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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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Speech-to-Text by Borg is an automated transcription service with a generous free tier. You can upload MP3s up to 25MB (roughly 30 minutes of audio) and get fast, high-quality transcripts without paying a cent. They offer a paid tier at $0.06/hour for longer recordings. I use it for interviews, meeting notes, and voice memos. — MF
Compare yourself to others
Than Average is a small, “unscientific” investigation into how you compare yourself to others—for fun. Just answer the questions instinctively and see where you land in a room with 100 strangers. You can view all the questions and see how many people have answered them. I left my emotions and insecurities out of it, and found all the results interesting. — CD
Used stuff marketplace
Rather than trashing my old stuff, I like to find a new home for it, selling it or giving it away for free. The real action for used stuff has moved away from Craigslist to Facebook Marketplace. (The broadest reach is on eBay, but everything needs to be packaged for shipping.) Facebook Marketplace is the best for local and bulky things. It is a lot easier to use than Craigslist, and in my experience has 10 times the responses (for selling) or varieties (for buying). It is free to use. If you have patience you can find almost anything you want on Facebook Marketplace used, or get rid of almost anything you want with minimal hassle. — KK
Suction cup caddy
I needed a caddy for a newly tiled shower stall but was skeptical of suction-cup mounts, which in my experience always fail. The Hasko Shower Caddy changed my mind — it uses a knob-tightening mechanism that creates an incredibly strong hold on smooth tile. I installed it a month ago and it hasn't budged, even when loaded with heavy bottles and supplies. For rough surfaces, it includes adhesive mounting discs. — MF
Beginner’s Wood Whittling Kit
Through ACER, an online integration community I am part of, I occasionally host wood whittling sessions. I am not a detail-oriented person or particularly skilled with my hands, but I find it very soothing and meditative to shape and smooth out tree sticks, which I then glue crystals and feathers onto to create wands. My only tool is this beginner’s carving kit by BeaverCraft. I’ve used it for a year now, and the knives are still sharp and easy to hold. They’re helping to build my confidence to someday carve a figure. — CD
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