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



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First events now posted for 2020. Let us know what you have planned.

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Bournville Sub Day, Sunday 10th May 2020

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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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    today's work

    merriman
    merriman
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    Posts : 315
    Join date : 2011-10-16
    Age : 71
    Location : Virginia Beach, Virginia

    today's work - Page 2 Empty Re: today's work

    Post  merriman on Mon Jan 06, 2020 11:51 am

    david f wrote:Very interested to see you turning down stainless steel motor shafts. Not for the faint hearted!

    Great work.

    David

    Indeed, David. For that stuff common tool-steel cutters are not up to the task. However, this Carbide tipped tool; bathing the work in oil; along with thoughtful machine set-up, got the job done with no chatter or dragging.

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    A tightened four-jaw chuck, and all gibs grabbing their respective rails with a death-grip helped.

    Any idiot can turn machine-brass. Stainless, on the other hand, will test you!

    David
    merriman
    merriman
    Guest

    Posts : 315
    Join date : 2011-10-16
    Age : 71
    Location : Virginia Beach, Virginia

    today's work - Page 2 Empty Re: today's work

    Post  merriman on Tue Jan 07, 2020 5:04 am

    Today was spent machining the motor bulkheads to fit the Lexan cylinders that house the items within the model submarine that have to be maintained in a dry environment. Most of the work dedicated to mounting the outrunner type brushless motors within the MB's.

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    To facilitate motor testing and MB certification I assembled this test rig comprising a battery, electronic speed controller, switch, and servo-setter (pressed into service to act as a 'throttle').

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    Tomorrow I explore what it takes to assemble, test, and certify a MB equipped with the gear-splitter.

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    merriman
    merriman
    Guest

    Posts : 315
    Join date : 2011-10-16
    Age : 71
    Location : Virginia Beach, Virginia

    today's work - Page 2 Empty Re: today's work

    Post  merriman on Fri Jan 17, 2020 3:53 am



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      Current date/time is Fri Jan 24, 2020 2:27 pm