Couplers?

Discussion in 'Low Power Rocketry (LPR)' started by Doug Holverson, Aug 10, 2019.

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  1. Aug 10, 2019 #1

    Doug Holverson

    Doug Holverson

    Doug Holverson

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    Is there a spiritual successor to Totally Tubular these days? Especially a supplier of old school fish paper couplers?
     
  2. Aug 10, 2019 #2

    kuririn

    kuririn

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    Those are the black couplers right? Totally Tubular was acquired by erockets some years ago. They have a variety of the black couplers, don't know if they are fish paper or not. Description says fiber. One example:
    http://www.erockets.biz/semroc-tubing-coupler-16-1-75-long/
    You could also inquire at BMS.
     
  3. Aug 10, 2019 #3

    BABAR

    BABAR

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  4. Aug 12, 2019 #4

    kuririn

    kuririn

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    Fishpaper
    Fish paper or fishpaper is a strong, flexible, fibrous dielectric paper. It resists moderate heat and mechanical injury, and is often used for wrapping coils and insulating stove-top parts. It is hygroscopic and so must be treated with paraffin for use in moist environments. Some fish papers incorporate mica layers to increase the dielectric strength while still giving good mechanical strength.
    (From Wikipedia)
     
  5. Aug 13, 2019 #5

    BABAR

    BABAR

    BABAR

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    gee, I just cut a segment of the body tube the length of the coupler I want, cut out a lengthwise segment to get to about the right diameter, bring the free edges together and tape with masking tape, and glue it into place in both tubes (if a permanent joint) or one tube (if using it as a separable coupler [?oxymoron?}) like for staging.

    Instant coupler.

    Not as tough as the ones you can buy, but presumably just as strong as the surrounding body tube, so the body tube will likely fail before the coupler does.
     
  6. Aug 14, 2019 at 2:23 AM #6

    astronwolf

    astronwolf

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    erockets sells them.
    [​IMG]
     

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