Rev350: Difference between revisions

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==Design==
==Design==
The rev350 quadcopter has an all-up weight of 1.115kg including G1W dash cam, and 1.5..kg including 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.
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.
 
The rev350 was brought out of storage and updated around 1/10/21 (flight controller reset and firmware update), however on its first flights after the right rear motor appeared to be revving up/down compared to the other motors causing erratic flight behavior. A new flight controller (SpeedyBee F7 AIO) and motor controller (FETtec 35A 4-in-1) were purchased to remedy this.


==System Cost==
==System Cost==
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|-
|-


|AbuseMarK Naze32 Flight Controller
|<s>AbuseMarK Naze32 Flight Controller</s>
|1
|1
|style="text-align:right;" |$73.45
|style="text-align:right;" |$73.45
|style="text-align:right;" |$73.45
|style="text-align:right;" |$73.45
|[http://abusemark.com/store/index.php?main_page=product_info&cPath=1&products_id=30 AbuseMarK]
|[http://abusemark.com/store/index.php?main_page=product_info&cPath=1&products_id=30 AbuseMarK]
|-
|SpeedyBee F7 AIO Flight Controller
|1
|style="text-align:right;" |$59.44
|style="text-align:right;" |$59.44
|[https://www.amazon.com/gp/product/B086WZ24GD/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 Amazon]
|-
|-


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|-
|-


|HobbyKing F-30A 30A Brushless ESC
|<s>HobbyKing F-30A 30A Brushless ESC</s>
|4
|4
|style="text-align:right;" |$8.86
|style="text-align:right;" |$8.86
|style="text-align:right;" |$35.44
|style="text-align:right;" |$35.44
|[http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15205 HobbyKing]
|[http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15205 HobbyKing]
|-
|FETtec 35A 3-6s 4-in-1 Brushless ESC
|1
|style="text-align:right;" |$67.85
|style="text-align:right;" |$67.85
|[https://www.team-blacksheep.com/products/prod:fettec_4in1_6s_35a Team Blacksheep]
|-
|-


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|
|
|
|
|style="text-align:right;" |'''$858.49'''
|style="text-align:right;" |'''$416.18'''
|(as of 5/22/12)
|(as of 1/26/21)
|-
|-
|}
|}
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|Thrust (DT-700 + 10x4.7")
|Thrust (DT-700 + 10x4.7")
|4
|4
|style="text-align:right;" |-840
|style="text-align:right;" |-890
|style="text-align:right;" |-3360
|style="text-align:right;" |-3560
|-
 
|900MHz 100mW Video TX
|1
|style="text-align:right;" |(28.1)
|style="text-align:right;" |(28.1)
|-
 
|900MHz Cloverleaf Antenna
|1
|style="text-align:right;" |(16.3)
|style="text-align:right;" |(16.3)
|-
 
|Camera + Wiring Harness/Voltage Regulator
|1
|style="text-align:right;" |(19.7)
|style="text-align:right;" |(19.7)
|-
 
|Turnigy 9X RX (With RSSI)
|1
|style="text-align:right;" |8.7
|style="text-align:right;" |8.7
|-
 
|AbuseMarK Naze32 Flight Controller
|1
|style="text-align:right;" |7.4
|style="text-align:right;" |7.4
|-
 
|rev0SD
|1
|style="text-align:right;" |(45.2)
|style="text-align:right;" |(45.2)
|-
 
|fpvmanuals Delrin Tricopter Kit
|1
|style="text-align:right;" |196.6
|style="text-align:right;" |196.6
|-
|-


|Basswood Arms (Back)
|rev350 Frame, FC, Motors, Props, G1W Camera, Rx, Wiring Harness, Misc. HW
|1
|1
|style="text-align:right;" |16.5
|style="text-align:right;" |1115
|style="text-align:right;" |16.5
|style="text-align:right;" |1115
|-
 
|Basswood Arms (Front)
|2
|style="text-align:right;" |19.7
|style="text-align:right;" |39.3
|-
 
|DT750 750kV Brushless Motor
|4
|style="text-align:right;" |84.1
|style="text-align:right;" |336.4
|-
 
|F-30A Brushless ESC
|4
|style="text-align:right;" |35.9
|style="text-align:right;" |143.6
|-
|-


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|style="text-align:right;" |397.7
|style="text-align:right;" |397.7
|style="text-align:right;" |397.7
|style="text-align:right;" |397.7
|-
|GWS 10x4.7" Prop
|4
|style="text-align:right;" |7.8
|style="text-align:right;" |31.2
|-
|14ga. Battery-ESC Wiring Harness
|1
|style="text-align:right;" |55.5
|style="text-align:right;" |55.5
|-
|Tape, Zip-ties, Misc. Hardware
|1
|style="text-align:right;" |(184)
|style="text-align:right;" |(184)
|-
|-


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|
|
|
|
|style="text-align:right;" |'''(956)'''
|style="text-align:right;" |'''1115'''
|-
|-


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|
|
|
|
|style="text-align:right;" |'''1353.7'''
|style="text-align:right;" |'''1512.7'''
|-
|-


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|
|
|
|
|style="text-align:right;" |'''-1346.3'''
|style="text-align:right;" |'''-2047.3 (2.3 TWR)'''
|-
|-
|}
|}

Latest revision as of 23:53, 26 January 2021

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.

The rev350 was brought out of storage and updated around 1/10/21 (flight controller reset and firmware update), however on its first flights after the right rear motor appeared to be revving up/down compared to the other motors causing erratic flight behavior. A new flight controller (SpeedyBee F7 AIO) and motor controller (FETtec 35A 4-in-1) were purchased to remedy this.

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
SpeedyBee F7 AIO Flight Controller 1 $59.44 $59.44 Amazon
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
FETtec 35A 3-6s 4-in-1 Brushless ESC 1 $67.85 $67.85 Team Blacksheep
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 $416.18 (as of 1/26/21)

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

  • Initial assembled rev350 with basswood arms.

    Initial assembled rev350 with basswood arms.

  • rev350 frame with basswood arms.

    rev350 frame with basswood arms.

Videos

<HTML5video type="youtube" width="400" height="300" autoplay="false">zhC1BoI1Qlk</HTML5video>

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