We all know that mining companies release the products once they got all the profit and the customers wont get their

We can get chips here - https://zeusminer.com/product-category/zeuschips/

and Schematics & PCB here - https://mega.co.nz/#!UwY0hbrK!xwLhgHgP0YgjfO8hxSxmLvjS4k_2lXLIlfHSK8AKnpw

So I assume if you are a electronics engineer its easy to make miners.

Or am i wrong ?