BIC Pencils as Pivots for 3D Printed Parts (11 January 2026)
A short article about using commonly available BIC mechanical pencils as low-cost pivots for 3D printed parts.
Blog Posts and Tutorials
Repair of a Marine Ammeter (28 December 2025)
I found a marine-rated digital ammeter at a thrift store, but when I got home I was disappointed to find it wasn't working. I show how I found the root cause, fixed the meter, and explain the lifetime concerns of the components which caused the failure.
100% Human Written (3 December 2025)
AI-written text is abound online and in the workplace. My content policy affirms my commitment to 100% human-written work, in my personal and professional life.
Kafarowski Family Turkey Recipe (13 October 2025)
Turkey dinners are a family tradition for Thanksgiving, Easter and Christmas. I've captured our recipe and process carefully, and following it helps me consistently make a great turkey, stress-free.
Notes on ZorinOS (1 September 2025)
This year I switched from running Windows to ZorinOS full-time on my personal devices. I'll explain how I did it, what tweaks I've made to the OS, and why it took an unexpectedly large weight off my shoulders.
Totality - An Eclipse Reflection (8 April 2024)
Experiencing totality during the April 2024 total solar eclipse. 125 seconds that will live in my memory forever.
Fix The TWSBI ECO Cap Falling Off The Tail (2 July 2023)
Incorrect assembly of your TWSBI ECO can result in the cap not firmly sitting on the tail. Learn how to put your pen back together so that the cap will stay on on nice and snug.
Version Control for KiCAD PCB Projects (16 December 2022)
Version control is a common tool used in the software development world that tracks file revisions and enables developer collaboration. Although the visual nature of PCB and schematic designs presents a barrier to using it in the traditional way, in this article I propose an effective method for bringing the advantages of version control to electronics developers.
Unit Testing Your Embedded Code Directly In STM32CubeIDE (31 July 2022)
Unit testing is a powerful tool for improving the speed and quality of your embedded system development process, but it can be tricky to integrate into your workflow. By the end of this tutorial, you will be able to start writing unit tests directly in STM32CubeIDE that will compile and execute against your embedded code natively on your development machine.
Intro to TouchGFX Embedded Graphics (30 July 2020)
Does your user interface really live up to the expectations of your customer? In today's era of HD-capable smartphones, consumers expect high quality, snappy, visually appealing graphical user interfaces. In this tutorial we'll set up and build a demo application using TouchGFX, a powerful and easy-to-use GUI framework for STM32 microcontrollers.
Advancement of Standards (28 October 2016)
Apple unveiled the new MacBook Pro yesterday, and there are some really interesting changes to it aside from the usual changes in form factor and display. Here is why the Touch Bar and the emphasis on USB-C ports make this year’s MacBook Pro really stand out.
