Pimp My 3D Printer: Part 2 – AM8 Conversion

In 2018, I bought my first and only 3D-printer: The Anet “Firestarter” A8 DIY kit. A few months later, I wrote a post about what upgrades and modifications I did to this printer (No more firestarter). Now, in 2022, I once again upgraded this printer. Like the Ship of Theseus, at what point does it stop being the original printer?… Read More →

NFC Hacking: Part 1 – Authentication Systems Security

Check out the project on GitHub. Recently, I became interested in the security of various NFC/RFID contactless access control systems. You have probably seen some in action, for example smart door locks which you can unlock using a small key fob. Even credit cards and recent smartphones use the same technology to pay by touching the register terminal. I am… Read More →

Design And Assembly Of An I2C Relay PCB

Check out the project on GitHub. During the last few months, two interesting opportunities coincided: First, I was asked to design a purpose-built electrical control board for a water pumping system. In addition, I had an idle offer for financial sponsorship waiting in my inbox. This finally gave me a reason and the means to expand my PCB design skills… Read More →

AVR ISP Programmer

Like many makers, I took my first steps in hardware programming using the Arduino platform. And just as Atmel Microchip hoped, I am still pretty faithful to the AVR platform today. To program AVR microchips, you need some kind of (USB) programmer. I opted for a cheap USBasp clone, because it is cheap but still reliable. However, you still have… Read More →

Upgrading a LEGO Power Brick

Do you remember the good times of LEGO? Or even LEGO Technic? Turns out that LEGO is a timeless classic and still very much fun. What is not timeless however, is battery technology. Several old LEGO models are powered by 9 Volts via six 1.5 AAA batteries. This proved to be cumbersome, because the batteries would drain quickly or even… Read More →

Pimp My 3D Printer

Adventures in tuning my Anet-A8 3D Printer. About a year ago, I purchased a rather inexpensive “DIY” 3D printer kit directly from the country that sells everything; China. My model of choice was the “Anet-A8” printer, due to its low price and big online support community. Not only the price and support led to my decision, but also the potential… Read More →

The Steampunk Wristwatch

Recently, I visited an Anime and Cosplay convention. Although I rarely watch any Anime, I do enjoy crafting costumes and in particular steampunk-esque things. Of course, I could not let the opportunity pass. So I decided to dress up as a steampunk gentleman. Nixie Tubes I always wanted to build something with Nixie tubes. Those are cathode vacuum tubes, which… Read More →

A DIY Handbrake for Simracing

Of course, there is always a Need for Speed in racing simulations. But sometimes, there is also the Need for Smooth Drifting Around Tight Corners. And pressing a button on my steering wheel controller just doesn’t cut it in terms of control and realism. So, I set out to acquire a handbrake controller, but quickly decided to build my own… Read More →

Building a Weather Satellite Antenna

During my adventures with SDR (software-defined radio), the need for a proper QFH antenna arose. This type of antenna is used to receive signals that are circularly polarized, such as APT weather maps sent by the NOAA satellites. I used a PVC pipe and a standard shielded coax cable from the local hardware store, and a copper tube meant for… Read More →