Birdbone Plus FPV Quadcopter Frame

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 a little too much flex.

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The Birdbone Plus is a very fast, lightweight, rugged, 3d printable, plus configuration freestyle/race FPV quadcopter frame that can accommodate 4", 5", and 6" props.  It uses standard 8mm O.D. carbon tubing for arms.  Cut the tubes to length as-needed for your props.

I developed the frame using ABS and SemiFlex.  Other materials will likely work very well.  Typical weights for a 6" prop configuration are 75 grams for the printed components and tubes, and around 25 grams for all the mounting hardware.  Substitute nylon/aluminum/titanium mounting hardware to further reduce weight.

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)

(Qty=8) #4 x 3/4" length thread forming screws (McMaster P/N 92295A109)

(Qty=20) M3 x 12mm length screws (McMaster P/N 92095A183)

A 3/32" drill bit specific for drilling carbon fiber (McMaster P/N 2828A71)

(Qty=8) 4 x 3/8" pan head sheet metal screws (McMaster P/N 90190A108)

35mm long standoffs (Amazon ASIN:  B071NFCP8W)

(Qty=4) M3 x 8mm (McMaster P/N 92095A181)

OPTIONAL (depends on electronics):

(Qty=4) M3 x 22mm (McMaster P/N 92095A473)

Nylon standoffs (McMaster P/N's 94639A702 and/or 94639A706)