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  1. 27th Jun 2019, 02:44 PM #1
    kenny_10
    kenny_10 is offline Senior Member
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    Default ACME thread in Oz

    Hi all.
    Need a leadscrew and nut, made up for my lathe. It is 3/4 x 8 tpi..approx 1350 long...apparently an unusual pitch !
    Has anyone had experience in getting one made recently ?.. cost etc
    Ken in Brisbane.
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  2. 27th Jun 2019, 05:46 PM #2
    pipeclay
    pipeclay is offline Most Valued Member
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    What lathe is this to suit?
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  3. 27th Jun 2019, 08:57 PM #3
    steran50
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    I just googled and came up with these links one is in USA.
    1. http://www.mecco.com.au/acmescrews.html
    2. https://www.motiontech.com.au/product_cat/trapezoidal-screws/
    3. https://www.roton.com/family/acme-right-screws-and-nuts-7059433/

    There is probably a lot more. Even try general engineering supply shops like BSC Bearings.
    All The Best steran50 Stewart

    The shortest way to do many things is to do only one thing at once.
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  4. 27th Jun 2019, 09:37 PM #4
    adbuch
    adbuch is offline Intermediate Member
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    Quote Originally Posted by kenny_10 View Post
    Hi all.
    Need a leadscrew and nut, made up for my lathe. It is 3/4 x 8 tpi..approx 1350 long...apparently an unusual pitch !
    Has anyone had experience in getting one made recently ?.. cost etc
    Ken in Brisbane.
    Hi Kenny,
    McMaster-Carr caries these in different lengths at reasonable prices. I ship to your area all the time. Let me know what you need and I will let you know the shipping cost to you. I do not make any money on this, just doing it as a favor to you.

    David

    https://www.mcmaster.com/98935a039


    McMaster Carr lead screw an nuts.jpg
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  5. 27th Jun 2019, 09:50 PM #5
    adbuch
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    Thanks Steamwhisperer! I'm glad you liked this. Let me know if you need more information or photos.
    David

    www.desert-hybrids.com
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  6. 27th Jun 2019, 10:05 PM #6
    adbuch
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    Quote Originally Posted by adbuch View Post
    Thanks Steamwhisperer! I'm glad you liked this. Let me know if you need more information or photos.
    David

    www.desert-hybrids.com

    Thanks again!!
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  7. 28th Jun 2019, 10:30 AM #7
    kenny_10
    kenny_10 is offline Senior Member
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    Default Acme thread

    Quote Originally Posted by pipeclay View Post
    What lathe is this to suit?
    an American Barnes c-1919... Was hoping that SKS in the Brisbane area would run it up for me.. I supply the steel.. mates rates for the labour
    also need a bronze sleeve nut that I can make 2 half nuts from..my Qualos Jnr has the same size leadscrew.
    Ken.
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  8. 28th Jun 2019, 10:42 AM #8
    pipeclay
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    If it is too expensive to import a length from the states have you considered joining two Hercus leadscrews together to get your length?
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  9. 28th Jun 2019, 03:12 PM #9
    bob ward
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    Cutting a 1" x 8 tpi external acme thread.

    https://www.youtube.com/watch?v=bMXt01AMUFA
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  10. 28th Jun 2019, 07:29 PM #10
    Dave J's Avatar
    Dave J
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    I was looking around for 1ft of 5/8 10 acme thread rod, but couldn't find anything here in Australia other than one place importing it (I think it was RS) and you needed to buy the whole length at around $120 plus postage and a wait time.

    I can buy it for 9 odd US dollars a foot from the US, but with there shipping it comes out around $150 all up, so I will have to make it.

    I remember years ago a someone posted about a threading shop closing down with loads of stock to be moved, it would be all melted scrap now sadly.
    Using Tapatalk
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