Watch this video and more on WelderSkills
This video shows the stairs being built and installed with some dsfc arc shots sprinkled in.
Sam removes a bearing with a gouging tip and more in this real world repair video
This is how I hurt myself with a magnetic drill and what I could have done to prevent it. This video contains a simulation of equipment malfunction, so definitely don't try this one at home.
Magnesium can be dangerous if proper safety isn't observed. Johannes covers the 'dos and don'ts' of magnesium and shares his experience working with the material.