How do you create or collect items to make electronic board/device?

1 We can creat electronics componenet by using basic technology of metalurgy for separation of metals but that is very difficult and will consume lot of time.

2 We collect the component according to the circuit design rquirements

By Following the circuit design

Well I can have these things from the market, and besides this, I own my workshop, so I have a lot of junk to play with :). Firstly u ll need to make a list of the parts nreded. Then get these parts from the market nd still if these parts are unavailable, youcan get from the iinternet online shops. Today a lot of chineese manufacturers are providing the parts which are unavailable in the market

As i used to do :1.Start with simple skitch of your design circiut board on paper or using AVR software.

2.Ilustrate the number of  components needed after reaching the final perfect design using excel sheet.

3.Calculate the time and budget needed from excel sheet.(optional).

4.Finally you can use these prevoius info in enhancing your project next time you design.

using either sim circiut or any other tool.