error exporting step fusion 360

[Anonymous]

 This is my first time using Fusion 360 so bare with me. 

So im trying to export my OBJ files that i made in Maya to step files. 

I uploaded them into Fusion 360 like i learned how to do, and everything seems to be working great, and then i exported the files as step files. 

But when they are exported and I send them to my boss, it is showing the files as only 4KB, which is really small. And when they try to view the files in Autodesk Viewer or any other place it is getting an error that says the file is empty. Why would that be? 

Am i missing a step in the exporting process? Everything is working on my end, i see the files and everything is working in Maya and Fusion 360, so why would the files be empty after i export them? 

Can anyone help me? Ive never had to deal with Fusion 360 before or step files, ive only ever dealt with Maya, zbrush, and Meshlab before. 

[jodom4 · Accepted solution]

Hey sarahgaylene,

If I understand your process, the problem is that an OBJ is a mesh file and a STEP is a solid file- these are completely different kinds of geometry.

One way to do that is to get from a Maya exported OBJ, you'll first need to convert that to a quad OBJ (these are triangulated by default), then bring that into Fusion, convert it to a solid body, then export that as a STEP file. 

Another way is to convert the mesh you've already got in Fusion into Brep geometery. 

Here's a video demonstrating both methods: https://forums.autodesk.com/t5/fusion-360-design-validate/convert-obj-mesh-to-new-body/td-p/6903947

Nice modeling, by the way! I hope this helps.