Welcome to Our Community

Some features disabled for guests. Register Today.

Sphinx 55 on MGN12 linear rails

Discussion in 'CNC Mills/Routers' started by SORIN ILIESCU, Sep 2, 2019.

  1. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    SORIN ILIESCU published a new build:

    Read more about this build...
     
    Corey Corbin and Craig Cavanaugh like this.
  2. Corey Corbin

    Builder

    Joined:
    Feb 27, 2016
    Messages:
    3
    Likes Received:
    3
    Ok sorry for the edit of my post, But I am interested in this setup. I have a sphinx half built and I would like the switch gears and follow your idea on the rails, So I have a couple of question. I would be interested in buying a set of your gantry plates would they be available from Mr laidlaw or a dxf file? And you used the standard end plates for the sphinx on the axis with 2 motors? And how is the setup with lead screw and the Anti backlash block? Was there a spacer? Thanks!
     
    #2 Corey Corbin, Sep 4, 2019
    Last edited: Sep 5, 2019
    SORIN ILIESCU likes this.
  3. ballen

    ballen New
    Builder

    Joined:
    Jul 20, 2019
    Messages:
    1
    Likes Received:
    1
    I am also super interested in this build! I would also like the dxf of the plates if you are willing. I am trying to figure out how/if I can fit ball screw into C beam or atleast T12 leadscrew. I have T8 on a workbee now and they seem flimsy.
     
    SORIN ILIESCU likes this.
  4. HuguesP

    HuguesP New
    Builder

    Joined:
    Jan 14, 2018
    Messages:
    26
    Likes Received:
    33
    My good, this machine is so sexy, i I had to do it again I would do mine like this.
    Do you think it could handle a 1.5kw spindle and mill Aluminium?
     
    SORIN ILIESCU likes this.
  5. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    to be honest, I can’t see why it should not being able to handle it. But in December I will give it a try
     
  6. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    Chris designed and machined the plates for me, and I am sure that he will list the complete plates kit in his EBay store soon. As about the DXF files, you should talk with him about it. For the anti backlash nut/lead screw, I used a 3D printed spacer, using a STL file that Chris also provided.
     
  7. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    I don’t have any DXF files, mate, I had the plates kit designed and machines by Chris Laidlaw
     
  8. Corey Corbin

    Builder

    Joined:
    Feb 27, 2016
    Messages:
    3
    Likes Received:
    3
    Awesome! I was hoping that was the case. I'll keep a eye on his Ebay store. Thanks for sharing your build!
     
    SORIN ILIESCU likes this.
  9. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
  10. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
  11. Chris Laidlaw

    Builder

    Joined:
    Mar 1, 2014
    Messages:
    77
    Likes Received:
    24
    Also, they are 10% off (the fee Ebay charges me) if you buy directly from me... chrisclub@gmail.com
     
    sharmstr and SORIN ILIESCU like this.
  12. Andreas Bockert

    Andreas Bockert Well-Known
    Builder

    Joined:
    Oct 1, 2017
    Messages:
    141
    Likes Received:
    74
    Chris does great work and a really friendly guy.

    Did you just screw the rails to the to the c beams? When I looked at doing something similar I seem to recall that base of the rails wasn’t much larger then the the gap of the c beam. (At the top of the chamfer if this makes sense)

    I also like the reversed z axis.
     
    SORIN ILIESCU likes this.
  13. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    Yes, the rails are mounted with M3 screws, 8 mm length and with M3 T-Nuts, straight on top of the C -Beam. To be honest I had no issues doing that, except for the fact that I needed in total 140 M3 8mm screws and 140 M3 T-Nuts. To roughly center the rails on the C-Beam I used 3D printed spacers found at MGN12 Alignment Block by snicker and later I fine tuned the position of the rails using a dial indicator and a magnetic base, something similar to this item https://www.amazon.de/Flexible-Magn...&s=gateway&sprefix=Dial+,aps,214&sr=8-20&th=1
     
    Rick 2.0 likes this.
  14. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    Chris is a .... sweetheart, and the idea to reverse the Z axis comes from him as well. Great person, excellent machinist and very inventive.
     
  15. Andreas Bockert

    Andreas Bockert Well-Known
    Builder

    Joined:
    Oct 1, 2017
    Messages:
    141
    Likes Received:
    74
    Cool. My concern is that the top opening of the c beam is about 9mm and this only leaves about 1.5mm on each side for the rail to have contact with the c beam. Perhaps this is plenty enough for it to be strong, I’m not a mechanical engineer.

    I was considering milling plates to mount the rails to but it’s a lot of plates to mill and a lot of holes to tap.

    /Andreas
     
    SORIN ILIESCU likes this.
  16. SORIN ILIESCU

    Builder

    Joined:
    Jun 12, 2019
    Messages:
    9
    Likes Received:
    14
    I understand your point, but until now I got no signs of weakness from the linear rails assembly. I cutt through marine plywood at 4mm depth of cut, by mistake, and the machine didn’t complained at all.
    But there is always the option to go with MGN15, or even bigger, if you think that the MGN12 is not enough wide
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice