Unable to combine bodies for export as STL

[Anonymous]

I have multiple bodies I want to combine, however some of them have this weird icon not the white body. how would I go about combining them? I have an STL i need to edit (I know, not preferable). So I converted the mesh into bodies, then now I need to recombine the bodies into one to export as a single STL..

[JDMather]

Those are Surface Bodies rather than Solid Bodies.

Can you File>Export your *.f3d file to your local HDD and then attach it here?

[Anonymous]

Thank you. 

[Anonymous]

Just patch the letters on the back side of robot (they are holes right now). Then stitch all together. And remove floating body. That's it.

[Anonymous]

Hey, thanks for that! Body 2 (antenna) is still surface for some reason. Any chance you know? Also, what do you mean remove floating body?

[Anonymous]

Apply Stitch operation on the Antenna and you will get solid body without any issue. And Body8 contains only 1 face floating in the air (looks like it's from letters you removed). Just delete it.