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What material to use when laser-cutting gears?

Hello everyone! I'm trying to desing a reasonably complicated assembly with gears. I've done some prototyping with cutting gears from metal before, although the precision was good, weight was an issue. I need to keep the gears as light as possible without losing much from the accuracy (I do have relatively small gears, I'm using a tooth size of 1 mm). I want to try out other materials, any suggestions about which materials might be more suitable?

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