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Thread: Fish Flap #2

  1. #1
    Senior Member Rank = Yonsai davethefish1's Avatar
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    Fish Flap #2

    the 'fish flap' feeding hatch i made a week or so ago, had started to sag a little where the adhesive tape was acting as a hinge.
    it still held ok but had dropped a bit with the weight of the polycarbonate.

    i decided to use hinges as they would be more sturdy.
    but didn't want big stainless steel hinges with bolts skewered through the polycarbonate.

    so i found some acrylic hinges on amazon, and used some tensol 12 adhesive i've had for years.
    to fix the hinges to the polycarb.

    i've used tensol 12 to make acrylic reactors for my old reef tank.
    it's a bit lary to use being an industrial strength adhesive, and you need good extraction as the fumes are potent and possibly dangerous.
    it's a bit like a solvent weld adhesive and superglue combination and makes very strong joints.

    Fish Flap #2-20191216_114345-jpg



    Fish Flap #2-20191216_133647-jpg



    Fish Flap #2-20191216_133638-jpg

    20191216_114345.jpg

    20191216_133647.jpg

    20191216_133638.jpg


    You don't have to be a pipefitter to keep koi...
    but it helps...

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  3. #2
    Senior Member Rank = Grand Champion Ajm's Avatar
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    Looks neat and tidy mate well done

    Sent from my F5121 using Tapatalk
    Johnathan

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    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    That's a great idea and in 11 Months time when I manufacture next years cover I'll be hunting everywhere for this thread to remember the name of the product!

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    Senior Member Rank = Yonsai davethefish1's Avatar
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    Quote Originally Posted by RS2OOO View Post
    That's a great idea and in 11 Months time when I manufacture next years cover I'll be hunting everywhere for this thread to remember the name of the product!
    i know what you mean, done the same myself before, and had to trawl through my own posts in order to find it...
    You don't have to be a pipefitter to keep koi...
    but it helps...

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  9. #5
    Extreme Koi Member Rank = Nanasai davec's Avatar
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    Hope there strong wouldn’t want em snapping like ones I’ve used I just used stainless steel ones on mine fastened to a 2 by 2 timber frame nice and sturdy


    Sent from my iPhone using Tapatalk

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  11. #6
    Senior Member Rank = Yonsai davethefish1's Avatar
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    no problem with mine...
    i chose them as the flap is nice and light, very easy to lift for feeding.
    they're plenty strong enough for a polycarbonate flap, even the 35mm is pretty light.
    plus being transparent they are very unobtrusive.

    but i'd say they would not be strong enough if your polycarbonate flap is screwed to a 2"x2" timber frame,
    as thats pretty cumbersome and heavy...
    You don't have to be a pipefitter to keep koi...
    but it helps...

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    Senior Member Rank = Nanasai smartin's Avatar
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    nice job mate looks very neat, I still have not braved cutting through my polycarb sheets as yet, I will have too at some point as lifting the whole sheet up each day is beginning to bug me......

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  15. #8
    Quote Originally Posted by smartin View Post
    nice job mate looks very neat, I still have not braved cutting through my polycarb sheets as yet, I will have too at some point as lifting the whole sheet up each day is beginning to bug me......
    Same for me..

    Great job here... Fish Flap #2


    Sent from my iPhone using Tapatalk

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  17. #9
    Senior Member Rank = Yonsai davethefish1's Avatar
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    Quote Originally Posted by smartin View Post
    nice job mate looks very neat, I still have not braved cutting through my polycarb sheets as yet, I will have too at some point as lifting the whole sheet up each day is beginning to bug me......
    that was my motivator...
    feeding them 5 or 6 times a day and hauling the whole sheet around got old real quick...
    You don't have to be a pipefitter to keep koi...
    but it helps...

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  19. #10
    Why don't people cut a hole in the poly ,get a slightly larger piece of poly ,place over the hole ,drill a hole through both pieces of poly thread a nut and bolt through and spin it open and shut..

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