my interest

usability

How this mechanism help in any situations.

motor and gears

understanding how it works.

the more gears you apply on the motor the speed of which the gear spins is reduced but the torque speed is increased.

for project 10

is this mechanism the best way and most efficient way to go about the build .

pulleys

Worm and worm gear

idler gear.

the size of the gear determines the speed.

3v motor

the speed of the gear determines the strength or torque.

changes the direction of which a gear is spinning.

reverse pulley

regular pulley system

stepped pulley

very slow movement

High torque

inline

rotates through 360

ratio 120:1

cheap

ideal for wheels.

small

ideal for parts

idler pulley

for project 13

for project 12

for project 14

propellor

how fast does a propellor does a propellor have to spin to make an object that is 100g heavy have to spin.

how fast does the propellor have to spin to take off?

is there a formula or ratio?