Rev350

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 will have an estimated all-up weight of 1.35kg including G1W dash cam and battery. This gives an estimated hover power consumption of 137W with DT-700s and 11x4.7" props, yielding a hover time of ~24 minutes with a 5AH battery. Flight time would increase to ~32 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	-840	-3360
900MHz 100mW Video TX	1	(28.1)	(28.1)
900MHz Cloverleaf Antenna	1	(16.3)	(16.3)
Camera + Wiring Harness/Voltage Regulator	1	(19.7)	(19.7)
Turnigy 9X RX (With RSSI)	1	8.7	8.7
AbuseMarK Naze32 Flight Controller	1	7.4	7.4
rev0SD	1	(45.2)	(45.2)
fpvmanuals Delrin Tricopter Kit	1	196.6	196.6
Basswood Arms (Back)	1	16.5	16.5
Basswood Arms (Front)	2	19.7	39.3
DT750 750kV Brushless Motor	4	84.1	336.4
F-30A Brushless ESC	4	35.9	143.6
Turnigy 5000mAH 20C 3S LiPo Battery	1	397.7	397.7
GWS 10x4.7" Prop	4	7.8	31.2
14ga. Battery-ESC Wiring Harness	1	55.5	55.5
Tape, Zip-ties, Misc. Hardware	1	(184)	(184)
AUW (No Battery)			(956)
AUW			1353.7
Net Thrust			-1346.3

Photos

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  Initial assembled rev350 with basswood arms.

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  rev350 frame with basswood arms.

Videos

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