Award-Winning Underwater FIFISH V6 - Collaboration between Farsoon Technologies and WeNext
Covering 71% surface of the earth, water presents a vast and beautiful landscape resource that has yet to be fully explored. Due to the challenging nature of the aquatic environment, the tools for underwater exploration were once limited to organizations with vast resources and knowledge. However, with the increasing popularity of activities such as underwater recreation, ecological preservation, and civil engineering, innovative and accessible products are needed to meet the demands of a consumer market.
Underwater Remote Operated Vehicles, or underwater ROV’s, are typically controlled by an operator located on a surface vessel or the shore using a control pad, in a similar way that you would play a video game or drive an RC car. A cabled system connects the ROV to the control unit and transfers electrical signals in between. In April 2019, QYSEA Technology, a leading ROV manufacturer, officially released the world's first omni-directional compact underwater ROV with an integrated 4K UHD camera, the FIFISH V6, which is equipped with 3D-printed protective covers or its smart vector thrusters.
Being one of the most popular underwaters consumer ROV’s, the FIFISH V6 features robust performance including maximum dive depth of 100m, an optimal 4.5 hours dive time, and a wide operational temperature range from -10 to 60°C. With an advanced underwater camera and VR system, the FIFiSH 6 offers users an accessible, unique and highly immersive underwater experience for scooting, filming, and inspection. With its outstanding functionality and innovation, FIFISH V6 has won two world-class awards: Good Design Award 2019 from G-MARK in Japan, and the iF Design Award 2020 in Germany.
Figure 1: FIFISH V6, the world's first 4K omnidirectional consumer ROV. Image source: QYSEA
FIFISH 6 gives users optimal control and unparalleled flexibility during underwater operations, thanks to a 6 smart vector thruster system equipped to ensure rapid omni-directional movements. The design of each thruster system consists of an embedded thruster, a circular motor and an enclosing protective cover. Electrically driven, the circular motor pushes the rotor blades located in the center of the engine pump cavity to generate thrust. Due to the complexity of underwater conditions, the thruster system will experience various extreme conditions including impact, collisions, and fouling during the diving process. To best protecting the vector thrusters, protective covers becomes key design elements that requires mechanical strength and good durability in order to avoid any damages during operation.
Figure 2: 3D-printed thruster protective cover by Farsoon's Flight™ Technology. Image source: WeNext
With version 6 of the FIFISH series, the design and production of thruster protective cover encountered multiple challenges when being produced using traditional processes: high cost, long lead time, limitations of design. Injection molds for each design iteration costs over 50,000 USD while requiring a 30-day production circle. On the other hand, industrial models of underwater ROV requires customization of designs, which are also limited by traditional design-manufacturing process.
Since 2018, QYSEA Technology partnered with the industrial additive manufacturing service bureau WeNext and adopted Farsoon's latest Flight™ Technologyfor their development process and series production needs. With a large build volume of 400 x 400 x 450 mm, 150 protective thruster covers are able to be produced in a single build. The powerful fiber laser and robust processing significantly improves throughput and achieved reduced cost per part. During the year of 2019 QYSEA has successfully fabricated more than 30,000 thruster protective covers on Flight HT403P systems for end-use parts in their consumer ROV products
Figure 3: QYSEA uses Farsoon Flight HT403P systems for end-use parts in their consumer ROV production. Image source: Farsoon
With the help of Flight™ Technology, during design iteration, QYSEA was able to accelerate the development cycle from over 30 days to less than 7 days. For end-use part production, series production cost of customized thruster protective covers is reduced by 80% compared to the traditional manufacturing process. The end-use part produced with the FlightTM laser sintering technology is able to achieve improved size accuracy and feature resolution while meeting the requirement for performance bypassing functional tests including temperature, collision, and fatigue.
"3D printing technology offers infinite possibilities for future underwater ROV innovation," says Ms. Li, Deputy general manager of QYSEA, “Farsoon’s Flight™ Technology opened our eyes to a new level of advanced production speed, optimal yield and freedom of customization. Now we have full confidence to achieve faster product development and additive series production at an economical cost."
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