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Cambridge Hackspace Workshops

Description:

In February 2016 I moved to Boston and started checking out some local Meetups. I found a workshop on Intro to Soldering at the Cambridge Hackspace (CHS) and decided to check it out. Six months later I was helping teach the class and a few months later, I was teaching my own Introduction to Arduino workshop. If you're interested in attending, checkout our Meetup page linked below!

Links:

Tools Used:

Arduino, C++, Workshop/Hackspace

Media:

Arduino Kits

Intro to Soldering Workshop

Intro to Soldering Workshop

MIT D-Lab Development Class

Description:

In August 2016 I was invited to be a mentor for the D-Lab Development Class. I mentored 9 students from the development class in a semester-long research project focused on Colombia. After the course finished, over the winter term, I organized and led 4 of the students on a 3-week assessment trip to Colombia to teach engineering workshops, learn about the culture, and assist in projects with the sister organization, C-Innova.

Links:

Tools Used:

Arduino, C++, Soldering Iron, Spanish, Workshop/Hackspace

Media:

Launching Rockets

Successful Product of the Lamp Workshop

Teaching Intro to Arduino Workshop (In Spanish!)

A Woodworking Christmas

Description:

For Christmas this year, I decided to combine my desires to learn more about woodworking and make homemade gifts. The resulting gifts were a block puzzle, watercolor palette, picture frame, wooden coupon, and jewelry box.

Tools Used:

Adobe Lightroom, Adobe Photoshop, Camera, Fusion 360, Laser Cutter, Woodworking Tools, Workshop/Hackspace

Media:

Jewelry Box

Picture Frame in the making

Tree ornaments

Watercolor Palette in the making

Wooden Puzzle

Woodworking Coupon

Engineering Portfolio V3.0

Description:

This is the third version of my personal engineering portfolio. Version 2.0 was created with WordPress. While it's a great Content Management System(CMS), it was not the ideal solution. I learned Django to create a CMS that served my needs for a single page website. Furthermore, I learned Less to simplify writing CSS.

Tools Used:

Adobe Lightroom, Adobe Photoshop, Bootstrap, CSS, Django, HTML, JavaScript, Less, Python, jQuery

Media:

Homepage Screenshot

Assessment to Action

Description:

SHOPS Plus needed updates to the design of their Assessment to Action website. I worked with a designer to turn her design proposal into an updated website. As part of this project I began learning PHP and wrote a script to generate small parts of the website. Additionally, files across the website needed to be updated, so I wrote a python script to automate the process.

(Note: The website is not under my control anymore and might be changed at some point in the future.)

Links:

Tools Used:

Adobe Photoshop, Bootstrap, CSS, HTML, PHP, Python, WordPress

Media:

PHP Snippet

Python Script Running

Website Overview

Baby Gym

Description:

I wanted to get my niece-to-be a gift. However, I didn't like the idea of buying something, so I purchased some wood and got to building her a baby gym. I originally planned to build the entire thing out wood, but due to choking hazards, I opted to purchase already baby-proof toys.

Tools Used:

Woodworking Tools, Workshop/Hackspace

Media:

Fine detail view

Folded up for easy storage

Top down view

Dr. Lauren Becker

Description:

Dr. Lauren Becker needed a website for her practice. I assisted a designer to create a WordPress website.

(Note: The website is not under my control anymore and might be changed at some point in the future.)

Links:

Tools Used:

Adobe Photoshop, Bootstrap, CSS, HTML, PHP, WordPress

Media:

Homepage Screenshot

Time-lapse Camera

Description:

Photography has been a passion of mine but I never knew how a camera worked. This project was an exploration in turning a collection of electrical components into a camera with a user interface. To take the project one step further, I wrote a script in Python to stitch the images together.

I did a three part write up on my photography blog which you can check out below.

Links:

Tools Used:

Arduino, Camera, Python, Soldering Iron, Workshop/Hackspace

Media:

Breadboarding

Pan & Tilt Camera Rig

Description:

Why buy a camera pan and tilt tool when you can build one yourself with laser cut parts, some motors, and an Arduino?

This project began on a breadboard where I created a user interface to control panning, tilting, direction, and number of photos. Three servos total controlled panning, tilting, and taking photos. Once I knew what had to be housed, I created the case and arm to mount the camera in SolidWorks. These parts were then laser cut and glued together.

Links:

Tools Used:

3D Printer, Arduino, C++, Camera, Laser Cutter, SolidWorks, Workshop/Hackspace

Media:

All the electronics wired up

Assembling motors and wood pieces

Finished Project

Painless Prototyping Startup

Description:

The logical progression from breadboarding and soldering was to start designing circuit boards. An idea popped into my head one day of a board that could be helpful in the electronics that I prototype. As I was designing the board, it dawned on my that others might find the board useful too. I launched a Kickstarter campaign that was fully funded in less than 24 hours and was born.

Links:

Tools Used:

Adobe Lightroom, Adobe Photoshop, Arduino, Bootstrap, C++, CSS, Camera, Eagle PCB Design, Filmora, HTML, Soldering Iron, WordPress, Workshop/Hackspace

Media:

Late night working

Version 1.1 on the left and 1.0 on the right

MIT Hacking Medicine

Description:

At the MIT Grand Hack, I joined joined a team that focused on making a wearable device to help people with Type II Diabetes monitor their eating and snacking habits. My personal contribution was the Arduino prototype that could sense when a person is eating.

Links:

Tools Used:

3D Printer, Arduino, C++, Camera, Soldering Iron, SolidWorks, Workshop/Hackspace

Media:

Brains and battery for the wearable

Team shot (Italy, India, China, and US together!)

Wearable

Automated Film Scanner

Description:

As an extension of my interest in photography, I started shooting film. The process of getting the negatives was quite easy but I had no space for a darkroom to make full sized prints. The commercial option was to buy a film scanner which was quite expensive. I opted to build my own instead.

The setup consists of a holder for the film constructed of K'Nex, a stepper motor that pulls the film along the holder, a servo to take a picture with the camera, a user interface to enter size and quantity of photos, and an Arduino to control it all. The film was back-lit by my monitor.

More film (and digital) photos can be seen in my Flickr profile and Photography Portfolio.

Links:

Tools Used:

3D Printer, Adobe Lightroom, Arduino, C++, Camera, Workshop/Hackspace

Media:

Film ready to be scanned

Overview of all electronics

Sample Scanned Image

Bulk Spanish Vocab Translator

Description:

The process of looking up Spanish words in a translator is rather easy for one or two words but when reading books with 15 to 20 unknown words per page, it can get rather tedious. This program takes an input of either words typed into the console or imported from a txt file, and translates them all through SpanishDict. It implements various checks to see if a word is spelled correctly and offers alternatives if it is not found.

Once all words are looked up, the Spanish Word, English Word, and form of the word seen are appended to the list of words looked up in the past. If a word is already in the list, the new form of the word seen is added to the existing dictionary entry as well as +1 to the counter for the times the word has been seen.

The dictionary can be saved for later use or exported to Anki to be used as flash cards.

Links:

Tools Used:

Python, Spanish

Media:

Photography Portfolio

Description:

My Photography Portfolio needed a place to live on the internet so I designed and developed a WordPress website with a custom theme.

Links:

Tools Used:

Adobe Lightroom, Adobe Photoshop, Bootstrap, CSS, Camera, HTML, WordPress

Media:

Homepage Screenshot

MIT D-Lab IDDS Zero Waste

Description:

"IDIN empowers a diverse network of innovators to design, develop, and disseminate technologies to improve the lives of people living in poverty. Our work helps move promising technologies and approaches through an innovation pipeline to achieve sustainable social impact. "

Each year, IDIN hosts several summits throughout the world, known as IDDS. This year I was invited to attend IDDS for two weeks in Cali, Colombia with a focus on waste and waste pickers. The summit began with classes covering various aspects of the design process. Participants were then grouped up and worked to solve a problem related to the topic of waste. My group's focus was on 3D printing and soda bottle trash.

Our prototype, titled the Barbusora is a low cost 3D printing filament extruder aimed to increase the value of plastic for waste pickers. It transforms collected plastic into a higher value plastic. Collected plastic is sold by waste pickers at a low cost ($500 Colombian pesos per kg), and some plastic types that could be used in 3D printing aren’t collected because there is no current market. Plastic aimed for 3D printing is sold at a high price ($130,000 Colombian pesos per kg) and imported mainly from China. Barbusora transforms collected plastic into 3D printing filament that waste pickers could sell at a higher price, reducing the amount of plastic being imported and providing a new product for waste pickers to sell.

Links:

Tools Used:

Spanish, Workshop/Hackspace

Media:

Final Prototype

Testing Prototype

Visiting Recycle Center in Cali, Colombia

Engineering Portfolio V2.0

Description:

My Engineering Portfolio V1.0 was a great opportunity to learn about the fundamentals of web design but was completely lacking in a content management system. When I first started this project I knew nothing about WordPress. I began by watching a course on Lynda.com to familiarize myself with the fundamentals, then I got started on customizing settings, installing plugins, creating templates for posts and pages, designing a child theme, and finally adding content.

Tools Used:

Adobe Lightroom, Adobe Photoshop, Bootstrap, CSS, HTML, JavaScript, PHP, WordPress, jQuery

Media:

Homepage Screenshot

Engineering Portfolio V1.0

Description:

At some point in the middle of my last job hunt, one of my applications asked for a portfolio. Instead of following the boring route of throwing together some stuff in a PDF, I opted to learn web design & development to create my own site. This was the result.

Links:

Tools Used:

Adobe Lightroom, Adobe Photoshop, Bootstrap, CSS, HTML, JavaScript, jQuery

Media:

Homepage Screenshot with Old Version Warning

Solar Energy Storage System

Description:

One of the key issues facing solar is the ability to store energy. Once the sun goes down, solar farms stop producing energy. One proposed solution is phase change material which can act as a battery for solar energy. For this project, I led 5 teammates in the yearlong process of planning, design, construction and implementation. For my part, I focused on the system piping, CAD model and control system.

Tools Used:

3D Printer, Arduino, C++, SolidWorks, Workshop/Hackspace

Media:

3d CAD model

Control System wired up and installed in case

Temperature sensors and screen up and running

Peace Corps Panama

Description:

From June 2013 to July 2015, I served as an Environmental Health Specialist with the Peace Corps. If you're interested in lots and lots more photos, writing, and videos, check out my blog.

Some key highlights include:

  • Assisted in 5 water committee seminars, which were attended by a total of 67 people, and resulted in improved knowledge about water system construction and maintenance, water health, and the running of a successful water committee.
  • Selected to represent Peace Corps Panama at the 2014 International Engineers Without Borders conference in Panama City where he assisted in breakout sessions with roughly 30 participants to educate them on implementing more successful development projects.
  • Elected to the Volunteer Advisory Council as treasurer for a period of 1 year where he helped improve relations and communication between volunteers and the staff.
  • Worked with 3 Engineers Without Borders chapters on their respective projects to bring water to a rural community, build a pedestrian bridge, and construct a library.
  • Achieved an advanced low competency level in Spanish during his service and effectively used Spanish to communicate while working in his community, with Panamanian government and non-government agency counterparts, and in daily life.

Links:

Tools Used:

Masonry, Spanish, Workshop/Hackspace

Media:

Finished rainwater catchment system

Host family, real family, and I

Teaching a seminar on rainwater catchment

Laser System Housing

Description:

A client needed a safer and more accessible housing design for their laser system. Working with the 80/20 catalog, I redesigned the case with ease of access and safety in mind. Additionally, both end plates were updated to adapt to the new case.

Tools Used:

SolidWorks, Workshop/Hackspace

Media:

3d CAD Model

Physical Model

Kinematic Mirror Mount

Description:

The previous version of the kinematic mount was poorly designed and difficult to adjust and impossible to lock in place. This redesign simplified the adjustment process and incorporated a locking mechanism.

Tools Used:

SolidWorks, Workshop/Hackspace

Media:

Final Prototype

SolidWorks 3D Model Detailed View

SolidWorks 3D Model Overview

Engineers Without Borders Water System

Description:

The community of Kolunje, Kenya was in need of a water system and reached out to Engineers Without Borders for assistance and the Rutgers University Chapter accepted the proposal. During my year with the team, I helped prepare technical drawings of the system layout and finalized documents required to get approval to travel to Kenya to begin construction.

Links:

Tools Used:

SolidWorks

Media:

2D Overall Engineering Drawing

2D Well Part I Engineering Drawing

2D Well Part I Engineering Drawing

3D CAD Model

Travis Bumgarner

Hi! My name is Travis and I am passionate about engineering, international development, and learning new subjects. During the day, I work as a software engineer, creating and updating software tools for scientists. Additionally, I spend a lot of time working on my startup, Painless Prototyping. In my free time, I try to learn as much as possible, as noted by my slightly excessive list of skills below. If you’re interested in getting a coffee or to discuss a project, either yours or mine, feel free to use one of the links to get in touch!

Skills + Tools

Web Dev - Back End

  • Django / DRF
  • Flask
  • SQL
  • WordPress

Computer Programming

  • C++ (with Arduino)
  • Python

Web Dev - Front End

  • Bootstrap
  • CSS
  • HTML
  • JavaScript
  • React
  • jQuery

Electrical Engineering

  • Arduino
  • Breadboarding
  • Raspberry Pi
  • Soldering

Computer Skills

  • Adobe Lightroom
  • Adobe Photoshop
  • GitHub
  • MacOS
  • Ubuntu & Raspian
  • Windows

Mechanical Engineering

  • AutoCAD
  • SolidWorks

Miscellaneous Skills

  • Chinese
  • Photography
  • Spanish
  • Woodworking

Business

  • Advertising
  • Kickstarter
  • Online Stores

[ INSERT NEXT SKILL HERE, I'M ALWAYS READY TO LEARN]