STEM LAB Counter

The «Counter» model registers repetitive actions.The model has three cylinder gears with numbers from 0 to 9 and a Geneva Drive. This combination allows you to see an interesting mechanical feature: when the reciprocating motion of the click-button using the Geneva Drive mechanism turns into the rotary motion of the cylinder gears with numbers.The Counter provides two options of data registering: click-button on the roof of its body, and a turn handle on its side. Pressing the click-button or turning the handle makes the Counter shift by one place. When the count passes 9, the Geneva Drive catches the next register cylinder and adds it to the count. Altogether, the three-digit display of the Counter can register values from 1 to 999. You can open the front panel of the counter and reset it manually. Try counting steps on your way home. Or how many people you meet on a stroll through the park. How about, the number of blue cars passing by your house during one hour? Count stairs at home, at school or at a friend’s house.

 

Usage:

These days, counters are used to count the number of passengers, visitors of different

events, cars passing through certain check point, sets and scores in sport,

items on a production line, etc.

o Assemble it and discover the principle of working of the Three-digit Clicker-Counter.

o Experiment: the model comes with a Pocket Model’s Study Guide with a creation story and mechanism design as well as engaging and interesting tasks.

The mechanism of the Counter is composed of:

• Click-button to register values
• Cylinder gears with numbers
• Geneva Drive
• A Turn handle to register values

Self-assembly from the parts, pulled out from wooden boards, according to easy-to-follow manual instruction. No glue or cutting needed

Model Size: 5.3 x 2.6 x 4.8 in
Package size: 8.1 x 7.4 x 2.5 in
Number of parts: 157
Level: Easy
Assembly Time: About 2 hours
Recommended Age: 8+