How to overdraw a render

Hi I’ve very recently started using Rhino and Flamingo at my new job however I am struggling when it comes to rendering. I’ve been given examples of previous work that my work needs to look like but I can’t seem to get it to look the same.

Overdrawn%20line%20renders

I’ve attached images of what I need it to look like, as you can see the renders have these extended lines at the ends and I was wondering if anyone knew how to achieve this.