Some parts to integrate fischertechnik construction toy and Gravitrax marble run.
The base plates are best printed upside down, as supplied.
The ft-to-Gravitrax parts (Hoehenstein_auf_ft.stl and Bahnstein_auf_ft.stl) should be rotated into normal position.
Use the "Verbinder" for the ..._auf_ft parts to connect with the Gravitrax bricks.
All parts can be printed without support. About 20% infill.
FreeCAD data included - feel free to modify.
You also might have a look at the 155mm long flex rail, it fits good between ft and Gravitrax parts:
Added a new brick 2018-10-28: Straight Gravitrax track with ft groves.
Updated on 2018/10/24:
Hoehenstein_auf_ft: Added a little ramp inside the brick to ensure marbles will actually roll out.
Bahnstein_auf_ft: Slight adaptation of the ft connection