create a full defined sketch.
Creating Fully Defined Sketches
To fully define a sketch:
- Edit a sketch.
- Click Fully Define Sketch (Dimensions/Relations toolbar) or Tools > Dimensions > Fully Define Sketch.
- Set the options for relations and dimensions in the Fully Define Sketch PropertyManager.
- Click .
Scott, I imported your step file. It produced and assembly with one part that looks like a board outline with mounting holes.
The imported goemetry consists of a dumb solid bodies not features and sketches. That's what you get from a step import.
Even so, you can still insert the assembly into a drawng and add dimensions to it.
If you want to modify the board, first you really need to talk to your Altium people about your process because they're the ones who are going to generate the gerber files that are used for manufacturing, so any changes you make-they have to be able to import them back into the ECAD environment.
In your part model, you can use FeatureWorks to convert the imported bodies into SolidWorks features that you can edit. FEatureworks is included with SolidWorks Professional. However, I recommend that you look into using IDF files with CircuitWorks (included with SolidWorks Premium) to import and update your models. It's designed around a workflow that makes it easy to pass data back and forth while maintaining the references between the PCB solid model and the assembly where it's placed. There are a couple of tutorials for circuitworks, so make sure you go through those before you commit to using the add-on.