Tested comliant surface, worked pretty good.  It didn’t have ‘zero-force’ sensitivity, but it detected pretty good.  Put Rosco Grey on tracing paper. So, Current setup is:

——————————————- Rosco Grey (Just to protect tracing paper)

——————————————- Tracing Paper with silicone layer applied on bottom

——————————————- Acrylic

Blobs get lost sometimes, assume Rosco Grey is not smooth enough or compliant surface is not sensitive enough.  Again, Rosco Grey is a very good projection surface, but it’s not really useful in FTIR.  I’m not sure why Jeff Han mentioned this material in his paper and how he used it.

It is pretty big surface it’s

36"x58" inches screen...using PS3EYE

My blog for the logs...

Try to apply the silicone layer directly on the rosco and remove the vellum. That should make it better, because IMHO you are using too many layers at the moment.
Greg

Gregi - 30 June 2009 07:25 AM

Try to apply the silicone layer directly on the rosco and remove the vellum. That should make it better, because IMHO you are using too many layers at the moment.
Greg

Did you try with Rosco?  It didn’t work good as tracing paper.  I’ve tried different ratio and different combination of mixing silicone, but no luck.  Did you use Tinkerman’s method?