Shop OBEX P1 Docs P2 Docs Learn Events
submersible motors — Parallax Forums

submersible motors

ArchiverArchiver Posts: 46,084
edited 2003-05-29 23:33 in General Discussion
anyone know where to get cheap submersible motors that would be water
proof down to several feet under water (eg >7 feet)? I heard that
bilge pump motors are water proof but I'm not sure up to what depth.
I've heard of 'model airplane fuel pump' motors being used on
submersible robots too but I'm not sure about their power/depth.
Thanks everyone.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-05-29 22:12
    hey that's great that's what I'm working on, use Minn Kotta 12 or 24 volt dc
    trolling motors, they will be fine at those depths, if you want to go deeper
    you can drill a hole in the case, upgrade the bearing to a waterproof one,
    fill the motor with medical grade mineral oil, and put a rubber diaphragm
    over the hole. The diaphragm and oil allow the pressure inside and outside
    to be equal so nothing tries to squirt out. The oil will only work on
    brushless motors, obviously it will burn in a brush motor. Often some of
    the trolling motor co's will sell remanufactured/repaired motors for about
    half price.

    They will go plenty deep, hundreds of feet. Without modification you
    should get 7 feet no problem.

    Original Message
    From: "Sam" <hard-on@t...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, May 29, 2003 4:47 PM
    Subject: [noparse][[/noparse]basicstamps] submersible motors


    > anyone know where to get cheap submersible motors that would be water
    > proof down to several feet under water (eg >7 feet)? I heard that
    > bilge pump motors are water proof but I'm not sure up to what depth.
    > I've heard of 'model airplane fuel pump' motors being used on
    > submersible robots too but I'm not sure about their power/depth.
    > Thanks everyone.
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-05-29 22:35
    You could try a In the Tank Fuel Pump. Motor. I have a used one that you are
    Welcome To. Looks like you may need to cut the end off in order to get to the
    Shaft. It operates on 12 VDC and came from a Breatta.

    Wayne
  • ArchiverArchiver Posts: 46,084
    edited 2003-05-29 22:52
    That's a good idea, waterproof and won't use many amps. Cheaper controller
    too, what would you use as a controller?


    Bill
    Original Message
    From: <KAW1954@a...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, May 29, 2003 5:35 PM
    Subject: Re: [noparse][[/noparse]basicstamps] submersible motors


    > You could try a In the Tank Fuel Pump. Motor. I have a used one that you
    are
    > Welcome To. Looks like you may need to cut the end off in order to get to
    the
    > Shaft. It operates on 12 VDC and came from a Breatta.
    >
    > Wayne
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-05-29 23:33
    can you tell us a little bit about what you want to build in the way of a
    submersible vehicle??
    Bill

    Cure Cancer and Smallpox with your computer.
    It runs as a screen-saver Sponsored by Intel:
    http://members.ud.com/download/gold/
    Original Message
    From: "Sam" <hard-on@t...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, May 29, 2003 4:47 PM
    Subject: [noparse][[/noparse]basicstamps] submersible motors


    > anyone know where to get cheap submersible motors that would be water
    > proof down to several feet under water (eg >7 feet)? I heard that
    > bilge pump motors are water proof but I'm not sure up to what depth.
    > I've heard of 'model airplane fuel pump' motors being used on
    > submersible robots too but I'm not sure about their power/depth.
    > Thanks everyone.
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
Sign In or Register to comment.