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Thanks for all your help guys. Im deciding to go down the LaserDisc Galvo route. But if that doesnt work, I will try speakers. Failing that, I might consider going back to stepper motors. Alex

Thanks for your help guys! Just out of interest, how can you interface a voice coil to a microprocessor to create a multi line liquid sky and other effects? Also do you know of any other laser projector projects other than the one by Elm Chan and Norm? Alex

Hey. Does anyone know where i can get the sort of stepper motors shown on the attatched image? Ive searched high and low for them and cant find anywhere that sells them. :-? Please Write Back Alex