recreate an imported shape
Update: I managed to trace around a feature but its still blue and i dont understand why it wont turn black. Im assuming this has something to do with constraints?
I sketched a quick profile next to it and extruded it, so im a little lost as to what im doing wrong.
No my comment was to do everything in Meshmixer.
When you have surface bodies, they will need to be converted to a solid for slicers to work, your body has open gaps,
this is one side, but you will need to patch them all, and then stitched together.
Sending a PM.
I'd probably just print the current stl, cut the window(s) out, then glue the support in 
ETFrench
If they use Maya you should try to get a hold of the original quad mesh they create in Maya.
Maya is a Sub-D modeler and that means is natively works with quad mashes, which you can actually modify quite nicely in the T-Spline environment in Fusion 360.
@mann.frazer if you want to learn how to model something like this and not always want to rely on trios triangulated mesh garbage then that can actually be done fairly well in Fusion 360 if you keep your ecxpectations realistic.
Here's what I have so far.
@mann.frazer Here is how the end result of my efforts look like. Hit is just to show what can be done. I've attached the model. Don't take this as the cleanest way to create this. It's quite a hack in places, but it is just to give you a starting point of how re-creating such a model can be approached.
@lichtzeichenanlage I created a Plane3 that intersects the mesh where I wanted that mesh section.
Then you can use "Sektch->Mesh->Mesh section".
I used that sketch only as a visual guideline to manually match it with a spline in Sketch22. This was needed as the initial loft did not approximate the canopy shape closely enough.
@mann.frazer this is not something that I'd recommend for a beginner in Fusion 360. There are a number of obstacles that you can only move past if you know Fusion 360 fairly well.
For example I wanted to put a small fillet at the lower lip. The curvature of that edge is so bad that Fusion's fillet tool does not allow it. I can use a workaround, but chose not to.
The general idea is that I used sketches to manually match base geometry of the mesh. Then I created lofts from those profiles and used either other surfaces, or sketch elements to cut these lofts. the way I did that cutting is lazy and could have been done better.
The reason this is hard to follow is that most people new to surface modeling and modeling in general is not the tools, but the ability to break a complex model don into its geometric base shapes. Then you need to be able to relate those base shapes to the tools available a given software and figure out how to create these base shapes.
You use way too many spline points. For most of these splines you probably need a spline with 2 end points and one additional control point. The rest can be achieved by working the tangent handles.
Also, make sure that for the continuous looking curves you use a single spline, not several pieced together splines or line segments.
Still, then this will likely no be a single loft, but a number of lofts in the patch workspace, which you will need to stitch together or thicken
