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How To Make Solar Powered Car | 4 Best Science fair Project Ideas

Solar powered cars making

Hi, Scope for Clean energy in future is very high, Hence it’s our responsibility to teach younger generation about it’s importance.

Here we will have look into 4 amazing ways on How to make solar powered car at home, all the four designs of mini solar cars which are made here use similar materials but put up with different designs.

What are solar powered cars?

A device which relies on solar power for its working, commercial cars being produced today runs on IC Engines uses either petrol or diesel, Combustion of this releases harmful exhaust to environment, on the other hand solar energy is cleanest form of energy, so are Solar cars unless batteries come into picture!

Video link: Please scroll down bottom for video link

Features of our Homemade Mini Solar Powered Car

  • Uses small DC motor / dual shaft dc motor
  • Powered by small solar panel
  • Doesn’t require any battery
  • Ideal for Science Fair Projects
  • Very easy to make
  • Works on medium Sun

Let’s Begin with our first model small solar car

Materials required to make first version car

solar powered car materials
Materials for solar car
  • DVD Motor or toy dc motor
  • Rectangle piece of carboard
  • Wheels of your own choice ( I recycled from old DVD player for front wheels)
  • Thinner wheels are much preferred
  • Small solar panel (I used 5v 150Ma)
  • Steel shaft
  • Pieces of plastic tube for shaft supports
  • Cardboard pieces for proper alignment of Dc Motor gear with Shaft Gear

Steps to make Mini Solar Car

Mini solar car making
Mini solar car making
  1. Solder wires to DVD Motor if it’s not soldered by default
  2. Depending on size of gear mark and cut square hole on cardboard body
  3. Insert Gear into shaft mid part
  4. Add shaft supports on either sides as shown in pictures
  5. This will be rear wheel drive solar car
Solar car finishing
Solar car finishing
  1. Please follow images for clear visual understanding
  2. Using hot glue stick shaft supports to cardboard body
  3. Repeat same process for front part
  4. Attach wheels to all shaft end

Steps to place Motor in place

  • Using Pieces of cardboard adjust proper height in which gear from shaft links with DC Motor shaft
  • To Make sure it’s linked properly manually turn wheels meanwhile motor shaft should spin
  • Once the check is made
  • Connect solar panel terminals to dc motor
  • I will not be using any switch since this car works only with bright sunlight
  • Using Hot glue elevate solar panel as In images

Solar powered car is ready for action

How To use solar cars?

  1. Cover solar panel with your hand before taking outdoors!
  2. Go out on bright sun
  3. Place this car on ground
  4. Release your hand from solar panel
  5. Car glides like butter

That was all about making this version of mini solar powered car, Now lets head to other versions!

This version of solar car uses three wheels and here change is DC Motor is connected to wheels directly so the loss of power posed by using shaft is eliminated.

Lets get onto Building phase

small car making
small car making
  • I’am using triangle shaped cardboard for body
  • Tip of triangle is trimmed(upto 2cm) as it will be weak support DC Motor weight
  • Attach wheels to DC Motor shaft
  • Using hot glue couple it to triangle trimmed tip
  • Here I will be using switch to on and off car
  • Connect one end of solar panel directly to motor
  • Other end of solar panel to switch and from switch to motor
  • Couple everything together using hot glue
  • Homemade solar powered car is ready for use
  • This project works best with bright sunlight

Now you already know how to make solar powered car of two different types, Upcoming versions are a little bit different from these versions.

These solar powered cars are made from modified dc gear motor also called by names BO Motor,

Purpose of modifying Double shaft DC Gear Motor

  • Default motor consumes more power
  • Solar panel can’t power those motor
  • Hence it has to be replaced with DVD Motor
  • DVD Motor has good efficiency

Steps to Modify Toy DC Motor with DVD Motor in 5 easy steps

  1. Loosen screws from Dual shaft DC Gear motor
  2. Meanwhle by this time you can pull out motor with ease
  3. Remove tiny gear from motor shaft
  4. Attach that gear to our DVD Motor
  5. Insert this motor
  6. Tighten the screws

Materials to make high torque solar car

High torque solar car
High torque solar car Making
  1. Mini solar panel or small solar panel
  2. Dual shaft DC Gear Motor
  3. Hot glue sticks
  4. Wheels (big wheels are preferred)
  5. Screw driver

Easy Steps for making Solar Powered Car – High Toque

  1. Attach wheels to both sides of Dual Shaft DC Gear motor shaft and tight using Screw driver
  2. Stick small piece of glue stick to body of BO Motor
  3. Stick solar panel on other side of stick
  4. Connect solar panel to gear motor
  5. Wait for complete dry
  6. All set to test our project

Now let’s head on to building our next project

This version of solar car is made from previous version, Here the only difference is four wheels are used instead of two from previous version, please refer images.

steps for car making
steps for car making

Here only additional part is making front wheel part, To do front wheel part,

  • I used skewers as shaft alternatively steel shaft can be used
  • Roll paper slightly larger than size of skewer
  • Harden paper using super glue
  • Using 2 popsicle sticks connected side to side attach this wheels part
  • Connect solar panel to motor terminals
  • Using glue attach solar panel to body
  • Please refer above images for any clarifications
  • Our solar powered car made from dual shaft dc motor is ready to roll on off road

Features of Solar powered cars made above

First and second version of solar cars has high rpm hence work in very high speeds

Third and fourth version of solar car has low speed but have good torque

Video Link

Click here to watch video tutorial

That was all about making solar powered cars of four different versions, Let me know in comments which was your favorite and what version are you trying to do

Please show support by sharing this idea with your needy friends, Thank you


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