Here some more pictures.
Changing the position in the effector master sketch, moves the the carriages form the three towers. The rods follows the carriage and the effector.
This construction constraints are use for the calculation for the carraige z-position
If anyone ist interessted, the files are to big, so you can download here:
https://drive.google.com/open?id=1rU9_U ... IZO_MdTYrQ
One file contains a reduced version. So the calc will be done a little faster