Has anyone dealt with 3D printing patented designs?

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Illustrative scenario prepared by my practice.
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Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

3D printing patented designs. I've been dealing with this for about 7 weeks now and the situation isn't improving.

This involves original creative work over the past 34 months. I do not have documentation proving my ownership and timeline.

Do I have a strong case? What should my next steps be?

Illustrative response

Following this thread — Same boat here, please update us on what happens lol!