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When I first got my 3D printer, I built an enclosure to protect it from dust, maintain a consistent temperature, and minimize noise. I was surprised to find that the enclosure didn’t reduce noise that significantly. I then placed a patio paver under my printer, which made it noticeably quieter, but it was still audible from other rooms in my house. Recently, I found the most effective noise reduction solution: squash balls. These balls are designed with varying bounce levels, indicated by colored dots. The “double-yellow dot” balls have a very low bounce, making them ideal for dampening vibration, which is the primary cause of printer noise. I found an existing design for squash ball feet, printed it, and hot glued them evenly under my patio paver. My current setup includes the enclosure, patio paver, and squash balls under the paver. Now, the printer is so quiet that I actually can’t tell if it’s running, even when I’m in the same room. Occasionally, I will hear the stepper motors,...
a year ago

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More from Alex Meub

The Magic of Solving Problems with 3D Printing

3D Printing has allowed me to be creative in ways I never thought possible. It has allowed me to create products that provide real value, products that didn’t exist before I designed them. On top of that, it’s satisfied my desire to ship products, even if the end-user is just me. Another great thing is how quickly 3D printing provides value. If I see a problem, I can design and print a solution that works in just a few hours. Even if I’m the only one who benefits, that’s enough. But sharing these creations takes the experience even further. When I see others use or improve on something I’ve made, it makes the process feel so much more worthwhile. It gives me the same feeling of fulfillment when I ship software products at work. Before mass-market 3D printing, creators would need to navigate the complexity and high costs of mass-production methods (like injection molding) even to get a limited run of a niche product produced. With 3D printing, they can transfer the cost of production to others. Millions of people have access to good 3D printers now (at home, work, school, libraries, maker spaces), which means almost anyone can replicate a design. Having a universal format for sharing 3D designs dramatically lowers the effort that goes into sharing them. Creators can share their design as an STL file, which describes the surface geometry of their 3D object as thousands of little triangles. This “standard currency” of the 3D printing world is often all that is required to precisely replicate a design. This dramatically lowers the effort that goes into sharing printable designs. The widespread availability of 3D printers and the universal format for sharing 3D designs has allowed 3D-printed products to not only exist but thrive in maker communities. This is the magic of 3D printing: it empowers individuals to solve their own problems by designing solutions while enabling others to reproduce those designs at minimal cost and effort.

6 months ago 90 votes
Building the DataToaster 3000

Last summer, I was inspired by a computer that was built inside of a toaster that I saw at a local computer recycling store. The idea of a computer with the design of a home appliance was really appealing and so was the absurdity of it. It occurred to me that this would be a fun and creative way to integrate technology into my life. After thinking about it, I realized there’s also something visually appealing about how simple and utilitarian toasters are. I have major nostalgia for the famous After Dark screensaver and I think this is why. I knew now that I wanted to make my own attempt at a toaster/computer hybrid. I decided to do just that when I created the DataToaster 3000: a toaster NAS with two 3.5 inch hard disk docking stations built inside it. The hard disks can be easily swapped out (while powered off) without taking anything apart. It uses a Zimaboard x86-64 single board computer and even has a functional knob that controls the color of the power LED. I designed a fairly complex set of 3D-printed parts that attach to the base of the toaster and hold everything neatly in place. This allows it to be easily disassembled if I ever want to make any modifications and also hopefully makes the project easier to build for others. It’s a ridiculous thing but I really do love it. You can find the build guide on Instructables and the 3D models on Printables.

9 months ago 80 votes
Building a Removable Bike Basket for the Yepp Rack

I wanted to add more hauling capacity to my bike and was looking for something compatible with my Yepp rear rack. I also use my rack with a child seat (the Yepp Maxi) which has a mechanism that allows it to attach and detach easily without sacrificing safety. I was thinking it would be great to build a Yepp compatible rear basket that could I just as quickly attach/detach from my rack. I designed a removable Yepp-rack-compatible rear basket that consists of a milk crate, some plywood for stability and a 3D printed bracket threaded for M6 bolts which hold it all together. It can be attached and removed in seconds and is very secure. 3D Printed Mounting Bracket I modeled my mounting bracket after the one on the Yepp Maxi childseat. After a few iterations I was able to make it perfectly fit. I printed it in PETG filament so it was UV resistant and then installed threaded inserts for M6 bolts to attach it to the milk crate and my rear rack. 3D Print and Build Instructions You can find the 3D print on Printables and a full build guide on Instructables.

10 months ago 75 votes
The Yoto Mini is Perfect

The Yoto Mini is one of my favorite products. The team behind it deeply understands its users and put just the right set of features into a brilliantly designed package. I have no affiliation with Yoto, I’m just a happy customer with kids who love it. If you aren’t aware, Yoto is an audio platform for kids with what they call “screen-free” audio players (even though they have little pixel LED screens on them). The players are Wi-Fi enabled and support playing audio from credit card-sized NFC tags called Yoto cards. Yoto sells audio players and also licenses audio content and offers it on its platform as well. The cards themselves do not contain any audio data, just a unique ID of the audio content that is pulled from the cloud. After content is pulled on the first play, it is saved and played locally from the player after that. Yoto also supports playing podcasts and music stations without using cards. Their marketing puts a lot of emphasis on the platform being “ad-free” which is mostly true as there are never ads on Yoto cards or official Yoto podcasts. However, some of the other podcasts do advertise their content. So, what’s so great about the Yoto Mini? This concept isn’t new as there have been many examples of audio players for kids over the years. What sets it apart is how every detail of the hardware, mobile app, and exclusive content is meticulously designed and well executed. Yoto Mini Hardware The main input methods of the Yoto Mini are two orange knobs, turning the left knob controls volume and the right knob navigates chapters or tracks. Pressing the right knob instantly plays the Yoto Daily podcast and pressing it twice plays Yoto Radio (a kid-friendly music station). These actions are both configurable in the mobile app. The NFC reader slot accepts Yoto cards and instantly starts playing where you left off after you insert one. It has a high-quality speaker that can be surprisingly loud, an on/off button, a USB-C charging port, an audio output jack, and a small pixel display that shows images related to the audio content. The Yoto Mini is also surprisingly durable. My kids have dropped it many times on hard surfaces and it still basically looks as good as new. Yoto understands that the physical audio player itself is primarily used by younger kids and the design reflects this. My 3-year-old daughter was able to figure out how to turn it on/off, start listening to books using cards, and play the Yoto Daily podcast each morning which was empowering for her. This was her first technology product that she was fully capable of using without help from an adult. I can’t think of many other products that do this better. Yoto Mobile App The Yoto team understands that parents are users of this product too, mostly for managing the device and its content. Yoto has built a very good mobile experience that is tightly integrated with the hardware and provides all the features you’d want as a parent. From the app, you can start playing any of the content from cards you own on the player or your phone (nice if your kids lose a card), you can set volume limits for both night and day time, you can set alarms, and configure the shortcut buttons. You can record audio onto a blank Yoto card (which comes with the player) if your kid wants to create their own story, link it to their favorite podcast or favorite music. The app even lets you give each track custom pixel art that is displayed on the screen. Audio Content By far the most underrated feature is a daily podcast called Yoto Daily. This ad-free podcast is run by a charming British host and it is funny, entertaining, and educational. My kids (now 4 and 7) look forward to it every morning and the fact that it’s daily free content that is integrated directly into the Yoto hardware is amazing. To me, this is the killer feature, as my kids get to enjoy it every day and it’s always fresh and interesting. Yoto licenses content from child book authors, popular kid’s shows, movies, and music (recently the Beatles) which are made available in their store. I also discovered that Yoto does not seem to lock down its content with DRM. My son traded some Yoto cards with a friend and I assumed there would be some kind of transfer or de-registration process but to my surprise, they just worked without issue. Conclusion The Yoto Mini is a delightful product. The team behind it thought through every detail and made it an absolute joy to use both as a child and parent. I’m impressed at how well the Yoto team understands their users and prioritizes simplicity and ease of use above all else.

a year ago 67 votes

More in programming

Computers Are a Feeling

Exploring diagram.website, I came across The Computer is a Feeling by Tim Hwang and Omar Rizwan: the modern internet exerts a tyranny over our imagination. The internet and its commercial power has sculpted the computer-device. It's become the terrain of flat, uniform, common platforms and protocols, not eccentric, local, idiosyncratic ones. Before computers were connected together, they were primarily personal. Once connected, they became primarily social. The purpose of the computer shifted to become social over personal. The triumph of the internet has also impoverished our sense of computers as a tool for private exploration rather than public expression. The pre-network computer has no utility except as a kind of personal notebook, the post-network computer demotes this to a secondary purpose. Smartphones are indisputably the personal computer. And yet, while being so intimately personal, they’re also the largest distribution of behavior-modification devices the world has ever seen. We all willing carry around in our pockets a device whose content is largely designed to modify our behavior and extract our time and money. Making “computer” mean computer-feelings and not computer-devices shifts the boundaries of what is captured by the word. It removes a great many things – smartphones, language models, “social” “media” – from the domain of the computational. It also welcomes a great many things – notebooks, papercraft, diary, kitchen – back into the domain of the computational. I love the feeling of a personal computer, one whose purpose primarily resides in the domain of the individual and secondarily supports the social. It’s part of what I love about the some of the ideas embedded in local-first, which start from the principle of owning and prioritizing what you do on your computer first and foremost, and then secondarily syncing that to other computers for the use of others. Email · Mastodon · Bluesky

2 days ago 4 votes
New Edna feature: multiple notes

I started working on Edna several months ago and I’ve implemented lots of functionality. Edna is a note taking application with super powers. I figured I’ll make a series of posts about all the features I’ve added in last few months. The first is multiple notes. By default we start with 3 notes: scratch inbox daily journal Here’s a note switcher (Ctrl + K): From note switcher you can: quickly find a note by partial name open selected note with Enter or mouse click create new note: enter fully unique note name and Enter or Ctrl + Enter if it partially matches existing note. I learned this trick from Notational Velocity delete note with Ctrl + Delete archive notes with icon on the right star / un-star (add to favorites, remove from favorites) by clicking star icon on the left assign quick access shortcut Alt + <n> You can also rename notes: context menu (right click mouse) and This note / Rename Rename current note in command palette (Ctrl + Shift + K) Use context menu This note sub-menu for note-related commands. Note: I use Windows keyboard bindings. For Mac equivalent, visit https://edna.arslexis.io/help#keyboard-shortcuts

2 days ago 4 votes
Thoughts on Motivation and My 40-Year Career

I’ve never published an essay quite like this. I’ve written about my life before, reams of stuff actually, because that’s how I process what I think, but never for public consumption. I’ve been pushing myself to write more lately because my co-authors and I have a whole fucking book to write between now and October. […]

3 days ago 11 votes
Single-Use Disposable Applications

As search gets worse and “working code” gets cheaper, apps get easier to make from scratch than to find.

3 days ago 9 votes