RE: [CAD_CAM_EDM_DRO] 3D graphics or CAD software

I use Rhino 3D.
My main PC is a custom one built in the UK, overclocked at 4GHz, 16 GB,
Win7 64 bit, with Nvidia card for 2 x 2600x1900 resolution on two HP 32
inch monitors.

BUT..
Many of my models are 300-900 MB in size.

Rhino will run fine in XP with 1-2 GB, and do 3D work just fine.

A small model is a screw mount.
About 1 MB on size.

A model for me, might have 200-400 3D assemblies in it. Some might be
near this 1 MB each.

Many will be simplified - for example I made a 3D ballscrew semi
accurately (I did not do the special arch of the ballscrew, but
approximated it as a circle).
A simplified ballscrew is about 50MB iirc.

Import 3 ballscrews, with mounts, and build the structure, sheetmetal,
and supports.
Thats a gigabyte model.
Its about the same size in solidworks, as used industrially.

So - what do you do ?

I build stuff, and use the 3D tools to make stuff better.
Its a lot better to make sure stuff works on the screen, than in metal.

Rhino is one of the fastest, lightest and easiest solutions out there.
Biggest drawback is lack of associations (there is a plugin - gotta try
that) in geometry.

There is no right answer.
Rhino is about 100x better than any 2D (auto ;( )cad, for one thing.
I´m experienced in 3D with almost 30 years experienece.
(Started w. CATIA in 1986 or so on IBM dedicated hw).
Rhino has a free 3D cam. Freemill.

I know that inventor is good, but expensive.
Soliworks is too expensive.

And it depends on if you want cam, 4th axis, plasma (and if with THC), etc.
If you wanna link to excel (really should !) and so on..

I believe alibre might be good for something. No personal experience.

> What do you other list members use for design work and "how much
> computer" would I need?