Please rank the rigidity of these linear bearing options - Page 2


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  1. #13
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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by tkms002 View Post
    Ya I got you there.
    Any comments on the picture I posted above?
    I think having a lowered work surface rather and a raised gantry should be stronger, right?
    Raising the rails and having short gantry risers has its advantages (saves moving mass,) but you still need to build the frame that the rail sits on strong or you'll just have flex there instead.
    A downside is it makes it a little tougher to get material into and out of the router.



  2. #14
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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by skrubol View Post
    Raising the rails and having short gantry risers has its advantages (saves moving mass,) but you still need to build the frame that the rail sits on strong or you'll just have flex there instead.
    A downside is it makes it a little tougher to get material into and out of the router.
    Thank you



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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by ger21 View Post
    It always comes down to whether you want a good machine, or a cheap machine.
    OK you convinced me but that leaves 2 more questions.
    1. can square rails be butt joined so I dont have to ship 9 ft of rail?
    2. You point out automation overstock for these, where do they source their rails and parts? I have tried contacting them but the link fails.
    3. Have you ever tried the chinese options?
    Thanks



  4. #16
    Community Moderator ger21's Avatar
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    Default Re: Please rank the rigidity of these linear bearing options

    1) Ideally, they should be ground so that the seam is perfect. But I think that CNCRP supplies unground joints for their machines.
    2) China. low-cost BLH linear guideways equivalent to Hiwin HG series of you
    3) No. I purchased their surplus Hiwin's before they ran out.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  5. #17
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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by ger21 View Post
    1) Ideally, they should be ground so that the seam is perfect. But I think that CNCRP supplies unground joints for their machines.
    2) China. low-cost BLH linear guideways equivalent to Hiwin HG series of you
    3) No. I purchased their surplus Hiwin's before they ran out.
    1. I will contact CNCRP to see how they do it and what issues they have.
    2. If these are Chinese is there a reason to buy them for $5-$600 when I can get "the same thing" from LINEARMOTIONBEARINGS for $300?
    3, Lucky for you, bad for me.

    Thanks again



  6. #18
    Community Moderator ger21's Avatar
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    Default Re: Please rank the rigidity of these linear bearing options

    2) Having someone here in the states that stands behind their products is worth something. If you have problems, it's worth a lot.

    3) I still spent $1500. They were more expensive than the Chinese versions they sell now.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  7. #19
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    Default Re: Please rank the rigidity of these linear bearing options

    ya, I hear ya.

    Thanks again



  8. #20
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    Default Re: Please rank the rigidity of these linear bearing options

    And if you want Hiwins, automation4less.com has from what I can see pretty good prices on them.



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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by nlancaster View Post
    And if you want Hiwins, automation4less.com has from what I can see pretty good prices on them.
    Well that is almost twice the price of automation overstock so I can't afford that but thanks.



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    Default Re: Please rank the rigidity of these linear bearing options

    Quote Originally Posted by ger21 View Post
    2) Having someone here in the states that stands behind their products is worth something. If you have problems, it's worth a lot.

    3) I still spent $1500. They were more expensive than the Chinese versions they sell now.
    Well I spent some time on the phone with Kent from Automation Overstock and I have to say he is a wealth of knowledge and a real talker.
    Super nice and informative guy.



  11. #23
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    Default Re: Please rank the rigidity of these linear bearing options

    Never spoken with him, but have exchanged email several times. Excellent service when I had a minor issue with an order.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  12. #24
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    Default Re: Please rank the rigidity of these linear bearing options

    I guess i dont understand with the price of profile rails and ballscrews so low why people keep messing around with other options...

    Sent from my LM-Q710(FGN) using Tapatalk



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Please rank the rigidity of these linear bearing options

Please rank the rigidity of these linear bearing options