Fysetc F6 Fan Duct

This is a fan duct for the Fysetc F6 board, as the TMC drivers can overheat very fast.

Things you need:
- 1 Radial fan needed: [3DSWAY RADIAL FAN](https://de.aliexpress.com/item/3DSWAY-3D-Printer-Fan-12V-24V-40-10mm-Hydraulic-Bearing-Blow-Radial-Cooling-Fan-Turbo-Fan/32813027533.html?ws_ab_test=searchweb0_0,searchweb201602_7_10065_10068_10547_319_317_10548_10696_10084_453_10083_454_10618_10304_10307_10820_10821_537_10302_536_10059_10884_10887_321_322_10103,searchweb201603_16,ppcSwitch_0&alg