Here is an update on my test imports using a fairly complex STP file.
My thanks for the artist of the original model, whose work can be found here:
File licensed under Creative Commons: http://creativecommons.org/licenses/by/2.5/
For importing into MODO, The Foundry has an addon called Power Translators.
The Power Translators for CAD (Interactive Geometry Translator Plug-ins for MODO) is an addon to MODO. (Cost is around $1799 normally, but during today’s MODO Flash Sale, it’s $1,079.40.) http://www.thefoundry.co.uk/products/modo/plugins/power-translators/
Did three imports. All default settings on Power Translator, only changed the Output type.
1st Import: Mesh
2nd Import: CAD Item
3rd Import: Static Mesh
import file name: StpFromCAXIF_Tr7_pm5-hc-214_STP
import file type: STP
Mesh Quality: Fine (all 3 imports)
Next I’ll test bringing the same STP file into other packages.