Can someone point me to a good source for patterns for cardboard stacked projects.

Can someone point me to a good source for patterns for cardboard stacked projects. I have found a few, but struggle with the fact that some are meant for larger lasers and thus the scale does not match up if I reduce it to my 12" x 8" cutting area and use 1/8 cardboard. The proportions are off.

I case you.want to make your own, search for slicer for fusion 360

Break up the pattern into smaller areas. Cut out just the items that fits your area instead of the whole pattern.

I have explored slicer but not enough for it to be useful yet. Halfnormal, what if I do not know the pattern was meant to be 1/8 thick?

A slicer is not what need. You need a program that can read the file ie cad or graphics program. Unfortunately if the pattern is not made for 1/8 inch you will have to manually modify it. See the post about the dinosaur.