FCS fins
thingiverse
FCS Thruster fins size 2. I have had 10 surfs with them in up to 6 foot surf and have had no problems. Print Settings Printer Brand: RepRap Printer: prusa i3 Rafts: No Supports: No Resolution: 0.2 Infill: 100% Post-Printing After printing it will need to be sanded smooth and a small hole drilled for the grub screw to grip.
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