Gareth’s Tips, Tools, and Shop Tales is published by Cool Tools Lab. To receive the newsletter a week early, sign up here.
* Talk to me. Tell me a story. Share me a tip. A tool. * Support my work by buying my tips books (Vol. 1, Vol. 2). * Take out an Unclassified in this newsletter to reach fellow makers.
New Electronics Series from Becky Stern
My old Make: colleague, Becky Stern, has a new video series that she’s doing for the electronics component company, Digi-Key. Becky has always done an impressive job of explaining what can be intimidating technical information in an entertaining and digestible way. If this first installment, an introduction to LEDs, is any indication, this series looks to deliver more of her welcome brand of accessible tech education.
How to Get Clearer and Stronger Transparent FDM Prints
In this CNC Kitchen video, Stefan shows the special settings you can use to create superior-looking clear prints using an FDM (Fused deposition modeling)printer and clear filament. He also looks at how these parameters make your parts super strong.
Making Your Own Vinyl Stickers
If you’ve been attracted to the idea of creating your own custom vinyl stickers, this video shows you how. All you basically need is a crafting vinyl cutter (a few hundred dollars) and some sheets or rolls of vinyl material.
CA Glue Accelerator from Baking Soda and Water
One of the best takeaways from this Bill Making Stuff video (where he celebrates his 50th episode) is his tip for creating your own accelerator for CA glue. As you likely know, there are commercial accelerators, but they smell funny, have nasty stuff in them, and are combustible. You’re even supposed to wear eye protection when using them, though nobody does. You may also know about using baking soda as an accelerator. It works great, but it leaves a dusty powder on everything that you have to clean off. Bill mixes his baking soda with water in a spray bottle and has found that it works great and creates less mess. I will definitely be trying this.
How a Gas Pump Knows When to Turn Itself Off
If you’ve ever wondered how a gas pump nozzle knows when to shut off when your tank is full, this video reveals the clever design. Venturi tubes, Bernoulli principle, negative pressure — it turns out the design is far more complicated that you might expect. I always assumed it was some sort of an electronic sensor, but it’s purely mechanical.
“I was surprised to see a recommendation for the OXO sink strainer. I love OXO products, but that strainer is a disappointment to me. I do like the inversion feature, but stuff still gets stuck in and around the holes. The silicone gets slimy. I have black slime after a week in my kitchen drain, probably from teensy bits of lettuce and herbs and salad dressing. UGH. (Cleaning out the bowl with a paper towel before washing it seems to help.) I don’t know that a standard issue strainer would make me any happier (though I’d love to quit using so many paper towels). I’m glad yours pleases you; my experience is just different.”
This is a great example of that adage made popular by early hacker culture: “Your mileage may vary” (YMMV). When I posted my review of the strainer on Boing Boing, the first few responses were similar to Candy’s and I got nervous, thinking I had prematurely decided a tool was a winner without giving it an honest testing myself. But then the positive reviews came and they were the overwhelming sentiment. And on Amazon, it has 17.5K reviews at 4.7 stars. After a month, we are more than happy with ours, but, as in all things, YMMV. Thanks for sharing your experience, Candy!
Become a Patron!Support our reviews, videos, and podcasts on Patreon!
Cool tools really work.
A cool tool can be any book, gadget, software, video, map, hardware, material, or website that is tried and true. All reviews on this site are written by readers who have actually used the tool and others like it. Items can be either old or new as long as they are wonderful. We post things we like and ignore the rest. Suggestions for tools much better than what is recommended here are always wanted.
Drawing from her experience as a professional poker player and decision strategist, How to Decide offers a practical toolkit for making better choices by separating decision quality from outcome quality — teaching you to think in probabilities, overcome cognitive biases, and stop second-guessing yourself.
Core Principles
Stop “Resulting”
“Resulting” is Duke’s term for judging a decision’s quality by its outcome. A good decision can lead to a bad outcome (and vice versa) because of factors outside your control. When you overfit decision quality to outcome quality, you risk repeating errors that preceded a lucky good outcome and avoiding good decisions that didn’t work out due to bad luck.
The Only-Option Test
When stuck between choices, ask yourself: “If this were the only option I had, would I be happy with it?” If you’d be happy with either option, the decision is actually easy — flip a coin. This test reveals that “hard” decisions are often easy because both options are acceptable.
Think in Probabilities
Instead of binary thinking (”this will work” or “this won’t”), assign percentage likelihoods to outcomes. Every decision involves the Three P’s: Preferences (what you value), Payoffs (potential gains and losses), and Probabilities (how likely each outcome is). This framework forces you to acknowledge uncertainty and consider alternatives.
Get the Outside View
Solicit feedback from others before making decisions, but do it right: let them answer first before expressing your own opinion to avoid contaminating their views. Ask them to argue against your position. The goal is getting genuine perspectives, not confirmation of what you already believe.
Try It Now
Think of a decision you’re currently facing with two or more options.
Apply the Only-Option Test to each choice: “If this were my only option, would I be happy with it?”
For each option, list the possible outcomes and assign a probability (percentage) to each.
Apply the Happiness Test: “How much will this affect my happiness in a week? A month? A year?” If not much, spend less time deciding.
If the options still seem close, flip a coin — and notice how you feel when it lands. Your reaction reveals your true preference.
Quote
“The quality of the outcome casts a shadow over our ability to see the quality of the decision.”
