Who else remembers Spirograph? When making elaborate spiral doodles, did you ever wish for a much, much bigger version? [Fortress Fine Woodworks] had that thought, and “slapped a router onto it” to create a gorgeous walnut table. This printed sanding block was a nice touch. The video covers not only 3D printing the giant Spirograph, […]
The Jye Tech DSO-150 is a capable compact scope that you can purchase as a kit. If you’re really feeling the DIY ethos, you can go even further, too, and kit your scope out with the latest open source firmware. The Open-DSO-150 firmware is a complete rewrite from the ground up, and packs the scope […]
Most of us learned to design circuits with schematics. But if you get to a certain level of complexity, schematics are a pain. Modern designers — especially for digital circuits — prefer to use some kind of hardware description language. There are a few options to do similar things with PCB layout, including tscircuit. There’s […]
When you start building lots of something, you’ll know the value of accurate fixturing. [Chris Borge] learned this the hard way on a recent mass-production project, and decided to solve the problem. How? With a custom fixturing tool! A 3D printed one, of course. Chris’s build is simple enough. He created 3D-printed workplates covered in […]
[Agatha] sent us this stunning multimeter she built as a gift for her mom. Dubbed the Mohmmeter — a playful nod to its ohmmeter function and her mom — this project combines technical ingenuity with heartfelt craftsmanship. At its core, a Raspberry Pi Pico microcontroller reads the selector knob, controls relays, and lights up LEDs […]
If you’ve ever fumbled through circuit simulation and ended up with a flatline instead of a sine wave, this video from [saisri] might just be the fix. In this walkthrough she demonstrates simulating a Colpitts oscillator using NI Multisim 14.3 – a deceptively simple analog circuit known for generating stable sine waves. Her video not […]
As computers have gotten smaller and less expensive over the years, so have their components. While many of us got our start in the age of through-hole PCBs, this size reduction has led to more and more projects that need the use of surface-mount components and their unique set of tools. These tools tend to […]
Entry-level oscilloscopes are a great way to get some low-cost instrumentation on a test bench, whether it’s for a garage lab or a schoolroom. But the cheapest ones are often cheap for a reason, and even though they work well for the price they won’t stand up to more advanced equipment. But missing features don’t […]
The user interface of things we deal with often makes or breaks our enjoyment of using a device. [Janne] from Fraktal thinks so, he has an espresso machine he enjoys but the default controls were not what he was looking for and so in true hacker fashion he took what was and made it his […]
No doubt many readers have at times wished to try their hand at blacksmithing, but it’s fair to say that acquiring an anvil represents quite the hurdle. For anyone not knowing where to turn there’s a video from [Black Bear Forge], in which he takes us through a range of budget options. He starts with […]