Marble Rush Elevator

**Endless Fun with the Marble Rush Elevator**

I've designed and build this Marble Rush Elevator for my two daughters who really love to play with the V-Tech Marble Rush play sets. This way they have a new and endless challange to build multiple tracks that start at the top of the elevator and end in one of the 8 openings in the bottom. The Elevator is fully modulair and easy to build and extend for young children.

The design is based on the Archimedes Screw and made to fit perfectly with the existing pieces of the V-Tech Marble Rush building blocks and track pieces.

The use of this elevator is very safe, I've designed and implemented a safety feature (slip-coupling) to prevent the small fingers to get hurt due to the torque limitting transmition from the motor to the archimedes screw.

All pieces are easily connected with a press fit connection. It is best to build sections of the archimedes screw first and then add the outer shaft pieces next.

**Because the amount of wor