Source for Lenticular and "Fuzz" scan through materials?

[Slide]

Not exactly Lumia, but we are attempting to modify a commercially available motorized DMX controlled D/G disk.

The Lumia port is pretty good but we would like to swap out a couple of the other effects for a lenticular grating that gives a sort of "3D" effect, and also looking for a Fuzz effect.

I've attached an image of the type of lenticular FX from one of our other lasers. It looks like it's maybe 20 to 25 lines per inch. It gives a totally cheesy 3D image, but we've become addicted to programming with this cheap trick. This effect is often found in really inexpensive disco projectors from China.

Also looking for a good Fuzz effect. The Laser Fantasy projectors we were using in the 80's had a great fuzz D/G. Soft enough to layer images on top of, but didn't scatter too much light around the dome. Mike Lutz or Casey Stack once said that Floyd spotted a restaurant menu liner plastic that looked promising and ripped off a couple to use in projectors ha ha.

I've seen on PL that spraying plexi with a light layer of clear lacquer can work. We are using some found stuff in some projectors now, but it scatters a bit too much light around the dome.

Thanks in advance for any tips that might point us in the right direction.

Craig

[laserist]

https://www.edmundoptics.com/f/cylin...udHpw1XRtIzl0Q

https://www.meetoptics.com/lenses/ar...0YG5gD9z16nPBQ

I know, a bit pricey. You could try cutting a bunch of pyrex rods and slumping them together with a kiln.

You could try 3D printing or better machining a mold and casting the part. Or machining plexiglass or even glass and polishing the tool marks out. If you do any machining with ball end mills you should tilt the spindle to the work surface for a better result.

Or you could do a Google search on: 'art glass reeded sheet' ;-)

Fuzz, there's a finely pebbled glass used in framing to avoid reflections you might try. Another option is to rub plexiglass with paper to scratch the paper. The scratches will diffract the light and gives a light fuzz. How the scratches are oriented can give different looks. You could do it with glass, but would likely need to use a tiny dusting of corundum to scratch the glass. Different grades of curundum might be worth experimenting with...