Category Archives: Science

New Year, New Spool

While 3D printing has the potential to decentralize product design and manufacturing, nothing is without it’s drawbacks. One of the biggest for 3D printing is the inherent waste of filament packaging. Filament typically comes vacuum-sealed on a plastic spool with a tiny silica gel packet. The plastic film and silica gel are there to prevent water uptake which can have a negative impact on filament performance, and the spool is there to provide the filament with structure and an easy way to keep the long strand of plastic from tangling.

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My 3D printer with one of its new Master Spools mounted on top

The problem comes when you reach the end of the spool. What are you supposed to do with an empty spool? People on Thingiverse and the other 3D printer file repositories have come up with an impressive number of solutions to reusing these empty spools, but at some point, enough is enough. Luckily, makers are an inventive bunch, and RichRap came up with a solution called the Master Spool.

By making the spool a reusable part of the 3D printing process, filament is cheaper to ship with a reduced weight and carbon footprint. Since it’s an open standard, any filament manufacturer can jump onboard and offer their filament as Maker Spool refills. Master Spool is still new enough that only a few manufacturers are supporting it so far, but the speed of adoptions makes me think this will become the new normal for 3D printer filaments.

I ordered my Master Spools from Filastruder, and so far, I’m really impressed by the quality of the filament and how simple it was to put the Master Spool together. Two bolts and cutting three zip ties is all it takes to free yourself from an unending pile of empty filament spools.

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The empty Master Spool

This system isn’t entirely without waste, but it’s a big improvement over what came before. The plastic film can probably be recycled with other plastic bags in your area (usually at grocery stores), but I’m not sure what to do with the zip ties other than throw them in the trash. I keep the silica gel and put it in with my filament to try keeping it dry, but if I were a manufacturer, I’d spend the little bit extra and spring for the reusable silica gel packets with color indicator to reduce waste even more.

I think this is still a win for making 3D printing more sustainable. What do you think? Let us know in the comments!

Maintaining the Means of Production

As I reflect on 2019, I’m thinking of how everyone likes to talk about seizing the means of production being the path to freedom, but nobody ever really talks about maintaining it.

Various tools laid out on a piece of wood

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For me, a solarpunk future is one where we can locally produce most of the things we need. Ideally, this would be from predominantly local materials, but some things would undoubtedly need to trade from one region to another. I envision a future with a much lighter international trade footprint than we have now, restricted to mostly raw materials exchange for digital manufacturing and handicrafts.

One of the things you quickly realize as you move away from the dominant throwaway culture is that maintaining the items you have takes work. I don’t know if it’s always been this way, but people who work in maintenance are typically not well thought of in Western society. The plumbers, cleaning staff, and garbage haulers are somehow lesser in our culture’s eyes than a lawyer or engineer, resulting in depressed wages for many in these professions. This is pretty messed up since maintenance staff are the ones filling the most critical functions of our society. There’s an emphasis on the new and shiny, that is also exemplified by the poor state of infrastructure in the US while we continue to build new roads and highways.

Douglas Adams included an aside in The Hitchhiker’s Guide to the Galaxy about how one civilization was destroyed when it decided it no longer needed it’s telephone sanitation workers. While it’s a bit of an absurd example, just think about who you’d rather have still working during some sort of crisis – the trash collector or a lawyer?

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There are so many jobs in the current economy that only exist because of capitalism’s insistence that everyone needs to work for a living even when there are plenty of resources for everyone to have the basics. We’ve designed a hedonic treadmill where we make up unnecessary jobs so people can buy things they don’t need and corporations can extract profits from our communities. I know I’ve personally had a lot of jobs that weren’t adding value to the world, and I would’ve dropped them in a second if I hadn’t needed to make rent. That said, I also definitely have a bunch of things that I’ve bought that seemed like a good idea at the time but are now just clutter in the apartment. It’s easy to say that better spending habits would make it easier to make ends meet, but making that a reality when you’re inundated with advertising every day makes it easier said than done.

I hope a solarpunk future will have a lot less waste and a lot more genuine activity. Maybe a popular activity for lunarpunks would be to clean solar arrays in the night so they’ll be operating at maximum efficiency in the morning, or tidalpunks working on corrosion mitigation in coastal communities would be highly regarded members of the town. In the past year, I’ve repaired a couple cellphones, numerous bikes, performed various software and hardware upgrades on computers, and have been nursing my 3D printer back to health after it caught fire in March. I also helped out with two Repair Cafés here in town, repairing all sorts of different things. I haven’t been disparaged for being a fixer, and most people seem surprised or impressed when a gadget or garment can be brought back from the brink with a simple repair. Repairing objects can bring communities together, and I’d really love if we could extend that wonder and respect to all the people that keep society humming. If you are one of these unsung heroes, you have my thanks and respect.

Do you have any ideas on how to generate more respect and appreciation for those who maintain our society? Please let us know below!


Disclaimer: Affiliate links to books may result in a small kickback to me to help maintain the website. I only post links to books I think are relevant and worth your time. Feel free to check them out at your local library instead!

Glimpses of the future

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I didn’t get to ride on the Acela, but it was there when we got into the station.

On a recent trip up to D.C., my wife and I decided to leave the car at home. During our time here in Virginia, we’ve been to D.C. dozens of times for work or play, but we’ve always driven from our home to Alexandria or the District itself. Once there we would take the Metro or walk, but driving in NoVa and DC isn’t something I’d describe as fun. Now that we’re in an Amtrak town, however, it seemed like the perfect time to try traveling together without the car.

Walking a couple blocks to the bus station in Charlottesville, we were whisked away toward the Amtrak station. Minutes later, we got off the bus and walked over to the train station which included lugging our suitcase down a rather large staircase. This seems like one of the many places where Charlottesville’s non-motorized infrastructure could be improved, particularly for those with disabilities. I believe there is a way to get there without taking the staircase, but it requires going a much longer way from the bus stop.

As you may recall, I took my first Amtrak trip this spring, so I was surprised by the massive number of people at the station this go round. My wife suggested it was because of the holidays, which made sense with it being the Monday after Thanksgiving. In any case, the hundred or more people waiting on the train was a great difference from the twenty or so this spring.

Riding the train from Charlottesville to D.C. was uneventful, with only a short delay by Alexandria to wait on another Amtrak unloading their passengers at the station. I was able to doze while my wife worked on her laptop. The Northeast Regional seems to have slightly smaller seats than the Cardinal but is still vastly more comfortable than a plane ride.

After we got off the train at Union Station, we were able to hop the Red Line Metro to our hotel. After settling in, I walked down the street to get some food, and ran across oodles of bike and scooter sharing vehicles. In Charlottesville we have Lime and VeoRide scooters, but D.C. is a much bigger town, so while it’s no wonder they have more options, it was still staggering. I took a screenshot of my Transit app to show all the little dots by the Zoo Metro stop, but it doesn’t even show some of the options like the Revel moped rental.

A map is shown of the area around the Woodley Park/Zoo Metro stop in DC. There are a large number of dots indicating a high density of scooter, bike, and car shares available in the neighborhood.

Bike, scooter, and car shares available near Woodley Park

Having grown up in a relatively rural area of Missouri, I’m still amazed at all the different alternative modes of transit available. There, your transportation options were car, truck, or subsidized shuttle bus for certain subsets of the population. I’m really looking forward to a solarpunk future where it’s even easier to get around without a car. The group, Virginians for High Speed Rail, is currently working toward building out the rail network here in Virginia, and I know there are others calling for true investment in cross country high speed rail here in the United States. Since high-speed rail is less environmentally taxing than air travel, and generally faster for trips less than 430 miles, I think it’s a solid infrastructure investment the country should be seriously examining.

A map of VA showing current and future regional/long distance Amtrak routes. I believe this is aspirational, not planned.

Virginians For High-Speed Rail Map

Until then, I’ll have to be content with short haul rail service that is comparable to car travel times along the Eastern Seaboard and only do long distance rail when I can afford the time. That said, having access to D.C., New York City, and Boston without having to pay for parking in any of those cities or deal with the headaches of driving will give me a glimmer of the future we want.

Have you had any eye-opening experiences on public or shared transit? What changes would you make to build a better transportation network in your area? Let us know in the comments!

Bikes for a better tomorrow

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If you’ve been reading this blog for long, you’ll know I have a special place in my heart for the bicycle. I wasn’t really into biking as a kid since I grew up on a hilly farm without any safe paved areas nearby, but in college my roommate got me hooked when I joined him and a couple friends on a bike tour of the Katy Trail in Missouri.

I don’t tour anymore, but I do still use my bicycle for transportation, and it’s one of the reasons I moved close to downtown even though it required a bit of downsizing. Being able to run errands on foot or bike is a big plus for me, although I’ll admit that still having a car means I don’t bike or walk as much as I’d like.

For me, a solarpunk future is one where people have what they need a short walk or bike ride away. Biking, walking, and other forms of active transportation are a surefire way to reduce road congestion, clean the air, and reduce carbon emissions in our cities. There will likely be a place for the private automobile in rural areas for the foreseeable future, but the American Dream of suburbia is hopefully coming to a close. Don’t get me wrong, automobiles are a really impressive piece of technology, but as Peter Walker says in How Cycling Can Save the World, “they’re used far too often and frequently for the wrong sort of trips.”

This spring, I joined the city’s Bicycle and Pedestrian Advisory Committee to see what could be done to improve “alternative” modes of transport in the city. This lets me use all the years of reading transportation and urban planning blogs in a place where it might actually have an effect. While some cities like NYC push for lower speed limits and more protected bike lanes, most cities in the United States are still deep in the throes of car culture, a modern day death cult. The first step is to remove parking minimums from zoning codes. Donald Shoup estimates free parking amounts to a $500 billion subsidy for car owners, or 50 cents of public money for every dollar spent by the individual car owner. While some local business owners say that removing parking will kill their business, in most cases, better bicycling and pedestrian facilities actually are better for local businesses. If the parking doesn’t go in to begin with, then you don’t have to worry about the inevitable battle to remove it later.

photo of smiling woman in white dress and brown boots posing in multicolored glass house

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Solarpunk is about building a truly equitable and sustainable future. Much of the current environmental conversation is about what you can’t do to make a sustainable future – you can’t drive a personal vehicle, you can’t take long showers, etc. For me, solarpunk paints a picture of what we gain when we do the right thing. Being more connected to your community and taking time to enjoy the little nooks and crannies that make our cities so interesting may sound quaint, but it can bring real happiness. Being trapped in a metal box breathing the noxious fumes while at a standstill does not spark joy.

In addition, the design choices that making cycling and walking better also improve accessibility for disabled individuals when coupled with ADA guidelines. A well designed sidewalk is pleasant to walk down but is also a lot better for someone in a wheelchair to navigate than the side of the road with a gravel or grass shoulder. There’s no shortage of concern trolls who crop up when people start suggesting that the current dominance of cars on the streets isn’t the natural order of things. There are people with some disabilities for whom personal automobiles are a great blessing. Many disabled individuals do cycle or catch a ride on a bike, and organizations like Wheels for Wellbeing or Cycling Without Age help cycling reach groups that are often disenfranchised by current transportation options. Moving people out of their cars and onto bikes can only help those who are dependent on vehicles for mobility.

At first, I assumed that even if we eliminated the need for private automobiles in city centers, we’d surely still need delivery trucks for goods. Surely we need to buy things, and all those things must be moved by a big truck! With the realization that many of the fatal vehicle/cyclist crashes in the last year have involved supposedly-professional drivers, I’m a lot less convinced. While some people think drones will be the delivery service of the future, I’m betting on the e-cargo bike. There’s still the potential for crashes, yes, but when the cargo bike is 10x lighter than a box truck and going at a lower speed, physics dictates you’ll have a lot fewer injuries and deaths from a cargo bike wreck. As anyone who bikes knows, UPS and FedEx are already used to being in the bike lane, so it will be a small adjustment for their drivers anyway. There’s also the possibility that there will be less consumption in a solarpunk future which would reduce the overall amount of deliveries necessary.

FedEx in the Bike Lane

FedEx truck parked in bike lane in Philadelphia by Phila. Bikes via a CC BY-SA 2.0

So, in the end, how do we get more people on bikes and reduce the number of single occupancy vehicle trips in our cities? One idea is to pay people to bike. This might seem weird at first, but when you take into account the public health benefits and cuts to both road maintenance and congestion created by pulling people out of cars it starts making sense. For something with precedent in the US, the government could offer tax credits for ebikes instead of electric cars. Ebikes have all the benefits of a regular bike, and for that $7,500 tax credit electric car buyers are getting, you could buy several entire ebikes. I suspect a lot of car owners would opt to use an ebike for the 48% of trips that are less than 3 miles when they see how much more fun it is to bike than drive. Long term, denser multiuse zoning and land use would do a great deal to make neighborhoods more walkable and bikeable.

Active transportation isn’t just better for your health and for reducing congestion in the city, it also helps improve the social fabric. It’s a lot easier to stop and talk to a friend or check out a new coffee shop when you’re on a bike or walking. I can recommend reading Just Ride for tips on the essentials of cycling for transport (hint – it’s not spandex). The more people riding, the safer the streets get for those of us using “alternate” transportation.

For more on bikes and urbanism, I’d suggest the War on Cars podcast and the book, Bikenomics. Bikenomics a really good book for interfacing with local business and government officials since economics is a more important driver of policy than human safety or happiness.

Do you cycle or walk for transportation? How does your area handle bicycle, pedestrian, and micromobility users?


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Digital Minimalism – A Review

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I picked up Digital Minimalism by Cal Newport from my local library expecting to read more of the same information I’d seen before: social media companies use slot machine psychology to hook users; in-person communication is higher quality; spending so much time on our phones is hurting our relationships. This was all in there, but beyond the facts of the matter, Newport opened my mind to new ways of thinking about my relationship with technology and how it’s designed.

Minimalism at its core isn’t based on asceticism, where one denies earthly pleasures for the sake of austerity. I often find myself strongly trying to resist any emotional impulse to make purchases. I think this self-imposed austerity may have been causing undue stress by saying “you can’t have that,” instead of the healthier question of “is this something that could bring value to my life?”

In respect to technology, and apps in particular, Newport revisits calls by friends to join social media because it might be useful. He counters by saying that any tool should have a clear benefit to warrant your time. It’s not that any of these tools are bad per se, but since you only have so much time and attention, do you really want to spend it on something that might be useful, when there are so many other things that definitely would be?

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I’ve mentioned before how I struggle to balance my thirst for new information and time to be creative and thoughtful. It’s something I feel I still haven’t worked out, but Digital Minimalism helped me find some new tools to use in this quest.

Digital Minimalism also deals with some of the more sweeping issues resulting from the unique types of distraction available in the 21st Century. There have always been more things to do than time in the day, so distraction is nothing new. We have reached a point, however, with the introduction of the smartphone, where corporations vying for your attention via the “attention economy” have unfettered access to your eyeballs. Even our work is becoming more fractured and distracting with the advent of the gig economy.

Even after the advent of the internet, people were relatively alone in their own heads when they were mobile. Sure, you could listen to a personal soundtrack on your Walkman. With a computer in your pocket, you’re only a quick tap away from whatever information you seek. The end of the bar bet was also the end of pondering.

The book doesn’t preach throwing away your smartphone, although it does suggest methods of using digital tools so they help you achieve your aims instead of those of the advertising companies. For some people, that might mean going back to a phone that only supports calling and texting. For many others, removing social media apps from your phone will suffice. The key is knowing yourself and what you want to accomplish with theses tools.

Digital Minimalism wasn’t what I expected. While it did have some of the same information I had read before regarding the distracting nature of digital technologies, it was neither alarmist nor placating. It presented a well-reasoned and tested set of tools for using digital technologies in a reasonable way that can help you feel a little less discombobulated in this distracting world.

Do you have any thoughts on practices to keep technology from distracting you from what’s important? Do you find it ironic I wrote this post predominantly on my phone? Sound off below!


Disclaimer:  This review is my honest opinion of the book, but I may get financial reimbursement through the affiliate link in this article.

Recycling Rant – Mixed Materials

I know that recycling shouldn’t be our first line of defense to handle our waste streams, but it is something that can help divert materials from the landfill once they already have been created. But you wanna know what really grinds my gears? Mixed material food packaging. Sure, China’s National Sword cut a great big hole through US recycling efforts, but we can still recycle #1 and #2 plastics in most municipalities, and #5 if there’s a Whole Foods somewhere in your area.

If we want to encourage recycling though, we need it to be easy. People are busy, making their waste stream pretty low on their priority list. So, why on Earth would you make a dairy container out of #5 plastic and put a #2 lid on it? You took the time to make sure the two plastics looked identical for cohesive branding, but the only visual difference to the consumer is if they look at the little recycle triangle on BOTH parts of the package. Is this easy? NO! Store bought icing is even worse with its #5 or #2 body and #4 lid. Where the heck am I supposed to recycle a #4 that isn’t a plastic film like a bread bag?

man wearing teal long sleeved shirt

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As engineers, I know we want to find the optimal solution for every component of a design, but for single-use containers, end-of-life needs to be high on that priority list. I’m not a food packaging engineer, but my hierarchy of design would go something like safety/preservation of food, taste impact, mechanical stability, and end-of-life. I’ll grant you that you can’t package in something that will impact taste or safety, but is that #2 lid really making enough of a difference in your product that it’s worth confusing people so you get #2 and #5 plastics mixed up in each other waste streams?

If you ARE a food packaging engineer, I’m begging you to please consider end of life when designing your products. We are on a finite planet, and because plastic is such a useful material, I would really love it if we could easily reclaim it for future use. Whether it’s particularly safe for contact with food or whether we really need so much of it is a whole ‘nother ball of wax. For today, please think through your material choices and try to find ways to make recycling easier.

Moving toward a zero waste, solarpunk, circular economy is high on my wish list for the world, and there’s plenty of research that shows that unless you make something easier than the alternative, people just don’t have the bandwidth. The onus is on the designer, not the consumer for this. We can do better – please do!

Is there anything you’ve run across that was packaged ridiculously? Let us know below!

A Better Way to Pay

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As Adam Flynn said back in 2014, solarpunk takes infrastructure as a form of resistance. One of the biggest pieces of infrastructure that people interact with on a daily basis is payment systems. Payments aren’t as visible roads, or as tangible as housing, but decentralized, democratic payments are an important part of ensuring a brighter future.

We’re at a turning point for money. Since the middle ages, money has been controlled by the nation-state through fiat currency. The first experiments with digital-first money started in the 1980s, and we have seen an explosion in the availability of cryptocurrencies since the Bitcoin whitepaper was released in 2009. While Bitcoin hasn’t lived up to its original goal of being a replacement for fiat currency, it did revolt against the idea that only the state can create money.

Nation-states are now looking into developing crypto-fiat hybrids, and large corporate actors like Facebook are developing their own cryptocurrencies as well. The additional pressure of countries considering bans on cryptocurrencies that shield user identities makes me feel that governments see the danger that a truly decentralized monetary system would pose to their monopoly on power.

Brett Scott at Roar wrote about gentrification of payments from centralized issuers, “Put bluntly, digital payment facilitates a vast new frontier of financial surveillance and control, while also exposing users to new risks not present in the cash infrastructure.” He points out that the current trend for countries to emphasize digital (fiat) money over cash puts people’s finances increasingly into the hands of a small number of banks and state actors.

four assorted cryptocurrency coins

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I’ve previously touched on the subject of designing appropriate incentives into a monetary system, but for now I’m going to focus on how true digital cash could work. Bitcoin is the opposite of private since every transaction ever made with Bitcoin is recorded to its public ledger. Privacy coins allow for transactions to remain private by being recorded to the blockchain with the details obfuscated to all but those who performed the transaction. This has major benefits, particularly for the fungibility of a currency, which is a fancy way of saying that every unit of the money is created equal. For completely public blockchains like Bitcoin, certain Bitcoins may become “stained” due to their use in criminal activities in the past, meaning they may become harder to trade or spend than a “clean” Bitcoin. There is no such distinction between the status of a specific unit of Monero, for instance, since its past is unknown. The MimbleWimble protocol is a new blockchain which greatly simplifies the privacy aspects of a blockchain resulting in less power and data consumption.

The problem with most cryptocurrencies right now, however, is that they typically use what is called Proof of Work to verify transactions on the chain. Proof of Work burns large amounts of energy in an effort to “prove” the validity of the blockchain. Various other schemes have been developed to secure blockchain networks including Proof of Stake, Delegated Proof of Stake, and Proof of Cooperation. Proof of Cooperation was developed for FairCoin to enable a less energy-intensive verification method for blockchains. I think that a Proof of Cooperation-based MimbleWimble coin could provide the privacy and lower energy consumption that would be desirable for digital cash.

business bank chip credit card

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This digital cash would restore the peer-to-peer nature of cash and avoid the data-mining perils of current digital payment companies like Visa or PayPal. It is still dependent on computing technology to work, which makes me feel like it would be less inclusive than actual cash. In an increasingly digital-first world, however, thoughtfully-designed cryptocurrencies will be more inclusive than the options designed by corporations or governments. For more on the subject of post-capitalist money, check out In each other we trust: coining alternatives to capitalism by Jerome Roos.

Money is often considered a taboo subject, but feel free to let us know your thoughts below. How do you think a separation of money and state could be liberating?