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Originally Posted by team222badbrad
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I'm clearly not keeping up with the times if we're up to printing FRP. Still, their claim is the material is stronger than aluminum PER kg. A better strength-to-weight ratio is often a good thing, but if your limiting factor is volume, not weight, then it's not the important metric. In this case, the pulley geometry is already defined, so the important metric is strength per unit volume, which I suspect aluminum or sintered metal would better at.