R/C Helicopter Rear Rotor Blade

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As soon as a friend of mine learned that I had a new 3D printer, he began finding things for me to print for him. His R/C helicopter had a broken rear rotor blade, so I said I'd give it a go. The copter is nothing fancy, just a cheap toy without any name or model other than "Tough-Copter". I printed this twice to get it right. The first time, I printed using a raft and supports with the blade sitting upright as normal. The support material on the bottom of the blades was a PAIN to get off cleanly and smoothly on such a thin part. Next, I printed it with a brim instead and supports, but this time I turned the blade 90° on it's side. This added support to just the underside of the middle cylinder and the mounting points for the blades. That seems to be the best orientation for which to print. Print Settings Supports: Yes  Resolution: 0.1  Infill: 60%