Stage Conveyor - fischertechnik PROFI Dynamic XL Begleitheft

GB+USA
Obstacle - quarter pipe
Tip:
Use more than ten balls for this
purpose.

Stage Conveyor

Tip:
If the balls do not roll properly to the
lowest step on the stage conveyor,
you can move the building blocks
below the flex-rail to ensure proper
transfer in the stage conveyor.
P D
r o f i y n a m i c
For skate boarders or snow boarders a quarter pipe is a construction
extending over one-quarter of an arc for performing a variety of
tricks. In your Dynamic XL construction set, your balls roll from the
flex-rails into a quarter pipe consisting of construction plates. It is
inclined slightly toward the front, so that your balls roll up, and are
simultaneously guided to the next rail.
Task:
Red construction plates, located on both sides at the end of the last flex-rail
in front of the stair step conveyor, extend over the flex-rails. Why do you think
these two construction plates are necessary?
If more than ten balls are used, the pressure on the front balls is so
high, that they lift up. Without the two construction plates the balls
would probably fall out of the stair step conveyor.
■ Now we will take a little trip to a mine where precisely this conveying technique was used in the past
to overcome differences in elevation. This technique is called a "man engine". It was first used in mines in
the Harz region of Germany. Here two poles led down into the mine shaft. Steps were fastened to these
to poles, so that miners could stand on them. The two poles
were moved up and down alternately with the aid of a drive
mechanism. In the past the entire construction was generally
driven by a water wheel. As soon as the steps on the two poles
were at the same level, it was necessary for the miner to step
over to the other pole. This allowed him to travel up or down
the shaft.
The stage conveyor in your fischertechnik PROFI Dynamic XL
construction set operates in practically the same manner as the
"man engine". The balls roll from one side to the other to the
lowest step on the conveyor. The motor and gearbox move the
right and left lift rods or poles up and down alternately.
16
X L a B
c t i v i t y o o k L e t