whoami
I'm Edgar, though most people call me Edgy. I've taken a gloriously non-linear route to get here. I fell in love with electronics as a kid, studied materials science, started a PhD in metallurgy and walked away from it, reinvented myself as a software engineer, and these days I spend my time exploring AI and robotics.
The common thread through all of it is the same one I've had since I was small: an irresistible need to open things up and find out how they work. This is where I write that down: the builds, the dead ends, the things I learn while reanimating the machines I'm curious about.
Projects
Ar-tur
Proj 01 · ActiveOne of my earliest memories is of Ar-tur, a remote-controlled robot and one of my very first toys. I remember steering him across the room to bring me a towel after a shower. He didn't last long: I was far too curious about what was inside, so I opened him up to see how he worked, and he never recovered.
It's been a long time since I spent my days at the intersection of electronics and software, and I've missed it. This is me re-engaging with that: robotics as it is today. Ar-tur is the code name I've given the endeavour, in homage to one of my first fond memories of a robot. It starts with a single motor and runs as far as the curiosity carries it.
The goal: a self-balancing two-wheel robot that learns to stay upright with reinforcement learning. The motor work is the foundation. From there it's a second wheel, an IMU, a balance loop, and eventually a policy trained in simulation and dropped onto the real thing.
"Ar-tur didn't survive a month. I was too curious about how he worked."
Blau-bluer
Proj 02 · ActiveBlau-bluer is a Two Trees Bluer, a 3-in-1 machine that still prints. The 3D printer works; I just can't leave it stock. Over the years it has become a project in its own right: a new extruder gear, my own inductive auto-leveling probe, and then a swap-the-toolhead path into making circuit boards.
For PCB work the carriage carries either a 5W blue diode laser or a 775 motor with a drill bit. I bought both on a hunch and printed holders for them, then the laser sat unused for over a year while a humble paint-marker process kept making real boards. This project is the record of finally committing to the laser: spray the copper, burn the resist, etch, and drill.
"Pushing the ROI of a cheap 3D printer to the moon. 🚀"