"Perhaps the savings generated by the eqipment have been over rated." A short bit of history for new comers. When 3D Systems was first starting (86 or 87, I am not sure exact year) Volvo gave them the data set for a new carburetor at the same time they sent the same data set to a carburetor manufacturer as the basis for a production run of 350,000 (100,000s but exact number might be a little different). 3D ran the data set overnight and sent the prototype to Volvo. The Volvo engineers looked at it and commented that it was a very nice model but that 3D had omitted one of the venturi ports.
Volvo was able to stop the production run before it started.
If you do not know why, e-mail me. I will tell you.