Champaign-Urbana Community Fab Lab
Champaign-Urbana Community Fab Lab

Author Archive

3D Printing – Mohammed Faiz Patangia

This week’s assignment was about 3D-printing and scanning. It consists of two parts:

  1. One design using Tinkercad and Meshmixer.
  2. 3D model, which followed the fourth prompt. I created the part that I needed.

For the first part, I created an alien in Tinkercad, and did some modifications to it in Meshmixer.

Alien model in Tinkercad

Modified alien in Meshmixer











The first part was straightforward, because we just had to design a model and not print it.

For the second part, I decided to follow the fourth prompt, where we had to create something that we needed. I decided to create a phone holder for this assignment. The central idea was that, while eating it becomes very difficult to use phone, and it is very uncomfortable to look at the screen and operate the phone through touchscreen. I thought about creating a phone stand that would be helpful to me while eating. I would not need to place the phone on the desk or the table. The phone holder in the stand would be rotatable, this would help me in either browsing on social media or watching a movie. The end goal was to create a smart phone stand that would allow me to operate phone without touching the screen. I realized that it would be difficult to implement that because of the time constraint, so I decided to create just a phone holder.

First Prototype

For the first prototype, my goal was to have basic design of the phone holder. This was my first design in the process, and rest of the prototypes would be modifications to this prototype. With this design, I got a general idea about the look of the phone holder. 

For the second prototype, I decided to add a rotation functionality to the case. With the help of that function, user would be able to rotate the phone 360 degrees. 


Second Prototype


This was very important step, because at this step the design for the stand became a bit different. In the first prototype, the entire stand was one piece, but in the second prototype, the entire design consisted of phone stand and phone holder, which would be connected to the stand. 

Second Prototype – 2, with redesigned phone case.

For the third prototype, I worked on adding one more functionality to it. I also worked on increasing the size of the case and stand. For the first and second prototypes, it was not capable of holding the phone because of its size, so I tried to modify it so that it can hold actual phone. I though adding the functionality that would help user move the phone case up and down. 

3rd Prototype, with up/down functionality


Later, I realized that it would become much more complex and a bit difficult to print the third prototype. So, I decided to print the second prototype. Time was also a very important factor in printing. To print the second prototype, which is a smaller version of the actual phone holder, it took four and half hours. I realized that to print the actual, bigger stand, time and cost both would increase. 


4(1/2) Hours to print


Final Print


This assignment was very interesting, and I learned a lot of stuff from it. Building the first prototype was straightforward, but it took me few hours. There were a lot of factors that were very important to consider in the designing process. The alignment was very important, and I also had to consider the balance of the entire stand. My plan was to design the stand such that I don’t need to stick it to the table. Another challenge that I faced in the process was to design the phone case. It was very important to create the case so it fits the phone stand. It took me few hours just to get done with that step. I had make sure that the sphere in the phone stand fits the hollow circular region in the phone case. So, if I would change the size of the circle then, in order to make it fit the case, I would need to change the design of the back part of the case. Because of that problem, it was very difficult to increase the size of prototypes. If I plan to print the bigger version of the phone holder, then I will have to make it from scratch, everything with larger dimensions. The final print was okay. There was a hollow region in the phone case, to hold the phone. To print the case, the top part was facing downwards, and because of that the entire hollow region got filled with the supports, which became nearly impossible to remove. I faced another problem because of which I was not able to insert the hollow part of the case to the stand. The hollow region needed to be larger or adjustable.

Phone case

Phone Holder

Regardless of the outcome, this project allowed me to learn a lot of new stuff, and the entire process was very interesting and enjoyable.

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Paper Circuit Assignment – Mohammed Faiz Patangia

This week’s assignment was to create a copper tape circuit. The entire assignment was fun, but a bit tedious. This assignment consists of three parts:

  • Basic Circuit
  • Picture with LED’s – Quote
  • Paper object – 3 or more LED’s

The first circuit was pretty straightforward. I had to build a basic circuit. The process was smooth and it worked well.

The basic circuit with switch

The second part of the assignment was to pick a quote and make a circuit based on it. My goal for picking up a quote was to pick a short, but effective quote. The quote that I picked was “It’s the kind of kiss that inspires stars to climb into the sky and light up the world.” My idea for building the circuit was that there would be a switch, which would light up three stars in the sky. The three stars would would represent lightning up the world.

“It’s the kind of kiss that inspires stars to climb into the sky and light up the world.”
― Tahereh Mafi 

For the final part, I decided to build a bat origami. I started from making a prototype on plane paper. I though about how the circuit should be arranged on a very compact paper.

First Prototype

Before implementing the actual circuit, I drew different circuits. It helped me in making the process smoother.

Circuit Drawings.

After drawing the circuits, I drew the same circuit on the origami. It gave me the idea of organizing the circuit on the bat. My plan was to have four LED’s, two of red color and two of orange. The first two red LED’s will be at the position of eyes, and they would be connected in series. Those two LED’s will have a parallel connections with the other two orange LED’s.

Drawing the circuit

I end up making the circuit on origami, but it ended up not working. After putting many hours, I realized that I made a mistake in connecting two LED’s, which were in series. I had to change my entire circuit because of that mistake. After changing the circuit, there was some other problem, which I was not able to figure out. I think that my circuit was a bit complex.

Second Prototype

The second prototype did not work because of some complex connections. So, I decided to create another circuit with much easier connection, all LED’s connected in series. This design was much smoother than the second one.

Final Origami circuit

My final product worked, and it ended up lighting the all four LED’s. It was a bit surprising to me that they worked without any resistors. I thought that I would need resistors, because of different voltage of LED’s.

The best thing about the final product was that no part of circuit was visible from front. The entire circuit becomes hidden, and end result looks neat.

This assignment was surely a rough ride for me. I think that I made things more complicated. I should have started by designing a simple circuit, which would have made the process simpler. It was a challenge to fit the entire circuit in that triangle, and to think that the copper tapes should not touch one another after folding the origami. It was also a bit difficult to manage the copper tape, because the current was not passing through the adhesive side. Many times the LED’s did not light up because it was connected to the adhesive side of the copper tape. I liked how the LED’s were connected in series, and they were lighted up without any resistor connected. Before beginning the project, I though that it would be straightforward and very easy, because of learning about them in physics classes. However, the implementation was not at all straightforward. However, I was happy with the end result.

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Storyboard – Mohammed Faiz Patangia

My storyboard focused on restaurant table. The table would be connected to the phone, and all the features of the phone will be supported by the smart table. Person would be able be able to order food on restaurant’s website, look at reviews on yelp, use facebook, instagram, etc., and at the end check out. It will have touch functionality. Smart table will make the experience less boring, and the user will be able to play games, look at reviews, check social networking websites, and more.

Storyboard – smart table
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Laser Nametags Project – Mohammed Faiz Patangia


I never did laser printing, so I was very excited to do it for the first time. My goal was to create a name-tag that can be used in career fairs. I wanted it to be a bit different from the existing name tags, and I also wanted it to be simple, but detailed.

Current name-tag

The name-tag that I currently use in the career fair is very simple, consists of my name, my standing, and my major. It does not tell anything more about me. For the new Nametag, I decided to add some more details, so that a recruiter can get a idea about the skills/interests.


I thought about not making it very complicated, and keeping it simple. If I would add a lot of complexity to it, then it would be very difficult for a person to read the most basic information about me, such as name, graduation year, and major. So, I decided to make my basic information as a main focus, and additional information to be the secondary focus.

Initial Design

The first design of the name-tag had just my name, graduating year, and my major. These information was kept as a central focus of the name-tag. Later, I decided to add some of my skills and interests to the name-tag. I pulled out my resume, and picked some skills and interests to place on my name-tag. These are some of the information that I placed on my name-tag:

  • Programming Languages: C++, Python, Java
  • Skills/Interests: Data Structures, UI/UX, HCI, AI, Linux OS, GitHub, etc.
Second Design

This was the second design for name-tag. The left three pictures denote: (from top to bottom) Python, C++, and Java. The picture at the top denote: (from left to right): Data Structures, UX/UI, HCI, and AI. The right three picture denote: (from top to bottom): Linux OS, Design thinking, and GitHub. The bottom most, of course, logo of the university.

After designing the name-tag, I thought about the color of it. I decided to make it classic by going with the black-white combination.

My name-tag in making:

Final Name-tag and Reflection:

Final Nametag

This was my final name-tag. It turned out to be amazing, and I was very happy with the outcome. All images, denoting my skills and interests, were very small, so I thought that the laser would not be able to print it with precision. However, I was amazed by the precision; all printed images were perfect, and showed all small details. I loved the entire experience, from designing the name-tag to printing it. I created a name-tag that was a very mini version of my resume. The end result was great, and all the efforts and hours spent in creating it was worth it.

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