My title should read 'CAD file export' not 'MEMS file export'.

thanks

John

Hi John,

I have updated the name if the forum thread for you!

With respect to your question: The (0,0) location in your STEP file will match the global coordinate origin of the Non-Sequential system. A quick way to see that location in OpticStudio is to place a Source Ray at location (0,0,0) with Ref Object = 0. This means that the source's axis will be aligned perfectly with the global reference which will then indicate the global (0,0) location. 

Here is an example of what I mean. In this file, I have two Rectangular Volume Objects and one Source Ray. Objects 1 and 2 are currently aligned with the global origin:

When I export these objects as a STEP file, the global coordinates in SolidWorks will match the location of the Source Ray:

Even when I export Object 4 on its own, the global coordinates remain the same:

Let me know if you have any other questions about this!

Best,

Allie

Oh one more quick note:

In my OpticStudio file, you will see that the second Rectangular Volume is +2 in the Y-direction from the origin, yet in the SolidWorks file, it looks like it is +1. That is because the local axis for the Rectangular Volume is located in the center of the left face:

So the positions in OpticStudio are always updating the location of the object's local axis with respect to the Ref Object. 

Allie

Thanks!  I will try this.

Thanks again

John