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Worked onPractical information:

  • General overwiew over project
    • powersupply
    • comunication between land unit and ROV
  • stepper motors
    • implementation in ROV
      • Casing 
        • waterproofing
        • modeling
      • Shaft
      • coding
    • wiring


For more information check:

  • Bachelor 2021
  • Summer 2021


General overview:


Power:

Supplying power to ROV(30 V):

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Supplying power to land unit (12 V):

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Land unit:

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Overview of land unit


Teather to ROV only utilize two wires(green and green/white) for data, the rest is for power.


Work done on stepper motors and casing

Shaft:

New shaft needed to fit the casinghave been made, but the lathe is not accurate enough, and drills an uneven hole.

Issues with old shaft:

  • profile:
    • Too short (has to be 11.8)
  • top down:
    • hole off center
    • hole too large

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stepper motor holder top down


magnet-holder (white):

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  • too wide to fit stack 

magnet holder profile

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new models have to take this in to consideration.


Waterproofing:

Group has concludet concluded thtat filling the housing with oil is the best solution for waterproofing, as the shaft it will make it be dificult to fully waterproof the surounding area of the shaft.


Coding:

Formated code to work with teensy, can be found on github:

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