Simple Framed Tube Structure

Hey, I am new to Grasshopper. I am currently trying to create a simple framed tube structure, but having a difficulty to plot the other two sides of the tube. Attached below is my Grasshopper file, it would be great if someone could help me out, thanks!
Simple Framed Tube (13.1 KB)

Like this?

Simple Framed Tube (15.7 KB)

1 Like

Yes, thank you so much! :pray: