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ROV thruster DT700 motor 3.5 kg trust (3D printed Kort nozzle)

enter image description here

This is 3D printed Kort nozzle designed for DT700 / DT750 motors.

Specifications:


Tested forward/reverce thrust at 12V

1A - 0,5/0,5 kg (0.5/0.5 lbs)

2A - 1,0/0,9 kg (2.2/1.98 lbs)

3A - 1,35/1,2 kg (2.98/2.65 lbs)

4A - 1,65/1,5 kg (3.64/3,31 lbs)

5A - 1,9/1,7 kg (4.19/3.75 lbs)

10A - 2,5/2,1 kg (5.51/4.63 lbs)

14A - 3/2,7 kg (6.61/5.95 lbs)

19A - 3,6/3,2 kg (7.94/7.05 lbs)

Efficiency (G/W) Thrust (G/Watts) (lbs/Watts)
at 1A: 41 g/w (0.09 lbs/w)

at 2A: 37 g/w (0.082 lbs/w)

at 3A: 31 g/w (0.068 lbs/w)</

We use 6 of them in our ROV "AVATAR" enter image description here

But as an experiment we also tried these engines even as an underwater arm thrusters. At a current of 15 amperes per motor, the speed is 1.85 mph with a swimmer weight of 166 pounds. enter image description here

We seldom use them at 20A cause big current means very short battery run time. If you will use them at high power you should prepare DT700 for it. Our test show this two small screws can not keep the motor from turning at maximum load. Even if you screw them hard they cannot make a good hole. This can lead to a break in the wires and damage to the motor. enter image description here

It's recommended to drill a sink: enter image description here

Although most brushless motors can work in water, it is recommended to make some modifications (even included Blue Robotics). Over time (after 100-1000 hours) microscopic damage appears on the wire's protective coating. Leakage of current through these holes can lead to malfunctions in the ESC or RC controllers. Moreover electric current into these holes causes electrochemical corrosion, which leads to a rapid destruction of the wires (after 10-100 hours). To prevent this we should impregnate the wires with epoxy. The engine will operate underwater with increased power (5-10 times the nominal!), so it is necessary to ensure a good heat dissipation. To do this, choose an epoxy with a high thermal conductivity. enter image description here

Forward and back thrust is almost the same. In the event of a breakdown of the propeller it is very easy to replace it even underwater. Our robot has made more than a hundred dives with these thrusters and they have proven themselves very well. We use batteries on board and thanks to a small current consumption our robot works 6-8 hours continuously without changing the batteries.

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ROV thruster DT700 motor 3.5 kg trust (3D printed Kort nozzle)

enter image description here

This is 3D printed Kort nozzle designed for DT700 / DT750 motors.

Specifications:


Tested forward/reverce thrust at 12V

1A - 0,5/0,5 kg (0.5/0.5 lbs)

2A - 1,0/0,9 kg (2.2/1.98 lbs)

3A - 1,35/1,2 kg (2.98/2.65 lbs)

4A - 1,65/1,5 kg (3.64/3,31 lbs)

5A - 1,9/1,7 kg (4.19/3.75 lbs)

10A - 2,5/2,1 kg (5.51/4.63 lbs)

14A - 3/2,7 kg (6.61/5.95 lbs)

19A - 3,6/3,2 kg (7.94/7.05 lbs)

Efficiency (G/W) Thrust (G/Watts) (lbs/Watts)
at 1A: 41 g/w (0.09 lbs/w)

at 2A: 37 g/w (0.082 lbs/w)

at 3A: 31 g/w (0.068 lbs/w)</

We use 6 of them in our ROV "AVATAR" enter image description here

But as an experiment we also tried these engines even as an underwater arm thrusters. At a current of 15 amperes per motor, the speed is 1.85 mph with a swimmer weight of 166 pounds. enter image description here

We seldom use them at 20A cause big current means very short battery run time. If you will use them at high power you should prepare DT700 for it. Our test show this two small screws can not keep the motor from turning at maximum load. Even if you screw them hard they cannot make a good hole. This can lead to a break in the wires and damage to the motor. enter image description here

It's recommended to drill a sink: enter image description here

Although most brushless motors can work in water, it is recommended to make some modifications (even included Blue Robotics). Over time (after 100-1000 hours) microscopic damage appears on the wire's protective coating. Leakage of current through these holes can lead to malfunctions in the ESC or RC controllers. Moreover electric current into these holes causes electrochemical corrosion, which leads to a rapid destruction of the wires (after 10-100 hours). To prevent this we should impregnate the wires with epoxy. The engine will operate underwater with increased power (5-10 times the nominal!), so it is necessary to ensure a good heat dissipation. To do this, choose an epoxy with a high thermal conductivity. enter image description here

Forward and back thrust is almost the same. In the event of a breakdown of the propeller it is very easy to replace it even underwater. Our robot has made more than a hundred dives with these thrusters and they have proven themselves very well. We use batteries on board and thanks to a small current consumption our robot works 6-8 hours continuously without changing the batteries.

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How To Be A Distributor Of A Billion-Dollar Market

 

According to a new study, the global commercial UAV market is expected to reach $2.07 billion by 2022. Increasing applications in law enforcement and geo mapping are expected to drive commercial UAV industry growth over the forecast period. Commercial drones are finding applications across various industry verticals globally. Every jindustrialized country in the world is making investments in drones, thus driving the scope and technological developments for applications in the commercial UAV market.

 

JTT Technology, a Shenzhen based company who is specialized in developing, producing and marketing of industrial drones. Within only 2 years, JTT has captured 2/3 shares of the domestic public security market, and the industrial UAV series are highly appraised by the overseas clients from Australia, Thailand, Morocco and other countries. This year we plan to add more countries in our marketing network, where we can extend our technical and sales expertise.

From joint development of solutions to best-in-class global distribution, working with JTT enables you to achieve your business objectives and help you stay ahead of the competition. We seek long term relationships with strong partners to serve their local markets. Our consultative approach allows us to identify customer requirements and span the project lifecycle, from planning and design to delivery, deployment, maintenance, and operation. Our reliable UAV products and flight control system are backed by many years of experience and applications. Together, we offer leading-edge products and solutions that meet the unique needs and challenges of our mutual customers.

 

The advantages of becoming our distributors are:

 

  • Attractive prices and rebates
  • After sale subsidy
  • Marketing materials and resources
  • Pilot and Drone Knowledge Training

 

 

Are you interested in becoming a distributor for industrial drones? Please feel free to contact Sales Director Coco Chen at sdos10@jttuav.com for details; we are thrilled to have you join this billion-dollar market!

 

Contact Information

 

Shenzhen JTT Technology Co.,Ltd.

Web: www.jttuav.com

Sales Contact: sdos10@jttuav.com

Business Cooperation: md04@jttuav.com

Tel: +86-755-86968648 

Add: 6F, A5 Building,  Nanshan i Park, No.1001 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong   P.R.C

Facebook: https://www.facebook.com/jttuav/

Twitter: https://twitter.com/JTTUAV

Read Full Story

How To Be A Distributor Of A Billion-Dollar Market

 

According to a new study, the global commercial UAV market is expected to reach $2.07 billion by 2022. Increasing applications in law enforcement and geo mapping are expected to drive commercial UAV industry growth over the forecast period. Commercial drones are finding applications across various industry verticals globally. Every jindustrialized country in the world is making investments in drones, thus driving the scope and technological developments for applications in the commercial UAV market.

 

JTT Technology, a Shenzhen based company who is specialized in developing, producing and marketing of industrial drones. Within only 2 years, JTT has captured 2/3 shares of the domestic public security market, and the industrial UAV series are highly appraised by the overseas clients from Australia, Thailand, Morocco and other countries. This year we plan to add more countries in our marketing network, where we can extend our technical and sales expertise.

From joint development of solutions to best-in-class global distribution, working with JTT enables you to achieve your business objectives and help you stay ahead of the competition. We seek long term relationships with strong partners to serve their local markets. Our consultative approach allows us to identify customer requirements and span the project lifecycle, from planning and design to delivery, deployment, maintenance, and operation. Our reliable UAV products and flight control system are backed by many years of experience and applications. Together, we offer leading-edge products and solutions that meet the unique needs and challenges of our mutual customers.

 

The advantages of becoming our distributors are:

 

  • Attractive prices and rebates
  • After sale subsidy
  • Marketing materials and resources
  • Pilot and Drone Knowledge Training

 

 

Are you interested in becoming a distributor for industrial drones? Please feel free to contact Sales Director Coco Chen at sdos10@jttuav.com for details; we are thrilled to have you join this billion-dollar market!

 

Contact Information

 

Shenzhen JTT Technology Co.,Ltd.

Web: www.jttuav.com

Sales Contact: sdos10@jttuav.com

Business Cooperation: md04@jttuav.com

Tel: +86-755-86968648 

Add: 6F, A5 Building,  Nanshan i Park, No.1001 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong   P.R.C

Facebook: https://www.facebook.com/jttuav/

Twitter: https://twitter.com/JTTUAV

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ArduSub 3.5.1 Released with Companion and QGC Updates

Hello everyone! The ArduSub development team is proud to announce our third stable release with a number of new features and reliability improvements. This release is also important because it is the first time we are synchronously releasing ArduSub, the Companion WebUI, and a special Blue Robotics build of QGroundControl.

Here are a few highlights from the new features.

ArduSub:

  • Support for the Bar100 pressure sensor, enabling dives to 1000 meter depth
  • Improved failsafes for better reliability

Companion WebUI:

  • Support for external positioning systems including the Water Linked Acoustic Positioning System
  • Improved one-click update process for the WebUI
  • Enable reset to factory defaults
  • Companion computer monitoring

"Companion WebUI" is our companion computer configuration and update software, on it's second official release.

QGroundControl:

  • More ArduSub-specific instruments available in the side panel
  • Custom logo at the top right for company branding
  • Support for boat/ROV positioning on the map
  • Improved video recording user interface
  • Recorded video size limits

For more details, please read our forum post about the update!

The ArduSub-powered BlueROV2 in a recent dive to 340 meter depth off the coast of Santa Barbara.

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