Hello and welcome to my website lars-projects.com! My name is Lars and on here you will occasionally find well-documented instructions for DIY projects involving 3D printing, programming and electronics aswell as random blog posts about anything else that comes to mind. Furthermore you will also find links to all the other projects and websites that I am involved in or that i support.

Current blog posts:

Fernwanderweg GR20 – Der umfassende Wander Guide für 2024

Der legendäre GR20, laut diversen Quellen der angeblich härteste Fernwanderweg Europas. Doch was ist wirklich dran? Welche Ausrüstung benötigt man? Wie ist die Lage auf den Hütten? Dies sind alles Fragen, die man vor einem eigenen Antritt zu diesem zweifelsohne großartigen Abenteuer klären muss. Erschwerend kommt hinzu das nahezu alle Informationen hierzu, sowohl im Internet als auch in renommierten Wanderführern, entweder veraltet oder gar irreführend ist. Basierend auf meinen eigenen Erfahrungen daher hier eine genaue Beschreibung, was einen auf dem schwierigen Nord Teil des GR20 2024 erwartet und wie man diesen mit maximalem Spaß bewältigt. [weiter lesen]

RGB lithophane lamp

easy to do
1,5 hours + 3D printing time

  • RGB lamp based on a customizable 3D printed lithophane with your own picture on it
  • powered by an ESP-32 running WLED and WS2812b LEDs
  • great beginner electronics project

Thermoelectric Cloud Chamber

  • Cloud Chamber for observing radioactive rays
  • cooled by a two stage thermoelectric system with more than 400W
  • Generates a temperature difference of over 50°C (-28°C <> 25°C)
  • controlled by Arduino nano, 3 Temperature sensors, two relays and a custom code for maintaining the temperature difference and preventing thermal runaways


GLPC.space (originally games.lars-projects.com) is all about computer games and the software/hardware technology behind them. This includes:

  • Tutorials and Tips
  • Game reviews
  • current news
  • deep dives into history
  • detailed explanations of technology behind it

Weather Station

  • a WiFi weather station based on an ESP-32 and easily accessible Arduino sensors
  • database connection > Grafana support

High Power WLED Lantern

  • 10W RGB LED camping lantern
  • >more power than any commercial one in this size
  • powered by single 18650 LIION cell
  • WLED connectivity



KwikjetX is a high performance RC jetboat that can be easily 3d printed. With a length of 590mm and a 40mm jetpump this boat shoots almost silent and with instant acceleration accross the water.

  • ball steering ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​for highest prescision & reliability
  • reversing bucket
  • variable hull thickness
  • heated inserts​​
  • high durability
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