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Last week, I forgot to include a link to the oscillating multi-tool tips video I included. Thanks to those of you who kindly pointed out the omission. In the future, if this happens, you can always go to the channel I mention, search on the subject, and find the video. My apologies for the hiccup.
Tips Busters: Amazingly Stupid Tape Tricks
Months back, I proposed the idea of doing a “Tips Busters” section where I deputize readers to try out a tip, any tip they see that appears too good to be true, to determine whether it works, doesn’t work, sorta works. I’m still hoping to put such a series together. If you want to bust a tip or have a tip to bust, message me. In the meantime, I’m going to start running pieces from others who are testing and evaluating tips. On this episode of Stumpy Nubs, James looks at a number of dubious (at best) painter’s tape “hacks” as found on YouTube. There are many such tips. As James points out, lots of them are just plain silly.
Understanding Tolerances for 3D Design and Printing
Via Maker Update comes this gem of a video on Practical Alchemy about understanding parts tolerances when designing in Fusion 360 (and other CAD programs) and how to ensure that your 3D designed parts will properly fit when sent to a 3D printer. They also show you how to create a 3D printed “Fit Guide” to better understand and accommodate tolerances for your particular printer.
A User’s Guide to H-Bridge Motor Drivers
Anyone with even a casual familiarity with hobby electronics is likely familiar with H-bridge motor drivers. So named for the H-like configuration of the circuit schematic, with its 4 switching elements, these drivers allow you to control DC motors for speed and moving forwards, backwards, left, and right. In this DroneBot Workshop, they look at a number of popular H-bridge drivers (e.g. L298N, DRV8871, and the MX1508) and the types of DC motors they can control. At over 1-hour, this is a useful crash course in understanding and using this common drive train controller.
Animations of 75 Different Knots
Via the Tools for Possibilities newsletter comes this amazingly useful resource. Knot-tying is a fundamental maker skill. But learning to tie them from a text, or looking at still images, can make them seem unnecessarily confusing and complicated. I don’t know about you, but seeing these knot animations immediately makes me want to grab a rope and go to lashing school.
Maker Slang
Slang, jargon, and technical terms for the many realms of making things.
Surface profile – The 3-dimensional tolerance zone around the surface of an object, often one that’s a complex curve or shape. This profile requires that every point along the surface lies within a specified tolerance range.
Slush casting – A form of casting where material is “slushed around” inside of a mold, creating a thin layer on the outer walls of the casting. This technique is most often used to create a lightweight, hollow castings. It can also be done as the first pour in a highly-detailed mold, with a second pour finishing a solid cast.
The Rule of Cool – In making anything from realms of the imagination (e.g. sci-fi, fantasy, other fiction), the overriding of realism, the laws of physics, and practicality in the service of sheer cool factor.
Shop Talk
In response to my piece on toilet floats and valve reseating tools, I got an interesting message from a reader. He was taken aback by the fact that doing this sort of basic household plumbing was even a question for me. He assumed that any maker/handyperson would do this type of maintenance/repair work without even thinking about it. This led him to ask: “Is there anything you look at and think: ‘I cannot fix THAT!’ I’ve never once thought that. Am I in the majority or minority?”
My situation might be somewhat unique in this regard. I have severe spinal arthritis. So, many maintenance, repair, and DIY projects are outside my reach. Even to replace the float tank, I couldn’t reach down and shut off the very frozen water intake valve on the toilet. I had to get a friend to come over and do that for me.
But even for the more physically able, I’m sure there are preferences. I know plenty of people who loathe house painting, and others who would never think about doing electrical work. And I know plenty of electronics nerds who build robots, microcontroller projects, and all sorts of other high-tech makery who wouldn’t think about doing traditional shopcraft (woodworking, metalwork, etc). And vice versa.
Different strokes for different folks. And so on and so on and scooby dooby dooby.
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In Fluent Forever, opera singer turned language learning expert Gabriel Wyner presents a systematic approach to learning languages that draws on memory science, cognitive psychology, and his own experience becoming fluent in multiple languages on tight deadlines.
The core of his method involves three key principles: 1) Learn the sounds of the language first, before vocabulary or grammar, 2) Avoid translating between languages by using images and personal connections instead of English translations, and 3) Use spaced repetition software to optimize the timing of review sessions.
Through this approach, learners create personalized flashcards that connect sounds, images, and memories in ways that make foreign vocabulary and grammar stick permanently in long-term memory.
Rather than relying on rote memorization or translation drills, Wyner's system aims to rewire how the brain processes the new language from the ground up.
Here are four key pieces of advice from the book:
Start with pronunciation training before vocabulary
The basis of any language is its sounds, not its words. If you begin with sounds, you'll remember words better. You're not trying to learn a written language with some sounds tacked on; you're trying to learn a spoken language that happens to have a written form.
Don't use translations — use images instead
Translation is a crutch that keeps you from thinking in your target language. Instead of learning that “gato” means “cat,” learn that “gato” conjures up the image and concept of an actual cat. Use pictures and personal memories rather than English translations.
Use spaced repetition systems to review optimally
The brain learns best when it's about to forget something. By using spaced repetition software like Anki to test yourself on information right before you would naturally forget it, you can learn much more efficiently and make memories that last.
Make personal connections to every word and rule
You'll remember words and grammar rules much better if you connect them to your own life experiences. When learning grand-mère (grandmother), think about your own grandmother. These personal connections make foreign words feel less foreign and more meaningful.
