Ron, thanks for a high estimation of my work!
For visualization I use Keyshot standalone render - with this program you can import models in the .3DM format
Ed, Thank you for the appreciation of my work!
I do use the complete package of real blueprints.
With great difficulty he found. But - found! ))
In addition, I also use a lot of photos of the real locomotive, taken from different angles.
Thus, the lower part of the locomotive is almost complete, remained a dozen parts.
He gathered all modeled in a single file.
The file weighs 288 megabytes and is already beginning to slow down MOI3D.
Although Keyshot this big file "grinds" without any problems...