I think you need to consult with an AutoCAD newsgroup instead of r.r-c.
This is a software issue, and this group is more likely to help you with
--Dave Althoff, Jr.
/-\ _ *** Machines have no friends. Ride accordingly. ***
/XXX\ /X\ /X\_ _ /X\__ _ _ _____
/XXXXX\ /XXX\ /XXXX\_ /X\ /XXXXX\ /X\ /X\ /XXXXX
I chose to avoid the complicated design of moulded seats and go with
something that is far easier to fabricate, is still attractive/agressive
looking, and is fairly comfortable.
But for this particular application I don't think that FEA
is needed. :-)