About TrailMark3D


Hi, I'm Carlo. I'm a hiker, cyclist, runner and swimmer, and I love to travel and go on adventures.

I make TrailMark3D. It turns a GPX route, or any place you search for, into a 3D-printable terrain map: the real mountains, your trail, the water and the roads, each as its own part so a multi-color printer prints it in color.

I build the app, write the tutorials and the docs, and print the maps. The prints in the tutorials are real prints of maps made with TrailMark3D.

Carlo on a rocky mountain ridge, holding a chain and a trekking pole, with a camouflage hat and a blue backpack

What TrailMark3D does

  • Builds the terrain from elevation data and raises or carves your route into it.
  • Adds the sea, lakes, rivers, roads, landcover colors and, in cities, buildings.
  • Downloads an STL, or a 3MF with each part on its own filament for Bambu Studio, OrcaSlicer and PrusaSlicer.
  • Makes jigsaw puzzles, frames with your text, and multi-day trips.

Learn and get in touch

Start with the tutorials, read the blog, or see the plans. For anything else, write to me at carlo@trailmark3d.com.