Look at the "Adding New Assembly Relationships" section of the Solid Edge .NET Programmer's Guide.
Make sure this is really how you want to build your assemblies. When you insert a part into the assembly via the API, the part is grounded. You can then easily use .PutTransform() to move the part to any location and orientation you want. If you build your parts with the origin in the right location, building assemblies becomes easy. Using grounded parts, your assembly will not "blow up" due to a small problem with a feature or change in dimension.
Keep in mind, if you do decide to use planes, you need to delete the ground relationship first.
Posted by: Terry Tyson Post date: 3/28/2013 3:06:50 PM