Making Vise for cutting metal /circular saw a cutting metal DIY

I am in the process of building a circular saw a cutting metal. I divided the construction process into two parts. In the first video you will see the construction of a vice, in the second you will see the construction of circular saw cutting metal
The vice does not have to be designed for a metal cutting machine, but it can also become a universal workshop vice that allows you to quickly clamp your workpiece in it.