Vented Fan Duct for MicroSwiss Hot End

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I noticed that the Micro-Swiss Hot End version of the fan duct blocks the sides of the heat sink almost entirely, so I opened a vent in the side to allow more airflow through the fins and better cooling. There are two versions available - one is the original height with vents cut into each side, while the other has a simple plane cut to make it shorter overall. I'm running the vented version on my rig, but haven't tried the other yet. It's unclear which one will work better.