David A's New 2x3 Bench Top CNC - Page 3


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Thread: David A's New 2x3 Bench Top CNC

  1. #25
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    Default Re: David A's New 2x3 Bench Top CNC

    The four spindle mount frames are loosely assembled and each of the two SS shafts is attached to the spindle mount with four 1/4 screws.

    That's how it looks from the front:
    David A's New 2x3 Bench Top CNC-img_6-6313-jpg

    And from the back:
    David A's New 2x3 Bench Top CNC-img_7-6314-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  2. #26
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    Default Re: David A's New 2x3 Bench Top CNC

    The completed Z-axis/slide/extension plate/spindle mount:
    David A's New 2x3 Bench Top CNC-img_8-6312-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  3. #27
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    Default Re: David A's New 2x3 Bench Top CNC

    With the Z-axis assembled, I'm moving on to the spindle.

    SPINDLE CONNECTIONS

    Electrical wire (IGUS) uses the spindle's original connector.
    I found a fitting rubber booth on Amazon that fits over it and protects it bit more:
    David A's New 2x3 Bench Top CNC-img_9-6075-jpg

    I am using McMaster Carr's 1/4ID-3/8OD PVC hose for cooling.
    I found it to be better than the one I got from HD.
    More pliable yet somewhat keeping its shape better.
    It will fit into the inlet/outlet clamp with some persuasion:
    David A's New 2x3 Bench Top CNC-img_10-6077-jpg

    Then the flow indicator is installed on one of the tubing:
    David A's New 2x3 Bench Top CNC-img_11-6078-jpg

    Last edited by davida1234; 02-23-2019 at 09:01 PM.


  4. #28
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    Default Re: David A's New 2x3 Bench Top CNC

    Cut the ends of tubing flush with the clamp:
    David A's New 2x3 Bench Top CNC-img_12-6079-jpg

    And attach the tubes to the spindle:
    David A's New 2x3 Bench Top CNC-img_13-6081-jpg

    Orient the flow indicator flat with the front of spindle:
    David A's New 2x3 Bench Top CNC-img_14-6080-jpg

    Install the electrical connector. Slip on the rubber booth:
    David A's New 2x3 Bench Top CNC-img_15-6082-jpg



  5. #29
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    Default Re: David A's New 2x3 Bench Top CNC

    Spindle is ready to be installed into the Z-axis assembly.
    Position the bottom of the SS body about 1/8" below the bottom of the mount.
    Make sure that the inlet/out side of the spindle is inline with the front of the mount:
    David A's New 2x3 Bench Top CNC-img_16-6322-jpg

    Tighten down the clamp screws, four of them:
    David A's New 2x3 Bench Top CNC-img_17-6384-jpg



  6. #30
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    Default Re: David A's New 2x3 Bench Top CNC

    On the back of the mount, there are two interior passages for tubing. Push a 1/4-3/8 tubing through that:
    David A's New 2x3 Bench Top CNC-img_18-6326-jpg

    Bottom view of the mount:
    David A's New 2x3 Bench Top CNC-img_19-6323-jpg

    Cut the end of tubing square. Heat up tubing and squeeze the tubing into
    the threaded cup end of the 1/4" LocLine hose:
    David A's New 2x3 Bench Top CNC-img_20-6327-jpg

    Push the tubing/LocLine assembly back up the channel:
    David A's New 2x3 Bench Top CNC-img_21-6328-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  7. #31
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    Default Re: David A's New 2x3 Bench Top CNC

    The bottom of the mount channel has a 1/4" pipe thread on it.
    Screw on the LocLine into it:
    David A's New 2x3 Bench Top CNC-img_22-6329-jpg

    LocLine installed on one channel:
    David A's New 2x3 Bench Top CNC-img_23-6332-jpg

    Spindle mount has two channels for LocLine installation in the back.
    You can use any of them for air or coolant and you can add them at a later time if you wish.
    I will be using just one at this time:
    David A's New 2x3 Bench Top CNC-img_24-6333-jpg

    The Z-axis / spindle assembly is finished and ready to be installed onto the X-carriage.



  8. #32
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    Default Re: David A's New 2x3 Bench Top CNC

    I don't remember anymore how many times I changed the design, recut the parts and modified the details.
    This is a prototype test mule which can and hopefully will be changed to improve many more times.


    Any comments, suggestions or critique is very welcome.

    Last edited by davida1234; 02-23-2019 at 09:17 PM.


  9. #33
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    Default Re: David A's New 2x3 Bench Top CNC

    Moving on to the X-Carriage.

    X-CARRIAGE ASSEMBLY:

    All parts for the X-Carriage:
    David A's New 2x3 Bench Top CNC-a1-img_6436-jpg

    David A's New 2x3 Bench Top CNC-a2-img_6436-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  10. #34
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    Default Re: David A's New 2x3 Bench Top CNC

    I will start the assembly with the lower plate:

    Pillow block pairs consist of a top and a bottom part.
    Align and slide a ball bushing into the bottom part of the pillow block:
    David A's New 2x3 Bench Top CNC-a3-img_6445-jpg

    Then place the bushing and the block through the opening of the lower plate:
    David A's New 2x3 Bench Top CNC-a4-img_6446-jpg

    And slide the top part of the pillow block onto the bushing:
    David A's New 2x3 Bench Top CNC-a5-img_6448-jpg

    One ball bushing and pillow block set placed:
    David A's New 2x3 Bench Top CNC-a6-img_6449-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  11. #35
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    Default Re: David A's New 2x3 Bench Top CNC

    Install the other ball bushing and pillow block set.

    That's it for the lower plate assembly:
    David A's New 2x3 Bench Top CNC-a7-img_6451-jpg



    You can utilize any parts of the design for your personal use.
    Please contact me for commercial applications.




  12. #36
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    Default Re: David A's New 2x3 Bench Top CNC

    Preparation of the upper plate:

    Top view of the upper plate with elongated holes for tramming:
    David A's New 2x3 Bench Top CNC-a9-img_7366-jpg

    And the bottom of the upper plate:
    David A's New 2x3 Bench Top CNC-a10-img_7364-jpg

    Install shoulder screw:
    David A's New 2x3 Bench Top CNC-a11-img_7368-jpg

    And the 37MM angular ball bearing:
    David A's New 2x3 Bench Top CNC-a12-img_7369-jpg



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