These videos will help you understand how to set-up and use a milling machine.
New ATrump Milling Machines
Video #1 Setting Up the Endmill & Material
Video #2 Powering up and Homing out
Setting up the Manual Milling Machine
Using an Edgefinder on a Mill
Center Drilling, Drilling, & Countersinking on a Mill
Milling & Squaring up a part using a Mill
Milling a Slot in a Part
Milling an Angle on a Part