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After speaking with some members and considering the specifics of this project, I decided to go ahead and build the laser loosely based off this website: Build a Burning Red Laser from an Old PC | Hack N Mod. I plan on having both the laser from a DVD Burner and the IR diode that I mentioned...

I think the time frame was just to make a point, and automation was just an example, this setup will be used in a project aimed at middle/high school science classrooms. This will not be used for carving a sculpture from a single block of foam, but rather thin sheets of foam that will be cut...

That is exactly what I am thinking - a cool science fair project for middle school or high school kids. Considering the thickness (roughly 7-10 pieces of computer paper) and the low density of the foam, would I really need a 1W laser? Assuming the foam is traced with black ink along the shape...

Not a single person can help me out with this?

Full Disclosure: I am most definitely a newbie at all of this. I am trying to assemble a laser that is capable of rapidly cutting through styrofoam, about the thickness of a disposable styrofoam dinner plate. The foam will be dark blue/black in the areas that will be cut. I was able to order...