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IndustryArena Forum > MetalWorking Machines > Shopmaster/Shoptask > Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade
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  1. #1
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    Jan 2009
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    Exclamation Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    Does anyone have drawings or schematics for the ends of the acme lead screws (x, y, z axes) which came standard on the Shopmaster Eldorado Bridgemill 3-in-1 as manufactured circa 2004. I am interested to upgrade this unit to ball screws; unfortunately, JT at Shopmaster no longer offers these as upgrades. Although there are many alternatives available for online purchase, the ends would need to be machined so as match the factory-installed screws. I am trying to avoid disassembling my machine to make these drawings before ordering and assume others have faced this problem in the past.

    Thanks for any assistance!

  2. #2
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    Sep 2005
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    Re: Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    Seems we are both in the same position. I would also like to upgrade to ball screws. I'd really like to do the dual screw Z axis that Chuck made years ago. Anyone out there that upgraded and still has the old acme threads laying around, this would be a good start for how to machine the ends.

  3. #3
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    Aug 2016
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    Re: Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    The way that was done in the old days was Chuck would cut the original ends from the acme screws, machine them, and pin them to the new ball screws, so there were never any originals leftover. Unfortunately Chuck is no longer with us, so one of you may have to bite the bullet and make the drawings off your original screws.

  4. #4
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    Re: Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    I don't think that was always the case ...when I did my swap years ago I kept my original ones got them stashed somewhere.. maybe it changed with the addition of threading ... mine is before that

  5. #5
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    Sep 2005
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    Re: Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    Quote Originally Posted by caddycarlo View Post
    I don't think that was always the case ...when I did my swap years ago I kept my original ones got them stashed somewhere.. maybe it changed with the addition of threading ... mine is before that
    If you can find them, any chance of making up drawings of them, or would you be willing to let someone borrow them to make drawings?

  6. #6
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    Dec 2007
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    33

    Re: Drawings Needed for Eldorado Bridgemill Ball Screw Upgrade

    solonarch I am in the same position have the same machine . I had all the info but it was saved on a thumbdrive that got ruined. Anyways if there is anyway we can help each other let me know . I got Solidworks CAD available

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