Hi everyone, and welcome to ByTechLab!
My name is Andrzej Laczewski — or just Andrew in English.
I’m an electronics engineer and multidisciplinary maker based in Poland. I built this site to document and share the technical projects I work on in my free time — from RF, through analog/digital circuits and embedded software, to mechanical creations and 3D-printed prototypes. Here you’ll find in-depth write-ups, design files, measurements, and lessons learned from real builds.
Feel free to explore the projects, leave comments, or drop me a message if you have questions or feedback!
I’m an electronics engineer and multidisciplinary maker based in Poland. I built this site to document and share the technical projects I work on in my free time — from RF, through analog/digital circuits and embedded software, to mechanical creations and 3D-printed prototypes. Here you’ll find in-depth write-ups, design files, measurements, and lessons learned from real builds.
Feel free to explore the projects, leave comments, or drop me a message if you have questions or feedback!
FDM 3D Printer – TREX-300
My new FDM 3D Printer (TREX-300) is based on the design of the Profabb Gate XL printer . The Gate LE is a very old design which was designed and manufactured a few years ago when the rep-rap printers were getting popular in my country.…
Mini Sumo Robot – Bullet XT
Mini Sumo Robot Bullet XT took part in several competitions but due to one mistake in mechanical design it was too easy to defeat it during fight on dohyo. But you know, I don’t give up so easily – I’m planning to try out new…
SMD Parts Organizer
I have thousands of different electronic components placed somewhere in the drawer in my LAB. Finding a particular part in boxes with mixed SMD tapes is a total nightmare, it is even worse when you need to find a particular capacitor (as you know they…