And while we're into software, has anyone tried the Cadre software for analyzing trusses? I've downloaded the demo, and received a demo fuselage-type structure from the sales guy, but haven't really gotten into it yet.

Apparently you can do a 3d wireframe model in some software, export/import as a DXF, then apply loads, material properties and then hit the go button to give you the loads in each frame member. But I haven't gotten this far yet.

Just curious if anyone uses it and finds it to be good.

Tom.

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Most machinists work in thou's. I work in angstroms. Hey, nobody's perfect.