Date: Fri, 22 Feb 2002 11:50:46 -0500

Author: Gerald Zani

Subject: Re: Velveteen electrostatic demo



I use as shallow a depth of oil/flock as possible. The shallower the
better. Only .125 inch or .250 inch depth of the oil/flock mixture. But
the dish itself is made a bit deeper. My dish is about .500 inch deep. I
do not fill it to the top, though. It is only half filled.

Use castor oil. It is thickest.

Get the flock from Constantine's
They call it Flock.

The electrodes cannot have sharp points or sharp edges or the charge will
bleed off. The tips and edges of your electrode configurations must be
rounded. I use four configurations; point and ring, dipole of opposite
charges, dipole of like charges, and parallel plates.


At 09:36 AM 2/22/2002 -0500, you wrote:
>I am looking for some info on the acrylic chamber for the velveteen, or
>fleece in oil demo. How high is the chamber, and how critical is it? I
>know that leakage has been a problem, and I am using a 1/8th inch "O" ring
>to prevent the problem. Are there any other tips I should know about
>before I start building these demos. How wide should the copper plates be?