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Thread: Arch rule

  1. #1
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    Arch rule

    well some time back i asked for the formula to make them and got some info that worked well and i still thought i could come up with something that didnt use brain power, that is sometimes in low supply here.. so i set out to find something without memory like wood has, well the plastic i had wasnt long enough and i think would have worked as well providing you dont go to thick on it, i had some 1/8" but not long enough so i dug up this from the local hardware, its 1/16th aluminum flat stock. just drill two holes one on each end and insert heavy cord to use for the knot end to adjust to arch your after. it has worked fine for the stuff i was after at the time.. and if i could get a longer one i would to make the larger archs. and at 4.00 dollars its pretty cheap and no brain power needed just align with your piece trace and you ready for the band saw
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    If in Doubt, Build it Stout!
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    Don't put off today till tomorrow!

  2. #2
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    good idea ol son!
    benedictione omnes bene

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  3. #3
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    It appears you saved yourself mucho moolah!
    http://www.leevalley.com/en/wood/pag...=1,42936,50298
    Mack C. in Brooklin ON
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  4. #4
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    That will work, but over time will take a set to bend to near the same setting every time. It's a molecular thing. However, if you alternate the side you are bending every time you use it, you will keep it in a flux state so the metal doesn't remember where it was the last time. That is why Polycarbonate works so much better. Eventually the metal will wear out for holding a true arc, but we all wear out eventually don't we? Basically, what I am saying is plastic has a memory and remembers it was flat and naturally wants to return to that state. Metal will take the shape you give it and remain close to that shape until you change it.
    Last edited by Roger Newby; 02-15-2013 at 12:35 AM.

  5. #5
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    Great idea Larry. And I need one of these this weekend. I think I have something that will work in the shop already.

    Quote Originally Posted by Roger Newby View Post
    That will work, but over time will take a set to bend to near the same setting every time. It's a molecular thing. However, if you alternate the side you are bending every time you use it, you will keep it in a flux state so the metal doesn't remember where it was the last time. That is why Polycarbonate works so much better. Eventually the metal will wear out for holding a true arc, but we all wear out eventually don't we? Basically, what I am saying is plastic has a memory and remembers it was flat and naturally wants to return to that state. Metal will take the shape you give it and remain close to that shape until you change it.
    What if you store it flat and only bend it when you need it?
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  6. #6
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    Would a steel yardstick work as well? it already has one if not two holes in it already. Nice idea either way.

  7. #7
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    it should, but roger says that poly carbonate is better,, but i had this so used it ed
    If in Doubt, Build it Stout!
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    Don't put off today till tomorrow!

  8. #8
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    Good idea, Larry!
    Bill Arnold
    Citizen of Texas residing in Georgia.
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  9. #9
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    Nice little solution Larry, hadn't seen one using aluminum before. Wood had a fairing stick tip in a magazine a few years back with a piece on it to adjust the cord without tying a knot each time.

    http://www.woodmagazine.com/woodwork...fairing-stick/
    Darren

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  10. #10
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    Quote Originally Posted by Darren Wright View Post
    Nice little solution Larry, hadn't seen one using aluminum before. Wood had a fairing stick tip in a magazine a few years back with a piece on it to adjust the cord without tying a knot each time.

    http://www.woodmagazine.com/woodwork...fairing-stick/
    went to thew link and that would work but that means i need more string i tried to watch the video and it wanted me to sign up to see them but i could watch a spindle being turned for free,, the whole world is trying to get me to do the spinny stuff
    If in Doubt, Build it Stout!
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    Don't put off today till tomorrow!

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