This is a horizontal bandsaw. It's usually used to cut stock to rough length, but with a couple of tricks and a bit of finesse you can use it to cut accurately (within a few thousands) again and again.
Step 1: Measure and Mark the Workpiece
First, measure and mark your workpiece. Using a little Dykem Blue makes the scribed line a lot easier to see, but isn't absolutely necessary. Use whatever tool is appropriate to mark the desired cut line. Here, I use a digital height gauge and make a mark at one inch from the end.