MegaLongRange

The 7'' long range quadcopter frame with 3D printed accessories

How does it fly?

GoPro Hero 7 Black, no stabilisation on BrotherHobby 2808 1500kv motors, 1800mAh 6S LiPo: Watch on YouTube

Additional hardware required

• Two (2) M3x28mm aluminium standoffs, external diameter 5mm
• Four (4) M3x20mm aluminium standoffs, external diameter 5mm
• Twelve (12) M3x8mm screws to secure the standoffs to carbon fiber plates
• Two (2) "double" chainring bolts (different size may be needed if you change any plate or arm thickness)
  • the bottom cylinder needs to be about 8mm tall, excluding the base
  • the top screw needs to be exactly 10mm tall, excluding the head

Weight estimates

All carbon fiber parts plus hardware.

6mm arms: 137g

5mm arms: 117g

4mm arms: 97g

For canopy and antenna mount prints, add another 20-30g.

Suggested parts that fit the 3D prints

• The canopy is designed for DJI FPV camera, so it would make sense to go with a DJI FPV Air Unit.
• If using a DJI FPV Air Unit, you'll need two (2) TBS MMCX-to-SMA pigtails for the antenna mount.
• A TBS Crossfire Diversity Nano RX with two (2) TBS Crossfire Immortal T antennas (See also extended and extra extended versions).

Custom Motor Mixes

Since this is a dead-cat frame, you might find it easier to use custom motor mixing to get your tune right. I did the math for you, so here goes.

This is what I have on my build, with reversed motors ("props out"):

mixer custom
mmix reset
mmix 0 1 -0.74 0.728 -1
mmix 1 1 -1 -0.728 1
mmix 2 1 0.74 0.728 1
mmix 3 1 1 -0.728 -1

References

The design of this frame was inspired by, and it retains signature features from the MiniLongRange 5'' by Dave_C.