Here are a few handy Fusion 360 links to get started.
How to register for a start-up, personal, or student license for Fusion 360
Note: there are now a three free licence types for Fusion 360. When I renewed this year, I fell into the free personal licence type, which is fine for me, since most of what I do is for myself or pro bono to friends and and family.
Download link for the latest MaslowCNC post processor
Although never officially released, as of the year 2020 Autodesk continues to update the Post Processor for the Maslow.
YouTube video showing how to lay parts flat for CAM.
There is another very helpful tutorial from Lars Christensen for the newer nester addin:
CAM Optimization discussions