thanks it works however it is very limited in resolution.
most slicers make 1000 to 2000 slices but slicer for fusion limits to 100 maybe as high as 150.
i found a way around that limitation by saving bigger slices say 1 inch thick then then making 1 millimeter slices of each big slice.
that is like segmenting a 100 meg zip file into 10 segments of 10 meg then segmenting each segment into 10 segments of 1 meg.
the only downside i can see immediately is that some of the parts are small in the assembly viewer that it will not highlight the small pieces. and the part numbers are being obscured by the outlines on the small pieces and the sequence is being scattered such that i have to look at all of the files to find the next one.
a more crude way i found that may work is to use slic3r witch is part of the repetier package i can using applescript automate advancing 1 slice and snapping a screen shot and repeat but i have honeycomb grid and other infill structures around obscuring some of the small details near the edges like the nostrils holes on the nose and ears and eyes gaps.