Welcome to the group LauraBeth, we are a pretty friendly bunch here and more than willing to help with anything you need
I did a search on Steno Machines and could only find the one you describe, at first I thought you were referring to a woodwork machine, this clears things up
As for acrylic, I have not cut much of it. I have stack cut it before but was only two layers. The acrylic we get here in Australia has a layer of paper on it, so when I stacked them and covered in clear packing tape I didnt get any fusing together. Apparently the packing tape help lubricate the blade a bit when cutting