A dynamo, originally another name
for an electrical generator, i.e, a generator
that produces direct current with the use
of a commutator.
> Rack and pinion system:
A rack and pinion is a type of linear
actuator that comprises a pair of gears which
Convert rotational motion into linear motion.
> Rotary Converter Development:
Used to develop complex
multi-field single-rotor devices
with two or more commutators.
These were known as a
>> When a human steps on the device
due to his/her body weight the iron plate
moves downwards and drives the crank
shaft which further drives the
gear arrangements; which further drives
the another crank shaft.
>> This crank shaft then moves
the magnet in “to and fro” motion
into a coil.
Item name Item description Quantity of item
Iron sheet 30 cm x 60 cm x 0.25 cm 1 pc
Spring 1.5 cm dia, 25 cm long 4pcs
GI pipe 2 cm dia, 20 cm long 4pcs
MS angle 30 cm x 1.25 cm
Magnet(bar) 13 cm x 1 cm x 1 cm 20pcs
Copper coil 100 g 40pcs
Battery 12 v 7.2 Ah 1pc
Gear(big) 6“ dia 1pc
Gear(small) 1” dia 1pc
Axel 1’ long 2pcs
Thick plywood ½” thick, 1’x2’ 1pc
Volt meter 1pc
Base plywood ½” x 3” x 1.5’ 1pc
To store the electricity in battery.
It can be use at any time when it necessary.
Less number of parts required.
Electricity can used for many purposes.
In street light.
In LED light for specific purposes.
In air circulation system for room by the small fans.
For used in security alarm.
> > we can use this principal in the speed
breakers at high ways , where the vehicles
rush too much, thus increase input torque
and ultimate output of generator.
> > If we use this project at very busy
stairs , then we produce efficient
useful electrical energy for large purposes .