Hi! I hope you're doing well.
I've been building robot designs that feature many instances of the same parts. When I export the complete assembly as a 3MF file I noticed something odd.
3MF export *could* export each instance once and then use the <build> instructions to instance them with correct transform matrixes.
At present 3MF export from Fusion360 currently exports each instance as a separate mesh with identity transform matrix. This takes longer to load, uses more disk space, and is more costly to autodesk servers when exports happen.
I'm new to the 3MF format. Is there a reason I can't see why this is being done? The Fusion file already has the instance information and the transforms. It looks like the current method throws away useful data to produce a more expensive file.
Attached is an example of my instances in action. Total triangle count is 4M+ on LOW settings. Could be ~1/6th as much if the major components were instanced.
