Rev350

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The rev350 is a custom designed + built ~370mm motor to motor distance H-quad with simplicity and durability in mind. It uses 6 unique FR-4 plates, 10mm carbon-hybrid booms (as described here: https://www.fortisairframes.com/how-to-carbon-hybrid-booms/) and 10mm basswood, held together with M3 screws. It uses a clean/dirty plate system, with the motors/ESCs on the vibration isolated carbon fiber frame, and the cameras, flight controller, and battery (for weight) below. It is designed primarily to use a G1W dash cam as the main flight recording camera, but has the mounting option for a brushless gimbal + GoPro.

File:Rev350 Inventor 7-4-2014.png
rev350 Quad, as modeled in Autodesk Inventor.
File:Rev350-X8 Assembled 7-27-2014.png
rev350 in Octo-X8 configuration, as modeled in Autodesk Inventor.

Design

The rev350 quadcopter has an all-up weight of 1.115kg including G1W dash cam, and 1.513kg including battery. This gives an estimated hover power consumption of 168W with DT-700s and 11x4.7" props, yielding a hover time of ~19 minutes with a 5AH battery. Flight time would increase to ~29 minutes with a 10AH battery. The peak power usage of the rev350 will be ~600W at >925g of thrust per motor, yielding a current of ~50A. In the quick-change battery configuration the quad will have an estimated all-up weight of 1.6kg including camera and battery. This gives an estimated hover time of ~18 minutes on the 5000mAH main battery and ~3 minutes on the 850mAH reserve battery.

System Cost

Part Quantity Unit Cost Total Cost Source
1280MHz 500mW TX/RX Kit 1 $47.00 $47.00 BestOfferBuy
Philips 7" LCD (PD7012) 1 $22.95 $22.95 eBay
Sony Super HAD CCD 600TVL Camera w/2.8mm Lens 1 $29.01 $29.01 SurveilZone
22AWG Twisted 30cm Servo Lead Extension (5 pcs.) 1 $2.79 $2.79 HobbyKing
AbuseMarK Naze32 Flight Controller 1 $73.45 $73.45 AbuseMarK
36" Basswood 10x10mm Arms 1 $2.49 $2.49 Magnum Wood
10x10x750mm Carbon Fiber Boom 2 $4.94 $9.88 HobbyKing
hexTronik DT-700 700kV Brushless Outrunner 4 $13.30 $53.20 HobbyKing
HobbyKing F-30A 30A Brushless ESC 4 $8.86 $35.44 HobbyKing
Turnigy 5000mAH 20C 3S LiPo Battery 1 $21.98 $21.98 HobbyKing
GWS 10x4.7" Slow Fly Prop (6 pcs.) 2 $4.47 $8.94 HobbyKing
GWS 10x4.7" Counter Rotating Slow Fly Prop (6 pcs.) 2 $4.47 $8.94 HobbyKing
4mm Hex Nut (10 pcs.) 1 $0.79 $0.79 HobbyKing
PolyMax 3.5mm ESC/Motor Connectors (10 pairs) 1 $1.50 $1.50 HobbyKing
XT60 Connectors (5 pairs) 1 $3.19 $3.19 HobbyKing
Turnigy Red Silicone 14ga. Wire (1m) 1 $1.39 $1.39 HobbyKing
Turnigy Black Silicone 14ga. Wire (1m) 1 $1.39 $1.39 HobbyKing
Shipping (HobbyKing) 1 $29.33 $29.33
Total Cost $858.49 (as of 5/22/12)

Mass Budget

Part Quantity Unit Mass (g) Total Mass (g)
Thrust (DT-700 + 10x4.7") 4 -890 -3560
rev350 Frame, FC, Motors, Props, G1W Camera, Rx, Wiring Harness, Misc. HW 1 1115 1115
Turnigy 5000mAH 20C 3S LiPo Battery 1 397.7 397.7
AUW (No Battery) 1115
AUW 1512.7
Net Thrust -2047.3 (2.3 TWR)

Photos

Videos