[cad-linux] freeware/inexpensive CAD for IRIX

Has anybody come across a free/inexpensive CAD program for IRIX?  I 
just bought an SGI Octane and am something of a CAD hobbyist, so I'd 
like to use this beast for what it's intended.  I don't need full 
fledged rendering in 3D; I just need 2D projection ability, perhaps 3D 
wireframe ability.  The usual; snaps, magnets, etc.

Any ideas?

--David


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