Hello,
we intend to use Ultimaker 3 on Windows 10 and feeded directly by the CAD system Siemens NX (Version 11).
In Siemens documentation (link) we found as prerequisite "A 3D printer that supports Microsoft Windows 3D print drivers".
On your web-site only the connection via cura is described.
Here's what we found on docs.microsoft.com (link)
Question: Does your firmware provided a Compatible ID for Windows OS?