Scratch holograms

glajciorz · Post by **glajciorz** » Mon Mar 05, 2007 3:49 pm

Tom B. wrote:So here the scratches/grooves would be surface relief features created because the hardened gelatin swells less? Maybe it could be aluminized or plated somehow as is done to make those shiny metallic embossed holos...

I hope they will look like this. As I look at the stripes of photoresist 5-20um wide and 2-4um thick - they are shiny and reflective. So maybe it could work with gelatine stripes alone too.

greetings

Adam

lilalinux · Post by **lilalinux** » Wed Jul 28, 2010 10:34 am

Aloha,

I'm new to the forum :dance: and new to holography (creation).

As I own a CNC milling machine

, I wonder if anyone has some scratch holos as CAD files (dxf, gcode, 3dm, ...)

.

rgds

Colin Kaminski · Post by **Colin Kaminski** » Thu Jul 29, 2010 3:24 am

It would be pretty easy to calculate. What format CAD files do you use?

lilalinux · Post by **lilalinux** » Thu Jul 29, 2010 7:24 am

Colin Kaminski wrote:It would be pretty easy to calculate. What format CAD files do you use?

I'm using Rhino CAD: http://www.rhino3d.com/
It's native format is *.3dm, but any other format will probably also do. It can handle *.dxf (AutoCAD), too.

Edit: The final format for the CNC milling machine is (human readable) G-code: http://en.wikipedia.org/wiki/G-code