Manufacturing guy-at-large.

Satya Nadella

Added on by Spencer Wright.

Microsoft CEO Satya Nadella, quoted in the NYTimes about an interview he had with Steve Ballmer.

I went on to ask him, “How do I compare to the people who had my role before me?” And Steve said: “Who cares? The context is so different. The only thing that matters to me is what you do with the cards you’ve been dealt now. I want you to stay focused on that, versus trying to do this comparative benchmark.”

The past few days

Added on by Spencer Wright.

Have been a little hectic. 

In addition to trying to make some long overdue progress on my DMLS work, The Public Radio is kind of heating up right now. We received a new batch of PCBs, and got a few of them built up quickly.

Verifying fine-pitch connections on the FM IC.

Zach adjusting station tune on the first assembled board.

To our astonishment, the first board we built worked immediately. This was actually kind of weird - we were expecting at least a bridge or two would need to be fixed, and there was always the chance that we had made a design error. Having our first board turn right on, and then quickly tune to WBGO 88.3, was a real kick.

Things won't always go so well, though, and so the following day we spent a bit of time straightening the workshop and setting up a bit of new tooling. The Public Radio HQ is now the home to a brand-old 1984 Tektronix 2465, a 4-channel 300MHz analog scope. We also picked up an inexpensive hot air rework station, and I dumped some bike parts out of one of my small parts cabinets and dragged it in to the city as well.

The. Shop.

We don't have stencils for these boards (aligning circular stencils requires a bit more foresight than we could muster when we made the purchase) so we're laying out solder paste by hand with a syringe and toothpicks. Then we laid out a big piece of card stock and placed SMT components out part by part and set out with tweezers and loupes to place them on boards.

Zach placing parts.

Our boards have two fine-pitch parts on them (the FM IC and the amplifier), and then they're almost all 0603 packages. These are manageable once you get going, but initially they're just fucking small. Anything smaller and we'd have a really hard time hand assembling these boards.

Soldered & partially assembled (but not reflowed) PCBs.

Our fine pitch parts. 

Partially assembled boards. Our knobs showed up too; they're looking really pretty :)

Fully assembled boards, ready to be tuned and tested. There are a couple of 0603 parts in the far right corner.

There are a few small modifications that we'll make before we go into production. Our thru hole trimpot's package needs to be changed, and we need to do a little tweaking on the gain setting resistors going into the amplifier, and I want to spend a little while getting graphics on the silkscreen layers. But these are minor changes; overall, the boards are 95% there.

On Monday we'll be receiving a batch of lasercut stainless steel lids, and we'll finally see how our whole assembly fits together IRL.

Availability Heuristic

Added on by Spencer Wright.

Also (again) from Thinking, Fast and Slow.

A major advance in the understanding of the availability heuristic occurred in the early 1990s, when a group of German psychologists led by Norbert Schwarz raised an intriguing question: How will people's impressions of the frequency of a category be affected by a requirement to list a specified number of instances? Imagine yourself a subject in that experiment:

First, list six instances in which you behaved assertively.

Next, evaluate how assertive you are.

Imagine that you had been asked for twelve instances of assertive behavior (a number most people find difficult). Would your view of your own assertiveness be different?...

The contest yielded a clear-cut winner: people who had just listed twelve instances rated themselves as less assertive than people who had listed only six. Furthermore, participants who had been asked to list twelve cases in which they had not behaved assertively ended up thinking of themselves as quite assertive! If you cannot easily come up with instances of meek behavior, you are likely to conclude that you are not meek at all. Self-ratings were dominated by the ease with which examples came to mind...

Psychologists enjoy experiments that yield paradoxical results, and they have applied Schwarz's discover with gusto. For example, people:

  • believe that they use their bicycles less often after recalling many rather than few instances
  • are less confident in a choice when they are asked to produce more arguments to support it
  • are less confident that an event was avoidable after listing more ways it could have been avoided
  • are less impressed by a car after listing many of its advantages

Editor's note: PEOPLE ARE SO WEIRD!!!!!

Kahneman

Added on by Spencer Wright.

From Thinking, Fast and Slow. Emphasis mine.

A very generous estimate of the correlation between the success of the firm and the quality of its CEO might be as high as .30, indicating 30% overlap. To appreciate the significance of this number, consider the following question:

Suppose you consider many pairs of firms. The two firms in each pair are generally similar, but the CEO of one of them is better than the other. How often will you find that the firm with the stronger CEO is the more successful of the two?

In a well-ordered and predictable world, the correlation would be perfect (1) and the stronger CEO would be found to lead the more successful firm in 100% of the pairs. If the relative success of similar firms was determined entirely by factors that the CEO does not control (call them luck, if you wish), you would find the more successful firm led by the weaker CEO 50% of the time. A correlation of .30 implies that you would find the stronger CEO leading the stronger firm in about 60% of the pairs - an improvement of a mere 10 percentage points over random guessing, hardly grist for the hero worship of CEOs we so often witness. 

If you expected this value to be higher - and most of us do - then you should take that as an indication that you are prone to overestimate the predictability of the world you live in. Make no mistake: improving the odds of success from 1:1 to 3:2 is a very significant advantage, both at the racetrack and in business. From a perspective of most business writers, however, a CEO who has so little control over performance would not be particularly impressive even if her firm did well. It is difficult to imagine people lining up at airport bookstores to buy a book that enthusiastically describes the practices of business leaders who, on average, do somewhat better than chance. 

Daryl Davis

Added on by Spencer Wright.

Daryl Davis, talking with Nick Van Der Kolk about his work combating racism by befriending KKK members. Emphasis mine.

Q: What about well-meaning white liberals?

A: There are a lot of those... and there are a lot of well-meaning black liberals. But you know what? Again - when all they do is sit around and preach to the choir, it does absolutely no good. If you're not a racist, it doesn't do any good for me to meet with you and sit around and talk about how bad racism is. 

If you don't listen to Love + Radio... ugh.

Random thoughts on Net Neutrality

Added on by Spencer Wright.

This was written in a draft email that I eventually didn't send. It was in response to a discussion about this article.

A few notes: I'm bullshitting like 65% of this, and look forward to being called out where I haven't covered my tracks. Also, I know next to nothing about how the internet and/or public utilities are regulated now.

I totally agree that the effects of the (probable?) demise of net neutrality are *really* scary. I definitely don't want anyone controlling my access to information. 

However: I worry that treating the internet like water (or heath care, or clean air, etc etc) will lead to the equivalent of golf courses in Las Vegas, which are built & maintained at the expense of basically everyone who lives in the Colorado River Basin - 12 million people and a quarter million square miles of land.

In other words - until we figure out some crazy new way of transmitting data, global bandwidth (and global bandwidth infrastructure development) is still a finite resource. And I worry that while no-holds-barred net neutrality is great for all of us (privileged, educated, live in metropolitan areas, etc), it's at the cost of... well, those same people in the Southwest.

It's possible that that's a tradeoff that's ultimately good for society (which would be fucking crazy - this is *not* a claim that I endorse), but either way that conversation needs to take place independent of any gripes I have about how long it takes me to bittorrent new episodes of True Detective. And I'm just not sure that I'd defend my right to free, ultra-fast access to internet porn when some kid in North Dakota is just trying to get off of dialup. 

I don't at all mean this to be a defense of the telecom industry, and I'm not particularly excited about subsidizing high speed internet all across rural areas either. But I recognize that the world would probably be a better place if a 20 minute shower cost me significantly more than a 5 minute shower. And if society doesn't have any mechanism to make me feel that effect, then we're probably all worse off as a result.


Editor's note: Sometimes the best email is the one you drafted, deleted, and posted on your blog instead ;) Hat tip to everyone at Gin Lane for the inspiration.

Iterating

Added on by Spencer Wright.

Rebuilt most of this A7 thumbgrip model today. 

Incidentally, Shapeways is complaining about the wall thicknesses on the hotshoe insert and a small area on the top of the cutout. I suspect this won't be much of an issue, but it could be.

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Old

Added on by Spencer Wright.

This is maybe the second or third 3D model I ever created. I was attaching a glass handrail to an existing deck, and needed a way of documenting the irregularities of the support members. My steel guy didn't respond all that well to my screenshots, but it came together quite nicely. 

Stewart Butterfield

Added on by Spencer Wright.

From "We Don't Sell Saddles Here," the title given to a memo sent to the team of Slack by the CEO of Tiny Speck, Stewart Butterfield.

The best — maybe the only? — real, direct measure of “innovation” is change in human behaviour. In fact, it is useful to take this way of thinking as definitional: innovation is the sum of change across the whole system, not a thing which causes a change in how people behave. No small innovation ever caused a large shift in how people spend their time and no large one has ever failed to do so.

and:

...all products are asking things of their customers: to do things in a certain way, to think of themselves in a certain way — and usually that means changing what one does or how one does it; it often means changing how one thinks of oneself. We are asking a lot from our customers...

To get people to say yes to a request that large, we need to (1) offer them a reward big enough to justify their effort and (2) do an exceptional, near-perfect job of execution...

The reason for saying we need to do ‘an exceptional, near-perfect job of execution’ is this: When you want something really bad, you will put up with a lot of flaws. But if you do not yet know you want something, your tolerance will be much lower. That’s why it is especially important for us to build a beautiful, elegant and considerate piece of software. Every bit of grace, refinement, and thoughtfulness on our part will pull people along. Every petty irritation will stop them and give the impression that it is not worth it.

Search Terms

Added on by Spencer Wright.

This is one of my favorite things about my website in the past month: someone dropped here by googling "hat how did little naked green men get on mars". Wow. 

Screen Shot 2014-02-20 at 3.07.52 PM.png

Incidentally, this is the page that they landed on - one of my favorite quotes, by Tom Wolfe, about the power of *not* fitting in.

Hugh Fiennes

Added on by Spencer Wright.

Electric Imp CEO Hugo Fiennes, paraphrased:

Root cause every. Single. Problem. 

When you ship 200 units and you get two back, it's just two units. But when you ship 200,000, that's 2000 back, and when you ship 200 million... you do the math.

Failures scale. You *need* to understand them.

Preproduction

Added on by Spencer Wright.

The Public Radio is getting close.

Yesterday I ordered parts for a 50-piece beta run. Our PCBs should ship in the next few days, and we've got speakers, potentiometers, and all our electronic components on the way too. I should pull the trigger on laser-cut stainless steel lids today, and will do knobs and antennas soon as well. The one thing that isn't fully secured is the antenna. We're planning on doing two different antennas - one telescopic, which will be made in Shenzhen to our specifications - and one solid, which will be Swiss turned. I should probably just pull the trigger on the telescopic version, but it requires a large order size and I've never dealt with this supplier before. The solid one we'll probably make by hand for this beta run, and will then order a larger quantity after it's fully tested.

The cost of all of this won't make or break anyone, but it's nothing to scoff at either. This beta run will cost us something on the order of $2k, and there will likely be a few snags along the way that'll require additional time, effort and money. 

This is a fun time. I really get a kick out of dealing with suppliers, and I (clearly) really enjoy learning about new manufacturing processes. And the rush of committing $500 to a run of potentiometers that you're almost certain will work is undeniable. 

The best - and the most potentially frustrating, too - part comes in the next week or so. I've planned our procurement fairly well, and most of our mission critical parts will be arriving within a few days of each other. But I'm sure I'm forgetting something, and even if I hadn't there are always times when you *really* want to start assembling parts but you're waiting on one little screw. 

Anyway. Fun stuff. Updates soon.

"A traditionally cast frame."

Added on by Spencer Wright.

Who knew: Tell people you're designing 3D printed bike parts, and *everyone* will send you some variation on this article. Which is great - it's a totally awesome project, and I think Empire and Renishaw are working on absolutely the right thing. 

But I have a little nit to pick, and it's with the specific wording of the following paragraph (ephasis is mine): 

By using additive manufacturing the MX6 saw a marked decrease in weight. In fact, while the original bike frame weighed 2.1 kg, its 3D printed cousin was slimmed down to 1.4kg - a 33% reduction. What’s more, because Empire’s frame was 3D printed analysis showed it to be denser and stronger than a traditionally cast frame.

Here's the thing: frames aren't traditionally cast. Empire Cycles makes awesome stuff - totally crazytown bikes - but there's very little that's traditional about them. In fact, they're almost specifically atraditional - they use alternative methods of manufacturing partly as an exercise in design and manufacturing prowess. 

Okay. Rant over.

I should be clear: I think this bike is awesome. I especially like the photo of the build platform, which must have been a pain to engineer - even after they'd engineered the assembled product. I think Renishaw and Empire are totally onto something here. I'm just being a punk about the details :/

The Viral Self

Added on by Spencer Wright.

Rob Horning, writing in The New Inquiry about virality. Emphasis mine:

Virality, unlike celebrity, isn’t about exclusivity or personal talent; it’s about moving information continually. Wanting to go viral is not the same as wanting to become famous. Whereas a famous person has become a someone, a viral self is always in process of becoming, always proving itself. But it needs only to be circulating; it doesn’t need to climb.

And later, on a different note:

In a consumer society, we aspire to be as popular as the products we are expected to crave.

That last part is brilliant. 

Exactly the right tool

Added on by Spencer Wright.

Ian Frazier, writing about his experience developing a tool to remove plastic bags from trees: 

From that point, in a small but real way, my life changed. Having the exact right tool for a particular job is always satisfying, but when the tool (and, indeed, the job) never existed before, the satisfaction is multiplied. Plus, what we were doing, in addition to being fun, actually was benecial to society. In an over-full urban environment, we had found our niche, one we had all to ourselves. Nobody else in New York City, or in the world, was taking plastic bags out of trees. 

And later:

Now I understood, a bit, how people felt who had worked on the construction of some major public landmark like the Empire State Building.

The fun part about developing a useful tool is that it doesn't really matter what it's used for. The fact that it is used, and that it was never used before, is plenty.