VEX GO Lessons

Mechanisms

Build the gear train out of VEX GO parts as shown.
Answer these questions:
- What is the relationship of the input shaft compared to the output shaft
- Is the speed increased, decreased, or constant?
- What is the gear ratio?
- Is the direction of rotation the same?

Build the gear train out of VEX GO parts as shown.
Answer these questions:
- What is the relationship of the input shaft compared to the output shaft
- If the blue gear is the input, is the speed increased, decreased, or constant?
- If the green gear is the input, is the speed increased, decreased, or constant?
- What is the gear ratio?

Build the gear train out of VEX GO parts as shown.
Answer these questions:
- What is the relationship of the input shaft compared to the output shaft
- Is the speed increased, decreased, or constant?
- What is the gear ratio?
- What does the idler gear change?

Build the bevel gear assembly out of VEX GO parts as shown above.
Answer these questions:
- What is the angle of the input shaft compared to the output shaft?
- Is speed increased, decreased, or constant?
- Is torque increased, decreased, or constant?
- What is the gear ratio?
- Is the flow of power reversible? (Can you make the input shaft turn by turning the output shaft?)
List an example where this mechanism might be used. A helpful search term is bevel gear.

Build the belt drive out of VEX GO parts as shown.
Answer these questions:
- What is the relationship of the input shaft compared to the output shaft
- Is the speed increased, decreased, or constant?
- What is the gear ratio?
- Is the direction of rotation the same?
List one benefit of using a belt instead of meshing gears.

Build the belt drive out of VEX GO parts as shown.
Answer these questions:
- If the orange pulley is the input, is the speed increased, decreased, or constant?
- If the green pulley is the input, is the speed increased, decreased, or constant?
- What is the gear ratio?

Build the belt drive out of VEX GO parts as shown.
Answer these questions:
- Is the speed increased, decreased, or constant?
- What does the crossed belt change?

Build the crank and slider out of VEX GO parts as shown.
Label the crank and slide
Answer these questions:
- The input to this system is what type of motion?
  (rotary, reciprocating, or linear)
- The output of this system is what type of motion?
- How far does the slider move with each revolution of the crank?
- If the diameter of the crank gear were increased, would the slider move a shorter or longer distance?
- Is the flow of power reversible? (i.e., can you make the crank gear continuously rotate by pushing the slider?)
List an example of where this mechanism might be used. A helpful search term is crank and slider.

Build the cam and follower out of VEX GO parts as shown.
Label the cam and follower
Answer these questions:
- What is the type of input movement? (rotary, reciprocating, or linear)
- What is the type of output movement?
- How many times does the follower move up and down with one revolution of the crank?
- Is the flow of power reversible, i.e., can you make the cam turn by pushing the follower?
- Is the direction of travel reversible, i.e., does the mechanism still work if the crank is turned in the opposite direction?
List an example where this mechanism might be used. A helpful search term is camshaft.

Build the cam and follower out of VEX GO parts as shown.
Label the cam and follower
Answer these questions:
- What is the type of input movement?
- What is the type of output movement?
- Describe which part is the rack gear and which is the pinion gear.
- If the diameter of the pinion gear were increased, would the rack move a shorter or longer distance with one revolution of the axle?
- Is the flow of power reversible, i.e., can you make the input shaft turn by sliding the rack gear?
- Is the direction of travel reversible, i.e., does the mechanism still work if the input shaft is turned in the opposite direction?
List an example where this mechanism might be used. A helpful search term is "rack and pinion".

Build the scissor lift out of VEX GO parts as shown.
Answer these questions:
- What is the type of input movement?
- What is the type of output movement?
- Describe one benefit of this mechanism.
- Is the flow of power reversible, i.e., can you make the input shaft turn by sliding the output?
- Is the direction of travel reversible, i.e., does the mechanism still work if the input shaft is turned in the opposite direction?
List an example where this mechanism might be used. A helpful search term is "scissor lift".

Build the wiper mechanism out of VEX GO parts as shown.
Answer these questions:
- What is the type of input movement?
- What is the type of output movement?
- Is the flow of power reversible, i.e., can you make the input shaft turn continuously by pushing and pulling the wiper?
- Is the direction of travel reversible, i.e., does the mechanism still work if the input shaft is turned in the opposite direction?

Report abuse