* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



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*STOP PRESS* Coronavirus. A lot of Clubs have already cancelled all activities. Check carefully before you plan any travel

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CANCELLED because of coronavirus. Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
CANCELLED because of coronavirus. Bournville Sub Day, Sunday 10th May 2020

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Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

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Model Boat Convention, Haydock Park (Cancelled this year)

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Bournville Sub Day, Sunday 13th September

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Club Submarine Regatta, Furness MBC, Barrow in Furness, Sunday 20th Sept 2020

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    Operating grab arm...

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    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3002
    Join date : 2010-11-05
    Age : 60
    Location : Nevada, USA

    Operating grab arm... Empty Operating grab arm...

    Post  Tom(ADMIN) on Sun Nov 07, 2010 6:38 pm

    I want to fit an operational grab arm on my Thunder Tiger Neptune with the idea of dropping a metallic item into the water, and then with the floodlamps switched on and the video camera recording every move, to submerge and pick up the item.

    I've come up with a rough drawing, but having never attempted anything like this before, I'd welcome some comments or criticisms, or even any ideas as to if it will work or not.

    This is what I've come up with...


    Operating grab arm... Grab_a10

    What do you think, guys? The servo should push the rod out to the horizontal and then with a bit a careful steering I want to be able to pick up the metallic item with the magnet.
    Subwarrier
    Subwarrier
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    Posts : 6
    Join date : 2010-11-15

    Operating grab arm... Empty Re: Operating grab arm...

    Post  Subwarrier on Mon Nov 15, 2010 6:47 pm

    Why limit yourself to only one arm, get a pair like the full sized mini subs
    avatar
    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3002
    Join date : 2010-11-05
    Age : 60
    Location : Nevada, USA

    Operating grab arm... Empty Re: Operating grab arm...

    Post  Tom(ADMIN) on Mon Nov 15, 2010 6:53 pm

    I'll get one going first, then maybe think about another...maybe one forward mounted and another side mounted.
    Giovanni LiCalsi
    Giovanni LiCalsi
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    Location : Alameda, California, USA

    Operating grab arm... Empty Re: Operating grab arm...

    Post  Giovanni LiCalsi on Tue Nov 16, 2010 9:31 am

    Take a look at Firgelli linear servos.
    http://www.firgelli.com/
    Giovanni
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    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3002
    Join date : 2010-11-05
    Age : 60
    Location : Nevada, USA

    Operating grab arm... Empty Re: Operating grab arm...

    Post  Tom(ADMIN) on Tue Nov 16, 2010 9:38 am

    Very interesting, Giovanni...many thanks for that.




    Richard(ADMIN)

      Current date/time is Mon Jun 01, 2020 5:20 pm