From: Haohao Fu (
Date: Fri Dec 29 2017 - 21:36:33 CST

Hi, Suresh,

The simplest way to generate the structure of a nanotube is to use the
"Nanotube builder" in VMD.
After a generation, just type:

set tube [atomselect top all]
$tube writepsf tube.psf
$tube writepdb tube.pdb

Then you should see the files of your nanotube system.


2017-12-30 9:57 GMT+08:00 Suresh Ghimire <>:

> Dear NAMD user,
> While working with carbon nanotube, can we use charm topology files or how
> can we develop the topology file for simulation of water and carbon
> nanotube?
> Sincerely
> Suresh

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