When you really love your pawed, feathered, or scaled friends, you build projects for them. (Well, anyway, that’s what’s happened to us.) For the 2025 Pet Hacks Challenge, we asked you to share your favorite pet-related hacks, and you all delivered. So without further ado, here are our favorites, as well as the picks-of-the-litter that […]
If you’re designing a new jet-powered airplane, one of the design considerations is the number of jet engines you will put on it. Over the course of history we have seen everywhere from a single engine, all the way up to four and beyond, with today airliners usually having two engines aside from the Boeing […]
It’s an inconvenient fact that most of Earth’s largesse of useful minerals is locked up in, under, and around a lot of rock. Our little world condensed out of the remnants of stars whose death throes cooked up almost every element in the periodic table, and in the intervening billions of years, those elements have […]
Multimaterial printing was not invented by BambuLabs, but love them or hate them the AMS has become the gold standard for a modern multi-material unit. [Daniel]’s latest Mod Bot video on the Box Turtle MMU (embedded below) highlights an open source project that aims to bring the power and ease of AMS to Voron printers, […]
As we watched the latest SpaceX Starship rocket test end in a spectacular explosion, we might have missed the news from Japan of a different rocket passing a successful test. We all know Honda as a car company but it seems they are in the rocket business too, and they successfully tested a reusable rocket. […]
The solenoid and punch side of the machine. {Credit: Simon Boak) Although [Simon Boak] had no use for an automatic paper tape punch, this was one of those intrusive project thoughts that had to be put to rest. With not a lot of DIY projects to look at, the first step was to prototype a […]
The Blackberry made phones with real keyboards popular, and smartphones with touch keyboards made that input method the default. However, the old flip phone crowd had just a few telephone keys to work with. If you have a key-limited project, maybe check out the libt9 library from [FoxMoss]. There were two methods for using these […]
At one point in time mechanical seven segment displays were ubiquitous, over time many places have replaced them with other types of displays. [Sebastian] has a soft spot for these old mechanically actuated displays and has built an open-source 7-segment display with some very nice features. We’ve seen a good number of DIY 7-segment displays […]
We’ve all seen the exploded view of complex things, which CAD makes possible, but it’s much harder to levitate parts in their relative positions in the real world. That, however, is exactly what [fellerts] has done with this wristwatch, frozen in time and place. Inspired by another great project explaining the workings of a mechanical […]
Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice, however, it’s a bit more complicated– if you want that sweet, sweet soil amendment in a reasonable amount of time, and to make sure any food-born pathogens and weed seeds don’t come through, you need a “hot” compost pile. How to tell […]