BCC Creations – Door Sitter: Our Experience in Making

Posted on May 7, 2017 by Brian Kobiernicki

Our journey of creating the Door Sitter was challenging yet intuitive. Though the three of us in BCC Creations were not engineers, we had used our resources, research and knowledge to create an efficient product.

Prior to choosing to create the Door Sitter we went through a couple of ideas in our brainstorming process. We had first started out with identifying problems that were occurring in our own lives or to those around us. Vishal had stressed on using the Design Thinking Method which was a problem-solving process that allowed us to build up ideas with no limitations. Our first idea was based on our teammate, Carter’s experience with the recreational facilities on the U of I campus. He had noticed how many of the sporting balls were not at the correct PSI and having a decide to test it rather than manually doing it would be efficient. Thus, we decided to create a product to regulate a sporting balls PSI and pumping the ball to the correct amount. However, the more in-depth we got and furthered our research we realized that the product itself would be very complex and the pricing of it may not be suitable for the target consumers. Furthermore, we thought the product would worsen the problem and reduce the efficiency and we wanted to create a product that would be beneficial for more consumers.

Our next idea had helped lead us to our final idea, a Chores Alert System. We thought it would be useful to those in the dorms with roommates, they would be alerted through a text whenever a chore needed to be accomplished. Though we all liked the idea we had continued brainstorming for more possibilities which led us to the Door Sitter. All three of us lived in apartments and had the realization that when we left during school breaks we had no way of checking for breaking and entering which had happened to many of our friends. So we came up with the idea of creating an affordable yet efficient alarm for an apartment that would be able to detect an intruder and sent a text message to the roommates of the apartment.

Making

Once we finished brainstorming and settled on our problem to solve, it was time to determine how we were going to solve that problem, and how we could actually make that solution work. Fortunately for us, we had the MakerLab and Fab Lab at our disposal, not only for the physical components but also their expertise.

We knew that we wanted to 3D Print the housing for the system since we were familiar with the MakerLab, knew we could have multiple iterations, and the general low cost of 3D Printing. Before we could start designing the housing, we had to know what physical components our alarm system would need to function. Only after we settled on the technologies and hardware we were using could we design the housing.

Hardware

Initially, we planned on using an Arduino since we had used one and had experience programming it from our Blinker Boxes during our time at the Fab Lab. We thought we could use an Arduino with a bluetooth module to send notifications, but later decided to use a Raspberry Pi with Kootek Wifi adapter from the Maker Lab. To detect motion, we used an ultrasonic sensor from the Fab Lab. This allowed us to detect motion within a specific range that we were able to physically adjust to about 10 feet at a 120 degree angle. We also picked up male to female jumper wires to connect the Raspberry Pi, sensor, and breadboard together. We powered the device through mini-USB rather than a battery, and ultimately decided against the piezo sound buzzer. To interact with the Raspberry Pi, we used a keyboard, mouse, and monitor from the MakerLab.

Software

Once we acquired all the hardware for the security system, it was time to make the system actually work. We first had to load an operating system (Raspberrian) onto the device so that we could put in the Python code. We were fortunate to have Charlene’s friend lend us his technical skills with the programming. We used Twilio as a service to send the text message notifications to our phones when triggered by the motion sensor. To design the housing, we initially started using Fusion 360 since we had used it for the tutorial homework and our in class workshop with Jeff Smith, but we instead used Tinkercad for its simplicity. Although it is a relatively simple program, Tinkercad provided all the functionalities we needed, with far less complication.

The entire “making” process flowed very well. As the software was being programmed, we were simultaneously physically putting the hardware together. Once we knew how much space the hardware was taking up, we were able to design, print, and refine the housing. The MakerLab provided a great meeting place to work on the project together in addition to supplying the Arduino, wifi adapter, keyboard, monitor, power cord, and mouse. The Fab Lab was also a great outlet to receive advice from and supply us with the sensor, breadboard, and jumper wires.

Feedback & Testing

Given that security product solution is heavily user dependent, receiving feedback and testing the security “door sitter” was vital to allowing us to make adjustments to make the product function properly. The initial tests we ran ourselves focused on getting the device to accurately function as we created it. Functions such as the sensor detecting motion, ensuring the programmed Python sent the text message to a phone, and even connecting to wifi internet connection were processes that were refined by our testing. The range at which our ultra motion sensor detects motion was one capability we spent hours adjusting on our product. The ultra motion sensor has the capability to detect motion for a 120 degree 30 feet radius. We ultimately adjusted the sensor to only detect within 8-10 feet after much consideration about how our product is practically used. Since our the product is meant to run perpendicular with the entryway of a door, we did not want it to trigger a false alarm from movement far away. Taking practical considerations such as false alarms, how the product is used, and what makes most sense for the user were our primary goals when testing the security door sitter.

Furthermore, we tested the door sitter ourselves, collaborating with class members, and finally our team member Brian had his roommates test the door sitter within their daily routine. The feedback we received focused on two aspects of the door sitter. Firstly, where to install the product was something that was not intuitive to users outside of our team. It was not necessarily clear what location to velcro the door sitter box worked best. Another point that was brought up with the door sitter sensor location, was “what if a user has pets such as cats in the apartment? Would that trigger false alarms? “. We resolved this issue by creating an installation instruction manual, that would be given with the product for users who purchase the door sitter. The instructions tell the owner to use the provided velcro to put the door sitter on a wall perpendicular of the entry way that the user wants to be detected. It also has recommendations such as to install it high above if a user has pets.

Secondly, our classmates suggested that a user could easily forget to arm the door sitter before leaving there room / apartment. Our product is currently armed by simply plugging in the power cord. As in once a user wants their residence to be monitored they simply plug in the power, and after a 1 minute delay there motion sensor is monitoring the entry way. Although we could not figure out a low cost way to arm and disarm the door sitter remotely in the event that a user forgot to power it on, we did create a notification system that texts a user to let them know the system is on. This way a user can know based on their message history that the security system is armed, and the text message becomes a part of their daily routine

The feedback we received was generally positive, in that the Door Sitter was helpful in providing peace of mind and information regarding college students area of residence. Most importantly the critical feedback we received was beneficial, because it led to us improving our product by making it seamlessly fit into a user’s life.

Final Product

Our final product The Door Sitter, provides a solution to the need for low cost residential security. The Door Sitter is a personalized sensor set up by door(s) or window(s) to an apartment/house. When the Door Sitter is armed, it functions as an alert security system by immediately notifying resident (s) if and when there is someone that has entered the interior of a home. The Door Sitter notifies resident(s) when motion is detected via SMS text message, so that they are aware of what is happening within their residence and can alert authorities if need be,The customized 3D printing housing unit and instructions makes the Door SItter easy to set up with velcro, and more importantly keeps users mobily connected to the security of their home by knowing if and when someone has entered. Our product effectively monitors and notifies users of activity in a home. The immediate information the Door Sitter provides, gives users peace of mind knowing that they do not have to worry about a break in when they are away from their residence. Furthermore if there is a residential break in, with the alert system residents now have the information to be able to respond. Door Sitter can solve a need in that college students and property owners, have the ability to respond to a residential break with a low cost option for a security system.

Certainly, the BCC team learned quite a bit this semester in terms of the capabilities and process of solving a need through 3D printing, While we are satisfied with the progress we made in creating our own effective product that can help solve an everyday need, we also know that the product is far from perfect in terms of taking it to market. Do to the cost we did not pursue the potential of adding a camera to the Door Sitter. We do think finding a low budget camera to add to the exterior of the housing unit, would be useful in allowing a user to know not just that there is someone in their residence but who. Finally the actual cost of our product is a factor that we need to analyze more if we wanted our product to be on the market. The door Sitter costs roughly $50-$60 per unit with the all of the components. The feedback we received from our presentation suggested that even if we sold the Door Sitter at cost for $50-$60, that price tag still is a bit expensive for our target market of a college student. In our research we found that most in home door monitors are high tech and range from $120-$250. So while the Door Sitter would be a low cost option in comparison to what most security systems entail, we may want to pursue alternative components in collaboration with Jeff Ginger at the Fab Lab to make our product less expensive given our target market.

Overall our team BCC creations, made a product that solves a need with the Door Sitter. We worked over several project ideas, learned new softwares such as Fusion 360, and went through many iterations of the design making process to create a solution. Using 3D printing and the Maker / Fab Lab to create a functioning and tangible final product, was beneficial in providing our team hands on experience of the capabilities of this technology and the maker movement.

Door Sitter Presentation from Brian Kobiernicki

A Semester of Making

Posted on May 4, 2017 by Brian Kobiernicki

When I enrolled in the BADM 395 Digital Making class, I was really not sure what to expect. I had learned about the class while enrolled in Professor Vishal’s BADM 350: IT for Networked Organizations class and thought it might be worthwhile to take. Prior to the first day of class, I had never been to the Maker Lab. In fact, other than seeing a quick demonstration several years ago, I had no experience with 3D Printing or really any form of digital making. My main motivations for taking the class were that 1) I wanted to learn more about the Maker Movement which I knew little about, 2) it would introduce me to many of the resources available at the University that few students take advantage of, and 3) I like the emphasis on learning, growth, and sharing rather than cramming and examination. The fact that the class counted towards my IS/IT major was certainly an added bonus.

I was hoping to learn how 3D Printers work, how to design objects for 3D printing, and different types of 3D Printing. However, I learned all of this and much, much more. I learned about the Maker Movement, different types of fabrication, design, product development, and prototyping, just to name a few topics. I have never considered myself a very “creative” person, so this course challenged me to think outside of my comfort zone. Working through the projects helped me develop some creative skills and further refine my problem solving skills. I am now more comfortable working on product development, a skill that is transferrable to many other processes such as project management. In addition to this, I was introduced to and learned about the following topics.

The Maker Movement:

The first few weeks of class served as an introduction to the Maker Movement. We covered topics such as intellectual property concerns and the success of open source software and devices over paid or closed services. It is here where we learned the learning aspect of the Maker Movement and the importance of learning, sharing, modifying, and most importantly: doing.

Design:

One of the most important facets of making is design. Design for America led us through a workshop to demonstrate the importance of meaningful design. Instead of creating a product and finding demand, we should find a problem and design a solution. Through our readings we learned that products must be desirable, viable, and feasible.

Tinkercad and Fusion 360:

Learning Tinkercad was very easy. Vishal demonstrated the open source online software and we designed our team logos. Even though the program is pretty simple, it makes it very easy to design objects quickly. Our first experience with Fusion 360 was through tutorials before class. Following this series of videos by Lars Christensen, we are able to create a box/housing with a lid. It demonstrated how powerful Fusion 360 really is. We were lucky to have Jeff Smith from Autodesk teach us even more the features available. For my group’s final project, we ended up using Tinkercad rather than Fusion 360 because of its simplicity.

Fab Lab:

We spent three consecutive weeks in the Champaign-Urbana Fab Lab. Although I had soldered in the past, it was my first time in several years. It was a great way to practice making circuits and soldering them together. I was also able to code an Arduino for the first time, which sparked my thought process as we brainstormed ideas for our final project. Finally, I also used a laser engraver for the first time. This introduced me to Inkscape, another open source software (have you noticed a theme yet?) that allowed us to take silhouettes and have them etched into the wood and cut through to form edges.

Prototyping:

The remainder of the semester focused on prototyping. Although I have been through mock product development phases, this was the first time I have gone from identifying a problem to presenting a final, physical working product. David Kelley says “Design is an iterative process” and I found that to be very true. Our prototype went through many versions starting with a sketch on paper to the final version. Between adjusting our coding on the Raspberry Pi to changing the design of the 3D printed housing to adding and removing functionalities, we spent a lot of time refining the project to best solve the problem of a lack of security on campus while addressing the needs of users. Somewhere in the middle of things we were able to learn about 3D scanning, something we could turn into a business idea as Arielle Rausin has. I was able to scan my head and 3D print it. By the end of the semester, we had been able to design, test, refine, and produce a final security system alternative.

An added bonus of the class was being able to go up to Chicago for a day. We visited Deloitte for a presentation on Deloitte’s tech trends and a consulting workshop. We also visited the Deloitte Greenhouse, a space where clients can come in and run through workshops to problem solve and create connections across many levels of their own companies. It was a really unique space and I’m glad I was able to see it. After Deloitte, we drove over to mHUB, a collaborative space where member companies can work on developing and manufacturing products. This is the epitome of the future of making. Members can work together, building off of each others skill sets, have access to collaborative and shared workspaces, and take advantage of a significant amount of expensive, advanced equipment. It was really cool to see Making on a commercial scale.

The end of the semester is bittersweet. While I’m excited for the summer and to be interning again, I am going to miss this class. We formed such a great community together and learned a lot from Vishal, all of our guest speakers, and each other. I’m glad I was able to enjoy this class and challenge myself these past few months.

Seeking Advice

Posted on April 9, 2017 by Olivia Klein

Last week, my team and I still had a lot to decide. After the previous week of completely changing our product idea, we had a lot of ground to make up. We were basically starting from scratch. We still did not have a clear product idea and wanted advice on where to go. So our goal by the end of class on Monday was to make a plan. We decided on a design. Our design was to have on piece that had a notched design attached to the door. Then we would have a moveable part that moved in the notched part to slide out to ajar the door and slide back in when you would want to door to close. We were unsure on what materials to choose, but we were thinking of using thick metal and coving it in a rubber resin.

The next day we went over to the Fab Lab seeking advice. When we got there we showed them our plan. We went back and forth on what would work and what would not work. We decided that using metal was not the way to go. It in the end would be very expensive and we would probably have more luck with either wood or plastic. The problem we might have with wood is that we might put out more effort and time than necessary. They suggested that we us CAD software to try different variations and we could always print it and see how or design works. Going to the Fab Lab was very helpful because we had a better idea of where to go with our design!

Now we have to figure out exactly what we are going to do. We have thought of two designs so far that we have run through this past week. One design was like the original slide out the side of the door. Another design we had was to have something we could slide a bendable material to ajar the door from the top. These ideas are similar, but go about ajaring the door from different sides of the door. Currently we have not decided on which design we will choose, but hopefully by class on Monday we have made that decision. I think it is better that we have thought of different options to go about solving our problem instead and drawing a blank. This is a process we are consistently going through.

Soldering & Putting Together The Light Box

Posted on March 19, 2017 by phleung2@illinois.edu

Wires are wrapped together and dangle like gruesome tentacles. A foul smoke rises in the air as the iron touches the metal. Silvery blobs form between two pieces of metal. The process of soldering is underway in the laboratory.

The third and final workshop at the Fab Lab was learning how to solder. I had no prior experience to soldering before, so I was extremely interested. The process of soldering is joining multiple pieces of metals together by melting and adding a filler metal. This results in a permanent connection between electronic components.

Looking back the process was fairly simply. We had to connect all our materials together using a soldering iron. A LED would be connected to a resistor, which would then be connected to a wire. The main concern was using knowing how to safely handle the soldering iron.

The three main safety procedures were to place the soldering iron back into its holder when finished and to never pass the iron to another person, the second was to not breathe in the gas being released when joining metals together, and to wash our hands afterwards since the materials contained lead.

During the workshop, I had difficulty getting the two pieces of metal to stay connected. In addition the metal wires were hard to twist together since they were small. I was one of the last to finish after carefully soldering all the wires together to create an octopus-shaped creature.

Once the soldering was finished, we tested them on our Arduino boards to see if the LEDs worked properly. Taking my time soldering had paid off as mines did not run into too many issues.

I laid out all of the components for my box on the table and began putting everything together. We had to make sure the wires were not touching one another and that the battery component was sticking out of the backside of the box. A couple drops of hot glue and a few burns later, the Arduino Light Box had been completed!

Instructables provides an easy to follow guide on soldering that can be used to apply these skills for your own project along with other projects that can help you practice your skills. Additional resources include a comic of soldering guidelines by the NASA standard.

The Final Product

Posted on March 19, 2017 by Olivia Klein

After three of making at the Fab Lab, we finally completed our light-boxes! For me week one was all about learning how to laser cut and designing the outside of my light-box. Then week two was learning about coding and testing an arduino. My final week at the Fab Lab was dedicated to soldering my arduino.

I have had zero experience with soldering. I did have a few concerns though. I was concerned I would burn myself and that i would soldering the wrong wire. Recalling from the time I coded and tested the arduino the previous week, I found connecting the wires slightly confusing. If you put one wire in the wrong spot then it can throw off the entire arduino. Although I founded soldering easier to pick up than I had previously thought. We were given a brief lesson of how soldering works and then the soldering began! We first connected all the wires together by twisting their ends together to make sure that we ad the structure correct. Then we soldered the connections to make them permanent. I found it crazy how fast the soldering metal would melt and the solidify. A few good tips I learned from soldering were:

Clean your iron off on the sponge.
Do not touch your eyes or face once you have touched the soldering metal.
Do not hand your iron to someone else.

These tips were the keys to my success!

After I had completed soldering then I had completed all three stages in developing a light-box. The only thing left to do was assemble it. Now that everything else was done, this part was simple. To assemble the box, you needed to put the arduino inside the box and assemble and glue the box around the arduino. Then you are left with a completed light-box!

These past three weeks have given me a lot of experience with developing a product from start to finish. It has given me great insight to somewhat of what it takes when you actually start developing a product. You need to individually develop each component of your product. This reassures that each part is working properly. Then once you have done that you can confidently. I will take what I learned with me to make my team’s product for this class. I have really enjoyed these past three weeks and everything the Fab Lab has taught me!!

Laser Cutting-Patience is a Virtue

Posted on March 18, 2017 by Tiffany Kuo

This week wraps up the third and final session at Fab Lab. It gave us a sense of achievement as we were able to put together everything we’ve learned in the past 3 weeks into our final product–a personalized LED lightbox.

In this session, my group experimented with laser cutting. It’s a manufacturing technique that utilizes a laser which creates a beam of light to cut or raster on a panel of material. Common material used includes wood, acrylic plastic, and paper. For this project, we used Russian birch plywood.

To create our design for laser cutting, we used a program called Inkscape. It’s a free and open source vector graphics editor that’s similar to Adobe Illustrator. It was pretty simple and straightforward to use and we learned how to convert a bitmap image downloaded from the Internet into a vector image, so that no matter how you scale it, the edges will be just as sharp and not pixilated. In order for the lines to be cut later on with the laser, it has to have a thickness of 0.001”. As for raster engraving, the darker the shade of the image, the deeper the raster. After designing our images, we saved the file as PDF and brought it to the laser machine to start the cutting process.

Staring at the laser machine while it did its work was actually entertaining, as shown in the video. We had to keep an eye on it the whole time to ensure it doesn’t catch on fire (which they said usually doesn’t happen, but who knows).

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It took about 10 minutes for the machine to cut the 6 pieces as well as rastering 3 sides of the box. Fortunately, mine came out quite well though I had to use sandpaper to smooth out some of the edges. The next step was the exciting part–putting everything together. It took a lot of time and patience to assemble all the parts of the Arduino, LED lights, and wooden box with a hot glue gun, but in the end it was well worth it.

Oh so magical.

Punny play on words 🙂 You go to U of I, you know it’s about the corn life.

My personal logo!

The major takeaways I’ve gotten after these 3 wonderful sessions at the Fab Lab:

Technology is great and so much more than what we normally see. It’s not just about endless coding like what we usually imagine CS majors and software engineers do all day. The Fab Lab has taught me that it’s about combining different skills (coding, designing, soldering, fabricating, etc.) and sparking your inner creativity to make a variety of things, both for personal use and for the benefit of the society.
Patience is a virtue. Yes, it’s triple cheesy but it’s true. I’m not kidding about the number of times I had to tell myself not to get too frustrated, whether it was soldering wires, assembling the LED, or gluing the final product together. This also applies to anything you want to achieve in life.
Collaboration is key. You won’t go far trying to do something by yourself. Every person you meet knows something you don’t, so by sharing ideas with others you are able to accumulate a lot more knowledge which will help guide you in your creations.

Just to finish it up, I’m going to share a cool project that was done through Fab Lab: a 3D printed boombox. The board is written with Arduino language and can play music using an SD card and a 9V battery. I’m sure this bad boy will serve you well at a house party. 🙂

Week 7 Summary: Building on Our Skills in the Fab Lab

Posted on March 16, 2017 by Brian Kobiernicki

In Week 7 of the Digital Making Course, our community of Makers once again ventured over to the Champaign-Urbana Community Fab Lab. Similar to week 6, our class broke into our three groups to work on the next rotation in making the Blinker Boxes. However, since we were already familiar with the layout of the building and the resources available to us at the Fab Lab, we were able to hit the ground running. Once again, our three groups were split up to working on Coding with the breadboard and Arduino, soldering the electronics, or designing the press-fit boxes for laser engraving and cutting.

Our time in the CUC Fab Lab serves many purposes. First and foremost, it provides us the opportunity to practice skills that can help us with our own making endeavors. It is especially helpful for our project groups to develop a diversified skill set that we can utilize on our semester projects. The workshops at the Fab Lab also familiarize us with the technologies and physical tools available to us. Learning from the staff also helps us get a feel for the greater Maker Community and hearing about their personal projects helped us understand their skill sets and how each of them may be able to help with our projects. Finally, spending time in our own Maker Lab, the Fab Lab, and with all the staff and volunteers gives us a better idea of the Maker Movement that is revolutionizing businesses across the nation and around the world.

Team Supra’s Concept

As we keep going through the semester, we are rapidly approaching the design and prototyping phases of our semester projects. All of the project teams are refining their “How can we” statements while defining the actual problem they are looking to solve. Our first project idea submission was due on Wednesday of Week 7. To give you an idea on some of the concepts the class is working on, Team IJK is trying to help college students decrease stress by using indoor gardening. Team XNihilo is attempting to have busy professionals or college students drink more water. The MakerLAX is hoping to “help teenagers, young adults, and anyone else who struggles” tie a tie properly. Team Zerott is trying to improve patient satisfaction at hospitals. In Week 8, the project groups will be moving forward based on the feedback they have received. Once again we will be submitting our “How can we” statements, but this time we will include a concept details, key components of the solution, the capabilities of team members, outside resources for skills and fabrication tools, and any information resources identified.

Odelia spent this week in the computer section of the Fab Lab code the Arduino for the Blinker Box. Odelia said, “This was my first time actually seeing a computer board up close and I was definitely quite surprised by how it looked. Personally, I thought that it seemed quite fragile and easily breakable. However, it was quite sturdy and it could hold quite a bit of force. Along with the Arduino board, the following things were included.” After setting up the circuit and trying to adjust the code, she found working with the light sensor was the most difficult part of the lesson. I think many would agree, as the range of values corresponding to which LED flashed depended on the specific sensor and how bright the part of the lab you were sitting in was.

Chase spent the class time in the electronics section of the lab soldering his LED’s together. Reflecting on the class , said “the instructional course ultimately proved to be very time consuming and required incredible delicacy, there is little doubt in my mind that this is a crucial tool in any maker’s arsenal of building tools.” For many in the class, this was their first experience with soldering. However, we all were able to pick up on tips and tricks such as using the “helping hands” or tape to hold wires down while soldering multiple pieces together. By the end of class, Chase and his group mates were able to wire the LED’s and sensor into the Arduino he programmed in Week 6 and the LED’s flashed as planned! Finishing off his post, Chase, like many, said he hopes to “incorporate soldering in some capacity” into the final project.

The final phase of the Blinker Box is the making the press fit box. Kenny wrote about using the free Inkscape software to design his box. By taking images from the Internet and vectoring them using the Trace tool, the images became compatible with the laser. Kenny chose artwork from one of his favorite designers to put onto his box. Once it was finished, he said, “It was very rewarding to be able to see something you design on a computer come to life in a matter of minutes. There was something satisfying from watching it go back and for until your vision comes true.”

All of our blinker boxes are coming together as we build on our skills at the Fab Lab. Week 8 will be the last class session in the Fab Lab but many of us will be back to work on our projects. Happy Making!

Final Week in the Fab Lab: Coding with Arduinos

Posted on March 14, 2017 by Brian Kobiernicki

This week we faced the cold and snow as we headed to the Fab Lab for our final session of our 3-week long workshop at the Fab Lab. After working in the electronics area to solder, the laser area to make the press-fit box housing, it was time to work in the coding area at the front of the Fab Lab.

Assisting our group with the Arduino portion were Fab Lab staff members Andrea Vozar and Alexis Papak. After an introduction to the interface we would be using to practice our coding, we started taking out all the components in our kits. To familiarize ourselves with the basics, we set up a simple circuit and opened up some example code that would cause an LED to flash on and off. We were than challenged to change the code so that it signaled the SOS message Morse code. After adding a few lines and changing some values then uploading the new code to the Arduino, I was able to successfully make the LED signal SOS. Then we were challenged to add a second LED and code it so that the lights alternated flashing. After changing the existing code and adding more lines to accommodate two separate LED’s, the lights alternated flashing.

Once we were comfortable with our introduction to coding, it was time to start working on the Blinker Box. We followed a schematic to assemble our soldered LEDs into the right pins, ground, and power source. Then well pulled up the coding for the light box and uploaded it to the Arduino. Now we had to test the photo resister to determine the range of light intensity that was being sensed. After a few attempts of trial and error, I was able to identify an appropriate range for the LED’s to light up at and eventually cycle through flashing. Finally it was time to assemble the box. Using the press-fit cutouts from last week, I put the LED’s and photo resister through their respective holes, and then assembled the box around the Arduino. After 3 weeks of hard work, the project was completed!

Over the past three weeks, working at the Fab Lab provided a solid foundation of 3 different areas of making. Not only do we have a tangible object to show off our learning, we are also comfortable working in the fab lab and can now use what we learned on our group projects and hopefully our own personal projects. To help with personal or the group project, I found Hackster.io, an online community geared towards helping people learn about hardware. You can search difference projects by proficiency level, application type, hardware unit, or many other options. it reminds me of Thingiverse in that you can search and use product categories as well as the community platform it provides. For the group that is considering Hydroponics product, I found this project using Arduino and Raspberry Pi, which may be helpful. The Arduino website also has a great collection of resources for learning the various Arduino products, programming, and offers several tutorials to work through. Happy Making!

The Hands-on Intro to Digital Making. Part 2: Laser/Vinyl Cutting 7 Inkscape

Posted on March 13, 2017 by Taofik Sulaiman

CU FabLab. Located at 1301 South Goodwin Avenue, Urbana IL.

This week we got to return to my favorite part of the class for the second part of our three-part FabLab series. I got to immerse myself more in the hands on part of making. This time around I was more familiar and comfortable in the CUC FabLab space but I wasnt working with arduinos or electronics this time around. We were at first just shown the sample lasercut box and given back our kits below.

At first, I was a little hesitant because I had thought that we would have to do the measurements by hand or use some form of Computer-aided drawing (CAD) but after listening to their explanation on the process of Laser/Vinyl cutting and engraving, I became more relaxed and interested in learning the tool they mentioned. Instead of using 3D CAD for prototyping like the usual, we used a graphics package called Inkscape to design the outline of each face as well as the graphics that we would engrave on the faces. Here we learned that the laser cutter performed two functions: Vector cutting which is when the laser cuts entirely through the wood or material and creates a blackened outline from the burn of the laser and the Engraving which is when the laser does not cut through the wood but etches a silhouette we created on Inkscape onto the wood in a darker unburnt shade. So essentially, laser cutting is a form of subtractive manufacturing where they take a flat piece of material and cut out shapes to be assembled into a hollow structure or skeleton of a solid object.

Lasercutter vector cutting the outline through the wood

Before any of this we had to create the outline/shape on inkscape. There we learnt some of the basics of Inkscape and how to navigate the environment to use the tools available. We used a website to create the box press fit outline as it was much ore convenient and efficient than manually sketching it out. By putting the dimensions of the box in the website, we were able to adjust the settings to create our press fit box in a matter of minutes. We imported pictures from the internet, and used tools to create our own shapes combining them into cool graphics to be engraved. Some of us even went further to create complex graphics such as the mythical creature I made which is a black panther with dragon wings as well as the “Illini light bulb” that I made which is a pun for the purpose of the lightbox we are making. But to convert these images and outlines, we had to create the Bitmap paths to turn them into silhouettes that the laser cutter could understand. By doing all these, I learnt how powerful graphics are in making designs and products more attractive and personal.The thing about the lasercutter environment below, is that it only recognizes specific colours: black as engrave space, red for vector cut path and white as material.

The Lasercutter Final Print Environment

My Final assembled press fit box. View 1

My Final assembled press fit box. View 2

The cool thing about laser cutting is that not only is it fast and material efficient, it can be used on many other materials. the most common is wood and glass/vinyl but you can also laser cut metals, paper, foam, cork, silicone and so on. You can learn so much more here at this link. The Stanford Product Realization Lab is making great products there and exploring much more materials. But the most impressive thing to me is the innovative use of lasercut patterns to make flat materials curved or bendable. They way they do this is by laser cutting thin lines and holes in the area that is desired to be flexible in such a way that there would be more freedom for that section to be less rigid and be able to stretch and hence be flexible.

Now with all this the final outcome for our lightbox should look like the sample below. I am looking forward to being able to incorporate this into our project this semester.

Sample final product for the lightbox.

Week 6 Summary: An Exploration of the Fab Lab Opportunities

Posted on March 12, 2017 by Chase

This week we engaged in the second phase of a continuous three-part series meant to offer exposure to the myriad of activities offered at the Champaign-Urbana Community Fab Lab. The Fab Lab, although the majority of the class was unaware of its existence prior to this semester, is a leading-edge open and collaborative workspace for design, creation, and printing through the use of computer-driven technologies, such as 3D printing, lasering, inkscape, and soldering. Below is a picture of one of the spaces within the workshop.

One of my favorite aspects of the Fab Lab is its openness to the entire community, irrespective of whether the makers are students or local community members. Everyone is welcome and simultaneously given the resources to collaborate, share, and implement their ideas. Since the making space offers such a vast array of opportunities to its various users, the class was divided into three separate groups during our first session, with each group rotating between the three main functions of the lab: laser cutting, soldering, and coding.

In Brian’s most recent post, he examines the laser cutting portion of the project. The objective of this part was to assemble the wood cube that would house the photo dependent LED light resistor. The software used to create the designs on the sides of the cubes was Inkscape, a completely free, open-source platform that appears to be user-friendly yet still able to make complex designs. Once the template for the wooden cube was downloaded, he initially needed to consider some alterations to guarantee the fitting of the wood. In order for the laser to properly cut the wood, certain formatting and thickness adjustments had to be made. Using Inkscape, Brian and the other members of his group traced images taken from online, and, once finished, the PDF file was loaded onto the laser cutter. The laser etched the designs into the wood which created the downloaded images, while also making the actual cuts to create the box. The cutting process lasted just a few minutes, as subtractive manufacturing such as laser cutting can be considerably faster than additive manufacturing, like 3D printing. Brian’s finsihed creation can be seen below.

Carter’s weekly reflection focused on the soldering aspect of the project. While the initial instruction appeared to be very time consuming and required immense precision, concentration, and delicacy, soldering as a tool in the making and design process can be incredibly powerful and handy, as it offers certain advantages to a product that otherwise would not be available. Soldering allows for more accurate and uncluttered connections between various electronic parts, such as wires, resistors, and other components. An additional benefit of soldering is the ability to maintain the original shape of the soldered metals, considering that the solder has a much lower melting point than the adjoining metal. Since the fusing occurs at much lower temperatures (albeit still incredibly hot), the metals that are being connected do not warp in shape or size, nor do they melt. Lastly, soldering allows for the joining of multiple wires using a single focal point. This can allow electricity to be conducted, as all the wires have been bonded together. Below is a picture of Carter’s finished soldered Arduino circuit board and light dependent resistor.

Charlene’s post focused on the coding of the Arduino Uno circuit board, using Arduino’s open sourced software. Arduino’s simple platform allows for makers with only basic coding experience to still utilize the immense functionality of the technology. Her group was tasked with coding specific behaviors into their widget. In this case, the object that was being encoding was a photo resistor (light dependent resistor) with LEDs. By connecting the LED lights to the light resistor and being guided through some of the basics of the Arduino code, the LED lights extinguished in the presence of light and flashed during times where there was no light (when it was covered by a hand, for example). This first exercise with the Arduino technology was simple enough for us as first-time users to comprehend, yet was still an applicable and useful first attempt at the software, and definitely something that could potentially be incorporated into our end of the semester final projects. Personally, having the ability to view tangible, physical result of our efforts was something that felt gratifying. Charlene’s final product for this phase of the project is pictured below.

While each group has been focusing on a specific activity, we can universally agree that the experiences at the Fab Lab have been invaluable to our making journey. We are constantly attempting to apply what we are learning to not just our semester projects, but also outside of the classroom. I look forward to the rest of our time at the Fab Lab, as well as the rest of the semester!

Digital Making at the Makerlab- Spring2017

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