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I've always liked XY audio oscilloscope displays so I decided to build an XY laser using a Midwest Laser scanner (this appears to replace the scanner I bought). My first images were using my MOTM E350 Morphing Terrarium which generates some pretty nice patterns.
I built the XY laser on a wood base with a power supply for the XY drivers and a power supply for the laser and fan. The drivers get reasonably hot so I force air cool them. The drivers operates with +/-5V signals so it is ideally suited for my synthesizer levels.
Laser alignment is critical so I allow adjustment in both height and rotation.
Here is a video of the laser being driven by the MOTM E350 Morphing Terrarium. Note that in this video I am frequency modulating the Morphing Terrarium so it sounds more dynamic but the frequency does not affect the display, only the morph inputs do. Half way through the video I switch to a different bank.
This is another patch with the E350 Morphing Terrarium in Phase Mode. Note that in this video I am not modulating the frequency.