Hobby Projects

As part of my thesis on silicon carbide integrated circuit design, I received transistor models in Verilog-A. I wanted to simulate the circuits I design in free open-source software on my laptop, but this software is not directly compatible with Verilog-A models. This article is a technical step-by-step guide on how to translate Verilog-A models into Qucs-s/NGspice.

Together with Vadims Kissels and Miranda Buil, I organised a 3D printing workshop at the international school in Breda. We let 50 high school students from different ages learn some simple 3D design software, and at the end of the day, all of their designs were 3D printed!

Wouldn't it be nice if your pictures and files are automatically backed up and accessible from everywhere? And you maintain full ownership of all your documents and photos? That's where this self-hosted Raspberry Pi NAS comes in. Using a handful of free and open-source projects, I can keep a copy of all my important digital assets in the security of my own home. No more cloud subscriptions needed! This is a Raspberry Pi server project including network configuration, with zero lines of code written.

With a friend from university, I tried to build a radio-controlled flying wing. The main requirements are ease of flying and robustness, since we would probably crash it a lot. Therefore, the wings are made of CNC cut foam with a fiberglass composite skin. The first test flight went very well!

While building the RC Flying Wing, I discovered the most elegant way to make RC airplanes out of XPS foam: using a computer-controlled hot wire cutter. This machine has two independent XY-axis and a hot wire between them. This allows all kinds of wing geometries to be cut in a few minutes, such as tapered wings or wings with dihedral.

Commissioned by the Johanna Manders Electrical Engineering Makerspace, I designed this logic gates learning kit. It allows students to play with small modules to build digital logic circuits. The modules can be daisy-chained to make larger circuits, and I have written a manual that gives students a series of exercises to follow.

As a birthday gift for my mother, I made a letter clock. Inspired by the “qlocktwo™” product. The clock consists of an ESP32 microcontroller and a neopixel LED matrix. It fetches the time using WiFi.

A cute Christmas gift from 2023: a small Christmas tree with illuminated Christmas ornaments. Watch out, there is a cat hiding in the tree 😉

In 2021, I designed a coreXY-3D printer based around parts of a broken printer and some extra components. All electronics are housed in the printer body, including a print monitoring webcam and Raspberry Pi running Octoprint.

Concurrently with the Q-bot 3D printer, I built a small rocket with the goal of taking an egg to 1 km and getting it safely back on the ground. This was a team project, as a part of the Delft Aerospace Rocket Engineering Association.