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I use 20kbps galvos from Ebay and cheap blue(violet) laser pointer for a start.At first I didn't have the microchip mcp4822 and used two single-channel DAC on MCP4725 with i2c interface (second photo). It was two times slower, prodeces curves instead lines, induce sadness. MCP4822-based DAC is very good.
If I understand correctly, that 20k galvo provides the drawing 20,000 points per second or 800 pixels per frame at 25 frames per second? The pictures presented here, much less "points". What is the mosst complex picture did you do?
Hi, cool project! That's what I was looking for.Pictures have bright nodal points. What is the reason of their appearance (and it is possible to reduce them)?
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