Fischertechnik Marble run expansion. Some parts are obtained via 3D printing.
There are 2 additional modules:
- The transport chain.
- The 4 way selector.
The 4-way selector is controlled by a nema17 steppermotor. The TXT controller from Fischertechnik is used for the program execution. The stepper motor is controlled via the I2C.
A number of flex strips are also 3D printed as an expansion. See my previous Thingfiles.
Polymaker polymax PLA