STLGen

All generators › Games and toys

Marble run piece maker

Straight and curved track, joiners and posts.

Drag to turn, scroll or pinch to zoom. Grid squares are 10 mm.
Building the model…
Saves an STL file in millimetres, ready for your slicer.

Your download is starting

should appear in your downloads folder in a moment. Click here if it does not start.

Enjoying STLGen? Buy me a coffee and help keep it free.

Buy me a coffee

About the marble run piece maker

Build your own marble run: straight and curved track pieces, joiner sleeves and support posts of any height, all for the marble size you have.

  • Posts of different heights give the track its slope.
  • Loosen the joiner fit if the track is hard to push in.
  • A 16 mm glass marble is the usual size.

Everything runs in your browser: nothing is uploaded and there is no sign-up.

More generators