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  • painted steel thickness

    From Peter Fairbrother@21:1/5 to All on Sat Jul 20 15:46:25 2024
    Is there a gadget which will measure the thickness of painted steel
    sheet from one side? I am thinking of buying a steel boat.

    Thanks

    Peter Fairbrother

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  • From pyotr filipivich@21:1/5 to All on Sat Jul 20 09:00:18 2024
    Peter Fairbrother <peter@tsto.co.uk> on Sat, 20 Jul 2024 15:46:25
    +0100 typed in rec.crafts.metalworking the following:
    Is there a gadget which will measure the thickness of painted steel
    sheet from one side? I am thinking of buying a steel boat.

    There are. How much do you want to spend?

    It's been decades, but I remember we had some sort of I think it
    was ultrasonic gizmo, with a sensor head at one end you placed on the
    part, and it measured the thickness.

    Thanks

    Peter Fairbrother
    --
    pyotr filipivich
    "With Age comes Wisdom. Although far too often, Age travels alone."

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  • From Bob La Londe@21:1/5 to Peter Fairbrother on Sat Jul 20 09:24:13 2024
    On 7/20/2024 7:46 AM, Peter Fairbrother wrote:
    Is there a gadget which will measure the thickness of painted steel
    sheet from one side?  I am thinking of buying a steel boat.

    Thanks

    Peter Fairbrother


    Not that I am aware of, but a big F type long reach caliper might be
    able to reach around a gunnel.

    https://www.harborfreight.com/hand-tools/measuring-marking/calipers-micrometer/calipers/6-in-long-reach-digital-caliper-63714.html

    I have a cheap digital one that I use once in a great while, and in fact
    the last thing I used it for was measuring the thickness of a boat hull.
    That one had a small round gunnel and I was able to use the caliper by itself, but if it had a wide gunnel I might use a 123 block or a 246
    block to help with the reach.

    However, be aware that there may be reasons for the bottom of the hull
    and the sides of the hull to be different thickness. For instance a jet
    built for running a rocky river "might" have a much thicker hull on the
    bottom.

    I don't have a caliper that can reach around and measure the bottom.

    Another method, if its a commercially made boat, might be to look up its
    specs online or call/email the manufacturer and ask them. A couple
    years ago I picked up a Tracker to add to my stable of sea horses, and I
    found its specs saved on iBoats of all places.

    --
    Bob La Londe
    CNC Molds N Stuff


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  • From David Billington@21:1/5 to Peter Fairbrother on Sat Jul 20 17:16:19 2024
    On 20/07/2024 15:46, Peter Fairbrother wrote:
    Is there a gadget which will measure the thickness of painted steel
    sheet from one side?  I am thinking of buying a steel boat.

    Thanks

    Peter Fairbrother

    Peter,

    If you're still in Trowbridge or nearby many of the local boatyards
    should have an ultrasonic thickness tester as IIRC it's a requirement
    the hull is checked every few years to make sure the hull thickness is maintained.

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  • From Peter Fairbrother@21:1/5 to David Billington on Sat Jul 20 20:45:41 2024
    On 20/07/2024 17:16, David Billington wrote:
    On 20/07/2024 15:46, Peter Fairbrother wrote:
    Is there a gadget which will measure the thickness of painted steel
    sheet from one side?  I am thinking of buying a steel boat.

    Thanks

    Peter Fairbrother

    Peter,

    If you're still in Trowbridge or nearby many of the local boatyards
    should have an ultrasonic thickness tester as IIRC it's a requirement
    the hull is checked every few years to make sure the hull thickness is maintained.


    David,

    Yes I am still in Trowbridge, unfortunately the boats I want to look at
    aren't. :)


    Having now looked at some, they all seem to have single digital outputs,
    which is disappointing - a simple graphical display of reflections vs
    time would be much more useful.

    Peter

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