile. And I went with a flower because it reflects something in nature. The overall process was fun. Initially I had a more geometric figure that I wanted to use for my toothbrush holder but I decided to build something entirely different later on. 

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3-D Lipstick Holder

 

Lab, part one Thursday 9/26Thursday 9/26, meshmixersketches

 

Kerry James Marshall painting that I was interested in using for the third prompt. I wanted to add an apple or a book into the hands of one of the children. I was interested in this painting because it is in a library in Chicago. The library itself is really old and has marble everywhere. The branch reminds me of those banks from the early 1900s that are now converted into schools, office buildings, homes, etc.

Screenshot of my 3-D face model scan. This shows the areas where the scans were missing and could not fill in the shapes. Lab 10/3

I could not figure out how to make a diamond shape (the argyle pattern diamond shape from my drawing) on my own with the tinkercad, but I saw that they had a diamond shape. I was interested in having a diamond shape with two supporting legs, but I went with the option available to me as I was not particularly familiar with how to work the software to accomplish what I wanted in my mind.

I played with the amount of diamonds that I wanted. I made the walls thicker and I agreed to have mini-diamonds.  Mock-up of the spider, cutlery, and the art-deco-esque bookshelf for class on 10/3

Re-design of the shelf with more diamonds

Initially, thought I would have my mini-shelf for my makeup in the designs of the above picture as I wanted something that was flat. Also, I did not originally want a makeup holder. I had wanted a mini book-shelf, but as I thought this over more, I realized that it would require a lot more work to create a mini-bookshelf and more expertise. I mentioned this idea to Duncan and Maxx and they both suggested that it would need to have mixed media as it could not all be made with the 3-D printer. Consequently, I went with an Art-Deco-esque lipstick holder. Also, I tried to play around with different shapes to see what would hold lipstick. I became really interested in using a pyramid shape so that I could stack them, but I worried that the lipsticks would fall off as the base was not particularly wide. Thus, I tried to make the divots wider. However, they did not appear to be the dimensions that I had in my head. Nevertheless, I wanted to make a test print. I decided to see if the divots were big enough with a test print, but I could not print both the pyramid and the diamond shelf. Therefore, I scrapped the idea of trying two different objects.

This shows that the pyramid structure was too big to allow for printing of it and the diamond shelf.

the length of time to make the diamond shelfMy attempted first print

It took several tries for me to get a finished product. I initially could not find my project on the Epique network when I went to the computer to put my file on a hard drive for the printer. This led to several minutes of going back and forth between computers to find out what I was doing wrong with the save process.

Additionally, I had tilted the shelf (to try to create my original idea of it being held up by two support beams) and it was suggested to me to just lay the object flat to eliminate the need for support beams. As a result, when this was changed, for easier printing, it created hassles for several of the prints.

For instance, the picture above shows that the 3-D printer was having a hard time printing the diamonds. The parts were frayed and weren’t melding together. Thus, this print was cancelled. It was decided that a raft would be a way to stabilize this problem. However, the second print had the same issue. When we went back to the original print on the computer, even though the shelf was laid flat, it was still levitating off the print surface, so that is why the diamonds were not stable.  

This took approximately 4.5 hours to print. If I were to do this assignment again, I would get rid of the mini-diamonds or make one or two small ones. I would have three or four large diamonds. Some of my lipsticks were too round to fit into the holes. Overall, I am pleased with the effort. 

Finished product

 

<iframe width=”725″ height=”453″ src=”https://www.tinkercad.com/embed/4lhdzTf1eYk?editbtn=1″ frameborder=”0″ marginwidth=”0″ marginheight=”0″ scrolling=”no”></iframe>

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Charis Ryu 3D Printing

Alien/Alien Castle (Tinkercad, Meshmixer)

The image on the left is the alien castle I created with Tinkercad and Meshmixer. I imagined the castle having a very simple design with the ring floating around the pole, which could be a signal machine for them to interact and communicate with other aliens. The right image is what I thought alien would look like. 

 

4 Prototypes

 

I created paper prototypes for the 4 prompts given. I chose to design the actual 3D models of the dishware and art piece prompts. The image of the dishware is a multipurpose/functional pot that could be used as a cup, a bowl, a plate, a pot, and a pan. The handles, bottom plates, and the lid can be attached/detached to serve the user’s need and purpose. The second 3D prototype I made was an alteration of Louise Bourgeois’s Le Lit Gros Edredon. I created the prototype and the final 3D printed version as below. 

 

Final Product & Face Scan

This is the original 3D model I created with Tinkercad. I created the bed frame and used 3D cloud models to create a mattress/blanket of clouds as clouds make me feel comfortable. Then, the lo-fi version of myself is lying on the cloud bed. 

During our lab session last week, we got a chance to scan our own faces. I used this 3D model of myself in the previous 3D prototype. The final prototype looked as below.

The pink part of the model is my face. I included myself and a 3D model of a cat in order to create more personality and individuality to the piece. While the original piece had two lovers in bed together, I had my cat and myself to represent mental peace and comfortable atmosphere, which was further enhanced by the clouds. 

These are the 3D printed result of my prototype. It took around 7-8 hours. I then spray-painted it with the primer in order to paint the model with nail polish. 

The outcome! I painted the model with the combinations of blue, yellow, white, brown nail polishes. It’s hard to see in the picture I took, but I also used glitter on myself, to represent the delight and peace I’m having in this art piece. 

 

Final Thoughts

It was pain in the ass to get rid of all the supports as there were so many. I couldn’t completely remove them from the model, so unfortunately some parts look a bit messy. Next time, I would like to create a design that doesn’t need as many supports. Although it took 7-8 hours, it was a very fun experience, it was surprising to see how accurate the 3D printer can print the model. 

 

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3d Printing and Scanning

This week we worked on 3d modeling and 3d scanning. For my project this week, I wanted to make a cable holder that would organize some of my cables since I sometimes have trouble located my chargers.

These were the different sketches that I did for the four prompts:

For the utensils, I decided to make a utensil that would be compact, so I made a utensil that holds each fork, knife, and spoon that would act similarly to a swiss army knife. For the culture background, I decided to do farming since my ancestors did a lot of farming and add electronics to it to more match my current major. For my art piece I created a scene based on Starry Night by Van-Gogh. This was just 3d renditions of the buildings with the mountain as well. For the final sketch, I wanted to make a cable holder since I don’t have the best cable management for my chargers. As a result, I decided I would like a holder that would be tailored to each individual cable. This was the idea that I decided to 3d print.

These two are the 3d models I created for the compact utensil and the cable holder:

Utensil:

For this one I attempted to use meshmixer to get more of a spoon shape, but the model didn’t have enough edges near the spoon to be able to form it into the shape that I liked, so as a result, I left it as what is in the model.

Cable Holder:

For the cable holder I made two separate models: one that held my laptop charger and another that held my PS vita charger. I ended up printing both of these and attaching them together.

This was the final product of the cable holder. Essentially, I made it so that I could attach new holders for individual cables if I needed more. Right now it holds my laptop charges and it allows me to always know where to find the cables when I need them. There are some alterations that I would make if I were to remake the parts. I originally had something on the side to wrap the cord around, but it was too small to be usable. I would make the overall holder taller and larger in order to wrap the cord around it.

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Allison Quinlan 3D Printing

Castle and Alien

My first dealings with 3D modelling went pretty smoothly. We were supposed to create a castle and an alien in Tinkercad. I played around with making holes for the windows and doors with different shapes and tried my best to get all the pieces flush with each other in the way I wanted. I made the alien by stacking a bunch of torus with a dodecahedron on top and grouping them. I also imported the alien into Meshmixer and messed with smoothing the rings to look more like a single object.

Scanning

Using the scanners was very fun, if a bit tricky at first. My group had some difficulty angling the ipad to fit our subjects in the box. After some trial and error and realizing we could change the box size, we each made a scan of ourselves. In our first few scans we accidentally cutoff some body parts, but by my turn we had gotten the hang of it:

I also did a scan using the kinect. Because of the way the camera was held, the model had me leaning at a 45 degree angle, but I was able to correct for it in Meshmixer:

Sketches

For the first deadline, I made these sketches:

 

Flatware – I decided to make flatware that is usable but very inconvenient. On first glance, it doesn’t seem that bad, but once you actually use it it seems impossible. I designed a plate that has a ton of dividers, making each section to small to hold a decent amount of food. The cup has a parabola shape so that it would spill most (but not all) its contents when set down. The silverware is attached together so that it is impossible to actually use the knife and infeasible to use the fork or spoon.

Cultural – I have lived in Illinois my whole life, so I looked into redesigning something important to the state. I’ve long thought that the Illinois flag (like most of the state flags, actually) didn’t seem to represent Illinois very well. Plus, its kind of ugly. For my design, I thought about how Illinois is often described as being nestled in cornfields, so I put a rough Chicago skyline in between some stalks of corn.

Art – The art piece I looked at is called “The Light Inside” by James Turrell. A lot of his work seems to create optical illusions using light. This piece is actually an underground tunnel with light along the sides. However, when seen in a 2D picture it almost seemed reversed. I sketched an abstract shape that makes the actual tunnel part of his piece solid and the blocks of light on the side would be carved out.

Custom Part – The part I need is some kind of organizer for my bookbag. I don’t like digging around through my calculator, pens, earbuds, and whatever else is in there every time I need a pencil. Though it looks pretty simple, I did take the time to measure out the stuff in my bookbag and make sure there was wiggle room so that I could actually fit my stuff in its dedicated compartment.

 

Flatware

I decided to go forward with my flatware design. While creating the writeup about my sketches, I realized that a better way to categorize my design was that they are for very small serving sizes. The plate dividers keep you from piling on too much food and the cup will hold a small amount of liquid even when tipped over. The silverware didn’t really fit the theme, so I redesigned them to be tiny. It would take ages to eat a substantial amount of food with a spoon that can only hold a single pea or a knife that’s almost a chopstick.

We were warned not to underestimate how long it will take to print something, but I did anyway. I ran into several problems while trying to print my pieces. I started with the cup, which was started over twice because of jammed printers. Eventually it did come out, however I promptly broke it. There were supports keeping it upright, but when I tried to take them off I snapped the whole bottom off.

I moved on to print the silverware. Luckily, the problems I had with this one were easy to catch early, so it took less time. The first time I tried to print it I realized the bottom of the spoon was on the platform, but this bottom was lower than the rest of the object. When I tried to print, nothing was sticking because the platform was a centimeter below the nozzle. I flipped it over and printed again, and it came out fine.

The plate surprisingly went without any hiccups, although it did take the longest to print.

Reflection

At the beginning of the semester I said I was the most excited about 3D printing because I’ve been exposed to it a lot but I’ve never actually used one. After doing the unit I’d say it has been the most educational so far. I learned a lot about the best ways to design and position objects for printing. For example, if I were to do the cup again I would print it upside down to avoid breaking it. I also got better at using 3D modeling software. I never realized how much thought goes into making an object the right shape and size. Overall, this experience has shown me that 3D printers are very cool, but very frustrating. I look forward to trying to use them again in the future.

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