Imported step model not a solid when i convert to an stl file

[Inventortryfree]

Imported step model not a solid when I convert to an stl file for 3D printing, it is a model of gearbox and electric motor, please help to convert to a solid, file attached

[JDMather]

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@Inventortryfree wrote:

file attached

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An assembly must include parts.

In Inventor parts are in the form of *.ipt files.

Can you Attach the original STEP file here?

[Inventortryfree]

Thank you for the support, please see original step file attached

[blair · Accepted solution]

If I had more time to spend fixing all the duplicate items I may be able to get you the complete motor. You have the cap end and the flange mounting end along with the junction box. 

It should get you by until you can find a motor that is modeled better.

[Frederick_Law · Accepted solution]

See if your 3D print slicer could open STEP file.