Build a UAV for credit! Take AA 241X

Check out our official coverage: Stanford News article and video!

In an earlier post, I talked about taking AA 241X with Peter Blake – the two of us were the only GSB’ers in the entire class. We asked to be placed on the same team, only because we knew that we wanted to work together since we hadn’t ever been in the same study group. Well, we had a blast…

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Here, Peter is prepping our “issued” Bixler 2 test plain. All teams were given their own Bixler to learn how to fly and start the process of building our own autopilot and mission code. Although I do have some Arduino programming experience, I did not contribute to this part of the build. I focused on construction – since that was an area that I probably had the most experience.

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We also learned how to use the various tools at the Aero/Astro department. They had hot-wire foam cutters, laser cutters, spin tables, etc. This prototype was built mostly from foam using the hot wire cutter and hand-cut foam. We tried covering the foam with shrink film to increase rigidity, but ultimately we were not satisfied with the foam performance (note: this was low-density expanded poly styrene – like styrofoam cup material). The other teams did opt for foam construction, but they ended up using higher density blue foam for insulating houses.

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Our team’s definitive advantage was construction. After the first couple weeks of research, design and planning, we built a new plane about every 10 days. This was our first balsa-based design. It has an elliptical fuselage design and ended up being too heavy for our mission parameters. We had restrictions on which motor and how big of a battery we could carry, so we would need to slim down this design.

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Toward the end of the quarter, we were simultaneously building 2-3 airframes at any given time. We had experimented with weight reduction, stiffening the wings and different length / internal component configurations to affect center of gravity. We also perfected our construction technique to use 100% laser-cut parts and as little glue as possible (glue is surprisingly heavy).

While I was working on construction iteration (with a couple of my group-mates), Peter and Brandon were focused on learning how to fly the plane’s mission. A few flights and autopilot failures resulted in broken planes, but we realized early that creating an assembly line mindset would make it difficult for the other teams to keep pace. For us, a catastrophic crash would result in just a couple hours of downtime to configure a new airframe. For the other teams, a crash could ground them for a few days.

It might sound like this class was a lot of fun – it was. But the hours were grueling… It wasn’t that the coursework was so time consuming, but in order to deliver the winning performance, we put in a lot of hours beyond class time. While this was a 4 credit class, people taking any hands-on Engineering classes should expect 8-12 hours / week in addition to scheduled class time. Some weeks, we easily spend 25-30 hours building planes…

Stanford’s heritage is tied to engineering and practical skills – it was a great experience to be able to spend some time outside the GSB in these other classes. Make sure your time here is complete – get across the street!

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Winter Quarter – Another Club-22

What’s Club 22? Its members are the masochists in your cohort that subject themselves to 22 credits per quarter. After Autumn Quarter and 22 credits, I figured that 22 credits wasn’t too bad after all. It seemed manageable, albeit taxing – but, more important, when would I have the chance to take these classes again, right?

Winter Quarter was also my first opportunity to take across-the-street classes…

That’s when I found out that Stanford Engineering classes involve work – credit-for-credit – than do GSB classes…

Here’s my Club 22 Winter Quarter schedule:

MSx Core:

GSB Electives:

Across-the-Street Electives:

MSx CORE CURRICULUM: The core load in Winter was down to one class, which had both good and bad effects. The Sloan ’13 class explained to us that the cohort would start to scatter quickly in Winter Quarter, as students started taking elective classes apart from their cohort-mates. In the GSB electives, it would be quite common to have at least a few MSx’ers in each class, but even with a few MSx’ers these classes were dominated by MBAs and a small handful of students from “across-the-street” departments. While this was a great opportunity to meet a broader group of people, it definitely started to loosen the cohesion of the Sloanie cohort. We pretty much saw each other in large groups only in Marketing class and at social functions like the weekly TGIF events. People who lived on campus had a much easier time of keeping social groups and functions tight, but this was much harder while living off-campus (exacerbated by a Club-22 schedule).

In short, during Winter Quarter, it is really important to go out of your way to spend time with your MSx cohort-mates as much as you can.

MKTG 249 – MSx: Marketing: While there was certainly much to learn from this class, it wasn’t one of my favorite classes. Prof. Khan made a deliberate effort to speak to several students prior to the start of the quarter to get a really good understanding of what the student profile looked like, what the level of marketing experience might be and what people wanted to learn from this class. I applaud her desire to make the class useful for everyone, but I found that instead, the curriculum was a little disjointed and ambiguous – leaving many of us unclear as to the functional responsibilities of a marketing department within a company.

MKTG 249: MSx'ers absorbing Marketing

MKTG 249: MSx’ers absorbing Marketing

For example, in the first class, Prof. Khan explained all the things that marketing would typically be responsible for – including customer advocacy, competitive analysis, branding, business development (external partnerships), product management and innovation, corporate communications (both internal and external), sales (if it is a combined sales & marketing department), managing cost of sales / ROI of sales & marketing, strategic marketing, marketing communications, promotion management, etc. Then, she proceeded to tell us that because we are all experienced professionals and more likely to need marketing understanding only at an executive level, so we’re not going to deep dive into any of these – but rather, concentrate on how an executive would manage these functions and hire the right marketing team.

Ok, not what I personally wanted to learn, but that seemed like a reasonable plan of action.

In reality, we spent most of our time looking at a strategic marketing framework and working on a couple projects around Google AdWords. This did not meet my expectations. I think it would have worked out much better to stick to the originally stated plan and cover all the sub-roles within marketing – sure, we don’t need to become expert at any of those tasks, but it certainly would be helpful to know how to identify a good product management or marketing communications candidate when I see one.

So, for you newly minted Academic Chairs out there, be sure to keep an eye on this curriculum and help improve this class!

GSB Electives: Since Winter Quarter was our first chance to really customize our schedules, soak up electives and finally enjoy super-round selections (maybe), it was probably my favorite quarter. It was much more interesting to take on a schedule that I had created for myself – and I think I put in even more effort because of it. This was also the time to seek out those legendary professors and classes to ensure that I didn’t miss the important GSB-exclusive experiences.

ACCT 340: Alphanomics: If you have any interest in managing a public-equity investment portfolio (either professionally or for your own portfolio), you should definitely take this class. For those of you (like me before GSB) who don’t know what public-equities are, it is the class of securities that are publicly traded on one of many stock exchanges around the world (e.g. NASDAQ, NYSE, Euronext, JPX, LSE, etc.). Prof. Lee is one of the early pioneers and widely published academics in quantitative stock analysis – and he’s a fantastic instructor.

He’ll teach you how to tear apart financial statements and use that information to determine the quality of financial statements (e.g. likelihood that firms are truthfully reporting or manipulating their financial results), how to assess risk and diversify a portfolio, build stock screens and rank firms for inclusion into a portfolio and how to build a trading strategy to take advantage of what he calls “Informational Arbitrage” – and why this works in a supposedly “efficient market.”

This is hugely in contrast to the MSx core finance class, where Prof. Strebulaev teaches that it is highly unlikely that you will be able to beat the “market portfolio.” Make sure that you pay attention in ACCT 219: Financial Accounting and FINANCE 229: Finance if you want to perform well in this class – you will need those skills here.

A note for Mac people – this is one of those domains where some of the tools are only available for Windows… So prepare to spend time in the RAIL lab and/or make sure you’re loaded up with Parallels or VMWare + MS Excel for Windows (there are a few macros and plug-ins that only work with Excel for Windows).

MKTG 344 – Marketing Research: Prof. Sahni’s class was a fun dive into the world of quantitative marketing. His curriculum focused on using quantitative methods (yes, you will need to have paid attention in OIT 249 – MSx: Data & Decisions (Statistics) – so be forewarned!) to help make marketing decisions and evaluate the success of marketing efforts.

Although our project data collection methods were a little cheesy (we used Amazon’s Mechanical Turk crowdsource platform to run surveys), we certainly learned a lot about survey construction and sampling methods. We also learned about tools like conjoint analysis (we use some elements of conjoint analysis in our Hinted product) and cluster analysis – these are tools that you can use to quickly capture a large amount of reliable data from customers or prospects (or anyone else, outside the context of this class).

Prof. Sahni and our conjoint analysis Trail Mix ingredients

Prof. Sahni and our conjoint analysis Trail Mix ingredients

Like most GSB electives, this class was mostly filled with MBAs – Erik Wittreich and I partnered with Veerle Daenen and Charmaine Kenny (MBA2s) for a fun group. We even worked on a trail-mix product, which should have won the class competition, but alas, the scoring criteria said we came in dead last. I think that was largely my fault too!

OB 522 – Social Networks: Ok, I know what you’re thinking, but no – this is not a class that teaches you how to use Facebook and LinkedIn…

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Too bad LinkedIn is killing inMaps…

We didn’t use inMaps for this class, but rather used a tool that Prof. Hasan built for his consulting practice. But, the idea was similar – to understand an organization’s bottlenecks, information brokers and key influencers, it’s really important to know the social network within the organization – this could help uncover why some departments (or managers) work well and others fail miserably.

This class was certainly a quant class, but wasn’t too heavy on actual number crunching. Much like in our core Statistics class, Prof. Hasan was fantastic in class – very engaging, always very well prepared and entertaining to boot.

This was also my first GSB “short class” – this class ran for a half-quarter. Since the amount of material was quite manageable, it was a nice way to get a dose without beating a horse to death. It was also a great way to fill a couple credit hole in my Club-22 membership!

STRAMGT 321/322 – Create A New Venture: The title of class is exactly what you will do. Because it was so significant in the creation of Hinted, I will devote a separate post just to the subject of this class. But here are a few key points for those of you considering taking it (or any of the other team-based entrepreneurship classes like STRAMGT 356/366: Startup Garage, ENGR 245: Lean LaunchPad and others too):

  • Team-based class: You must pre-form a team before registering for the class
  • Instructor permission required: After forming the team, you must go talk to Prof. Rohan and get approval to register
  • Business idea: You must have an idea to pursue – it’s ok to change it later if you discover your first idea sucks, but you must present something in your initial group meeting
  • Time commitment: If you’re doing this class properly and taking it seriously, it will take a lot of time!

Across-the-Street Electives: What isn’t clear in the public MSx program website is the ability for MSx students to take elective courses outside the GSB. In fact, students can take classes in any of the other departments / schools on campus – but some courses have specific restrictions / pre-requisites / instructor approvals that need to be met. But don’t take these at face value either – speak to the faculty if you find yourself in doubt. Some of our classmates were able to take Ph.D. level courses and I was able to take a couple Mechanical Engineering classes with highly competitive registration processes. For some of you (like me), you might find that one of your across-the-street electives turns out to be your favorite class while at Stanford.

ME 103D – Engineering Drawing & Design (CAD): ME 103D starts as the most basic of basic CAD classes imaginable, then quickly accelerates into a class that is hard to keep up – then it is over. According to Explore Courses, this is a full quarter class – but our section was over in approximately 4-5 weeks. It is a quick 1-credit class that meets once per week and whizzes through the material.

You will learn SolidWorks (at the most elementary level) and become reasonably proficient with 2D and 2.5D drawing (that’s taking 2D shapes and extruding them along linear or curved paths and combining with other 2D/2.5D features). It is also a co-requisite for either ME 203 or ME 318. This class could be useful for anyone who wants to build basic proficiency with a very powerful CAD tool. The workload for this class is very manageable, but builds on itself every week – so don’t fall behind!

ME 110 – Design Sketching: If you always wanted to learn how to draw, but you are right-brain handicapped (like me), this class is a great way to gain a new skill. Most people think that you need to be an inherently good artist to be able to draw – but this class teaches engineers to use their analytical skills, mathematic reasoning (don’t worry, not as quant heavy as it sounds) and a little simple geometry to turn ideas into art. Sure, you probably won’t come out of this as the next Picasso, but you’ll be able to sketch quick product ideas in both 2D and 3D quite easily. Learn perspective, elevations and shading/rendering.

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Sample product perspective drawing

30 Second Tie Fighter - using only simple geometric shapes

30 Second Tie Fighter – using only simple geometric shapes

This class is NOT DIFFICULT – but it can be very time consuming if you take it seriously. It is offered pass/fail (and it is a non-GSB elective), so there is very little risk in adding this class to your schedule. I can almost guarantee that this class will improve your whiteboard skills too – so if you can’t get into the d.school’s Whiteboard Warrior class, this class might be a good alternative.

ME 318 – Computer-Aided Product Creation (CAM): Based on the amount of time I spent on this class, you would have to think it was my favorite class at Stanford. It’s not a typical class for a GSB’er to take – getting in is very competitive and there are some requisite skills (not too rigorous though). Because of the degree of specialization in this class and how much I enjoyed it, I’ll devote a separate post for this.

But quick important points:

  • Workload: Like most hands-on Engineering classes, the workload is disproportionately high compared to GSB classes – while it was a 4-unit class, I easily spent 12-16 hours per week in the PRL alone, not counting time spent in class or at home in SolidWorks / HSMWorks
  • Project-based class: You will need to come up with your own project in class – you don’t need to have an idea before you register, but it doesn’t hurt to have 5-10 areas that you are interested in exploring
  • Cut Early & Cut Often: Because this is a hands-on class, you won’t become proficient unless you spend time on the machines as early as possible and as much time as you can spare – this is not a leisurely class!
  • Go talk to Prof. Milroy early if you want to take this class!! Make sure he knows who you are and why you want to take the class well in advance of registration
  • Special note on ME 203: If you don’t have the requisite skilled to take ME 318, but you want to get your hands dirty in the PRL, consider taking ME 203 – throughout the quarter, you’ll cycle through all the PRL sections (e.g. wood working, metal & plastic machining, welding, metal casting, etc.) and gain basic proficiency in all those skills – but this class is extraordinarily difficult to get in, so go talk to Prof. Beech early!

Please feel free to post any questions!

-E

 

Re-re-starting blog…

I had no appreciation for how difficult it would be to maintain a regular blog. Clearly this is in itself a full-time job!

So many of the current cohort (MSx 2015) had said it was useful to read what I had wrote, so I’m going to try and complete my original vision of documenting my year at GSB.

But, before I do that, here’s the latest:

June 14-15 was graduation weekend for Stanford Class of 2014. As far as I know, everyone in our Sloan / MSx class graduated. Since then, many of our international classmates have returned to their home countries, with only a few staying here – several have found jobs all over the US and have started their new adventures.

There are at least 4 startups that I am aware of from our class. These startups cover the following industries:

  • Luxury Food
  • Medical Devices
  • Education Technology
  • Social Feedback (the team I am working on)

I’m working on Hinted.com with 2 classmates. We are creating a platform for users to give and receive feedback from their professional and personal social networks. Working through the Stanford Venture Studio, we were able to secure office space and are now working to complete our first public version.

I’m also getting ready to launch my first Kickstarter campaign. During Winter quarter, I spent a huge amount of time in the Mechanical Engineering Product Realization Lab for ME 318 – Computer Aided Manufacturing. While this class was a huge distraction from GSB studies, it was an once-in-a-lifetime opportunity to study with some of the brightest Engineering students. As part of that class, I designed and developed a new type of wallet made from a single piece of milled aluminum. I’m calling it the Decadent Minimalist.

Ironically, Kickstarter just posted this article: Why are there so many wallets on Kickstarter?

Stanford d.school and PRL methods encouraged me to look at this problem from a completely different angle – so I really think I have the first revolutionary wallet design to hit Kickstarter. Most of the front-pocket wallets projects involve two metal plates held together with rubber bands – that was exactly what I was trying to avoid making.

Drop me a line if you find this idea intriguing – or, better yet, support my Kickstarter campaign when it launches. I’ll post a link here to keep you updated.

No longer a student, but always a Sloanie… 

-E

PRL Gets Nods

Ok, here’s a great article talking about Mechanical Engineering’s PRL – Product Realization Lab. It is a full blown machine shop, wood shop, foundry, welding shop, fab lab and design loft. Very cool place. Students can buy a full-academic-year pass for $100.

http://www.thedishdaily.com/news/2013/10/28/build- prototype-stanford-product-realization-lab

I will also be taking the following ME classes next quarter:

ME 203 – Design & Manfacturing 

ME 103 – Engineering Drawing and Design 

ME 318 – Computer-Aided Product Creation

ME 110 – Design Sketching

These classes certainly are not the typical coursework for a GSB student, but they are right up my alley and core to my startup. We’re currently allowed 22 credit hours per quarter (we are charged by the quarter, not by the credit hour) – and, for now, I intend to take as many classes as I possibly can.