Looking to trade diffraction gratings, stuff

[BrewCityMusic]

I'm building a couple of "firefly" projectors and would like some different diffraction gratings to mess with, I have several 6"X10" sheets of 11500 XY grating that I'd be willing to swap for some line gratings or ??? (just different stuff to experiment with, the aperature of the projector is 2" and the revolving wheels are 4.5", so I'd prefer sheet-style gratings in at least a 6X6 size to trade...)

PM me with what you have! Thanks!

 

[Alexizupinhea]

well if you don't get to trade them... would you possibly sell me a sheet? If so, how much for one shipped (live in US).

 

[diachi]

I have some line generating diffraction gratings :