Sorry about the delay....

Quote - Is this yet another Matmatic script that you have written?

Yep, though it gave me a lot more work than I thought it would.
Even so, the "base" of the screw is a left-over end of the cylinder - looked cute so I left it there.

Quote - Also, "How" did you get the "Rope" on the far right in your first post?

It's the same three-layered displacment, but used on a longer cylinder.

Cheers,

Rô
 

My favourite question is "Why?", my second favourite is "Why not?"