Birdbone Plus FPV Quadcopter Frame

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Update (4/15/18): File, "bb004v1.1 plus motor mount lower.stl" added after substantial testing. This is a stronger version of the lower motor mount part. The v1.0 part had too much flex. The Birdbone Plus is a very fast and lightweight freestyle/race FPV quadcopter frame that can accommodate 4", 5", and 6" props. It uses standard 8mm O.D. carbon tubing for arms, cut to length as needed for your propellers. I developed the frame using ABS and SemiFlex. Other materials will work well too. Typical weights for a 6" prop configuration are 75 grams for printed components and tubes, and around 25 grams for all mounting hardware. Substitute nylon/aluminum/titanium mounting hardware to reduce weight further. Download the latest instructions.pdf file for build process details. PARTS LIST: - Arris 8mm O.D. 3K tubing (Amazon ASIN: B00TF8UY9A) - Fine toothed hacksaw blade and a hacksaw - #4 x 3/4" length thread forming screws (McMaster P/N 92295A109) (Qty=8) - M3 x 12mm length screws (McMaster P/N 92095A183) (Qty=20) - A 3/32" drill bit specific for drilling carbon fiber (McMaster P/N 2828A71) - 4 x 3/8" pan head sheet metal screws (McMaster P/N 90190A108) (Qty=8) - 35mm long standoffs (Amazon ASIN: B071NFCP8W) - M3 x 8mm (McMaster P/N 92095A181) (Qty=4) - M3 x 22mm (McMaster P/N 92095A473) (Optional, Qty=4) - Nylon standoffs (McMaster P/N's 94639A702 and/or 94639A706)