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IndustryArena Forum > Mechanical Engineering > Epoxy Granite > Custom made precision mill with epoxy-granite base
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  1. #1
    Join Date
    Apr 2006
    Posts
    2

    Custom made precision mill with epoxy-granite base

    Hi all,

    I am starting work on a precision CNC milling machine with a effective work area of 16"x11"x5" (xyz) . The machine should be able to cur aluminum and soft steel (light cuts)

    It will be made from high precision parts I have scavenged from obsolete machines on an electronics smd assembly line: pick-and-place, glue dispenser, etc. I have many parts but the main ones I will use for this project can be seen in this first video of a series documenting my progress on this project:

    [ame="http://www.youtube.com/watch?v=coJQdbMnYUc"]cnc1.mov - YouTube[/ame]

    As you will see, the xyz axis are made from linear rails , ball bearings and ball screws. There is an existing large and heavy cast iron support for the x axis.

    After reading the long epoxy-granite thread on CNCZone, I think this is the way to go to join all these parts into a working precision machine.

    As you will see in the video, my main challenge is that the various parts need to be assembled onto a base that is offset in height, I cannot just pour a single flat slab.

    One option would be to do it in 3 steps, first pour a flat slab, as flat and level as possible. Then pour the 3 offset surfaces in a second step and then position all components with leveling screws and shims and then fill the gaps under the rails and x axis cast iron support with Moglice.

    Let me know what you think!

    Patrick Robin

  2. #2
    Join Date
    Apr 2006
    Posts
    2
    Here is the video link for the first clip

    [ame=http://www.youtube.com/watch?v=coJQdbMnYUc&context=C3734d55ADOEgsToPDskL4 kUS8GBIDGY3DJakFhIau]cnc1.mov - YouTube[/ame]




    Quote Originally Posted by circaeng View Post
    Hi all,

    I am starting work on a precision CNC milling machine with a effective work area of 16"x11"x5" (xyz) . The machine should be able to cur aluminum and soft steel (light cuts)

    It will be made from high precision parts I have scavenged from obsolete machines on an electronics smd assembly line: pick-and-place, glue dispenser, etc. I have many parts but the main ones I will use for this project can be seen in this first video of a series documenting my progress on this project:

    cnc1.mov - YouTube

    As you will see, the xyz axis are made from linear rails , ball bearings and ball screws. There is an existing large and heavy cast iron support for the x axis.

    After reading the long epoxy-granite thread on CNCZone, I think this is the way to go to join all these parts into a working precision machine.

    As you will see in the video, my main challenge is that the various parts need to be assembled onto a base that is offset in height, I cannot just pour a single flat slab.

    One option would be to do it in 3 steps, first pour a flat slab, as flat and level as possible. Then pour the 3 offset surfaces in a second step and then position all components with leveling screws and shims and then fill the gaps under the rails and x axis cast iron support with Moglice.

    Let me know what you think!

    Patrick Robin

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