On Wed, 24 Oct 2012 11:33:47 +0100, "David WE Roberts"
wrote:

http://www.pcadvisor.co.uk/how-to/ta...w-make-stylus/


So what is a firm conductive material which can hold a point but not scratch
glass?


I've made my own from conductive foam from Maplin. It's firmer than
rubber, and glides more easily. However, from much experimenting it
needs a minimum area in contact with the screen to work. The smallest
I've managed is about 5x5 mm.

You have to rely on the software to interpret the broad contact area
and draw a thin line at the centre. Not much good for accurate work.
I don't think theres a way round it with current screens.