I am literally brand new to the laser engraving hobby/arena and I have very little knowledge on how to set it up to engrave on different materials. While I have been doing a ton of research, I have one inescapable question:
If I am engraving on a 5x7 piece of wood, how do I tell the laser that it is a 5x7? If this does not make sense, let me know and I will try to explain it further.
It was already mentioned but using the tool layers can be really helpful. If you create a rectangle the size of your material and put it on the tool layer it will help you visualize how things are going to be laid out.
Of course you will still need to run framing to ensure things are properly aligned before sending the job.