Hi mat, is it possible to post the 3DM model file?

Currently MoI only has a method in place to combine co-planar plane surfaces together inside booleans, not just any arbitrary surfaces next to each other. But there are techniques like duplicating your edge curves and removing their segmentation by rebuilding them and then sweeping or using network on those longer single segment curves. That's probably what I would have tested if I was able to load the file over here.

- Michael