Cubesat is a dream to the normal people. My own cubesat will in the space!! That's a dream, isn't it. But now I will share my ideas of making a real cubesat. After researching a long time, I have come in this position. Let's start. Keep strong your mind.
Step 1: Research
Here are some websites. First, read these.
Step 2: Planning
So, our cubesat will be 10 cm in length, width and height. We will use aluminium sheet for body. A solar panel for power and we will need a power bus.
A computer board is most important. There are many types of them. In next step, we will discuss about it.
Step 3: Main Board
There are many options,
Eagle flight computer
Own designed circuit.
The last option is not well. So, we will not follow that. Eagle flight computer is used in weather Balloon. But haven't the way to communicate with it over radio connection.
I think we can follow the picture's board shown.
Step 4: Others
Communication board is very important. Use this : BulletCAT11 - 600 Mbps CAT11 LTE Ethernet/Serial Gateway
I/O, ANALOG, CONTROL AND MORE -
For this part you should read this page
You will need a sd card with minimum space of 4gb.
Step 5: Add Power
You should use a cubesat kit bus.
You will need a suitable EPS that supply 5 volt to power bus.
Step 6: Make It
You should take help from cubesat website to make it.
Some org have service to send cubesat to space. Contact with them.
I will wait for your news of your cubesat.