Yet another welding/machining/misalignment problem on Saturn 2. Sigh. - Page 5


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Thread: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

  1. #49
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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Quote Originally Posted by difalkner View Post
    When we bought the first Saturn Nate told me the frame was welded in a fixture and then stress relieved. I can tell you from having to drill the cross members and to re-locate the proximity sensors that drilling into this tubing and end caps is very difficult, so they must be stress relieved or in some fashion heat treated. Maybe they aren't now but ours definitely is very hard.

    And from what I recall about drilling it is over 1/8" thick, seems like Nate said 4mm. Maybe that's changed, too, I don't know.

    David
    I am with you on that statement David, i totally agree. I drilled my share of holes in the early model Saturn and do enough machine shop work with heat treat ovens and annealing to say they were stress relieved. You can test the Rockwell of your frame and tell.



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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Quote Originally Posted by difalkner View Post
    Yeah, thought about that after I posted it but I can tell you it is very hard.



    I don't recall exactly but I think it took about 7-8 minutes to drill each hole with a brand new bit and well lubricated with oil while drilling. I call that hard.

    Nate told me the frame is stress relieved and my assumption is that the process also hardens the steel, at least to some extent.

    David
    Yes , stress relieving will temper the steel some and elongate the grain structure and make grain structure uniform. 4MM is the thickness and stress relieve at lower than 1000 or you will start to warp . Its all about time and temp and holding said temp within a tolerance. Then you start the cool down slow and steady no oil quench usually. I think you got the first Saturn David and i received the second machine. I have not had any issues except for the rack needs upgraded to 3/4" thick.



  3. #51
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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Quote Originally Posted by newcarver View Post
    Yes , stress relieving will temper the steel some and elongate the grain structure and make grain structure uniform. 4MM is the thickness and stress relieve at lower than 1000 or you will start to warp . Its all about time and temp and holding said temp within a tolerance. Then you start the cool down slow and steady no oil quench usually. I think you got the first Saturn David and i received the second machine. I have not had any issues except for the rack needs upgraded to 3/4" thick.
    Did you get the spacers to move the 1/2" rack out from the frame?

    David

    David
    Romans 3:23
    Etsy shop opened 12/1/17 - CurlyWoodShop
    www.etsy.com/shop/CurlyWoodShop


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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Quote Originally Posted by difalkner View Post
    Did you get the spacers to move the 1/2" rack out from the frame?

    David
    No i haven't got the spacers. I have tried a few times to contact Nate to see if he could send the spacers . He must be a busy fellow. One more shot and i will just order the 3/4" heat treated rack i see he has now and replace the rack entirely.



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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    I put mine on almost a year ago and shot a video of the upgrade if you'd like to watch -



    David

    David
    Romans 3:23
    Etsy shop opened 12/1/17 - CurlyWoodShop
    www.etsy.com/shop/CurlyWoodShop


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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Quote Originally Posted by difalkner View Post
    I put mine on almost a year ago and shot a video of the upgrade if you'd like to watch -



    David
    Yes I saw your video some months ago. Your video is what prompted me to ask Nate for the upgrades. I plan on a few new upgrades spindle, new rack and pinion assembly. I have been trying to get in touch with Nate to source some parts. Great video David, it's a great idea to document upgrades and tips for all of us to learn. I need to learn how to edit video like you. I plan on documenting the upgrades too if i can get some parts. Nate ??



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    Default Re: Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

    Assuming you could ensure you gantry cars were square on both sides...could you not just loosen one rail and let the gantry sort our the mess for you, by moving it up and down the table?



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Yet another welding/machining/misalignment problem on Saturn 2. Sigh.

Yet another welding/machining/misalignment problem on Saturn 2. Sigh.