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Thread: Starting another CNC table

  1. #1

    Starting another CNC table

    HI All
    I have started on a new CNC table. This thread will show all info about the construction of this table. The table will be a 4' X 4' cutting area witha parking zone for the "Y" carriage so it will be completely out of the way for loading material for cutting. I will supply the DXF files for the parts use in the construction. Attached is a video showing the "X" rail slider assemblies I developed.
    CNC bearing slider - YouTube

    have fun
    Tom
    Attached Images Attached Images        
    Miller Mig
    Everlast Tig/plasma
    HyperTherm PowerMax 65 & Machine torch
    DIY CNC table for plasma/routing CandCNC DTHC-IV Electronics
    metal lathe
    small milling machine
    Powder coating oven
    2 bead rollers
    small shop
    ect, ect

  2. #2
    Very nice! So this will be in addition to your current setup or as a replacement? I can never get enough of tools being used to make parts for better tools.
    Is it OK to want to break something just so that you can weld it back together?

  3. #3
    Looks like a great design Tom. This should be a fun thread to watch.
    Units owned Longevity PROmts 200

    Force Cut LP80 plasma cutter
    Longevity auto dark welding helmet

    Atlas 10x36" lathe
    Craftsman 5HP 30 Gal compressor
    Home made CNC router/plasma/hot wire foam cutting, 3D printing table powered by Longevity Force Cut LP80
    Home built aluminum foundry, HF 4x6 bandsaw

  4. #4
    This sucker is going to be beefy. What type of motors are you using to drive the axis'? Carriage design looks like it will keep her nice and straight.

    Anthony

  5. #5
    It will have a 1/8" X 2" square tube mounted on a 1/4" X 2" X 3" angle for the X rails driven by a 640 OZ stepper. the Y rail is a 1/8" X 2" X 4" rectangle tube with a 570 stepper.
    The base of the table is 1/4" X 2" X 2" angle. with square tube legs.
    In addition to the other table I have.
    Miller Mig
    Everlast Tig/plasma
    HyperTherm PowerMax 65 & Machine torch
    DIY CNC table for plasma/routing CandCNC DTHC-IV Electronics
    metal lathe
    small milling machine
    Powder coating oven
    2 bead rollers
    small shop
    ect, ect

  6. #6
    I welded up the basic base for the table no legs yet it is 6 X 5. It will end up over 5 due to the chain drive on both the outsides. I finished welding the sliders picture shows one X and the Y slider.
    Attached Images Attached Images          
    Miller Mig
    Everlast Tig/plasma
    HyperTherm PowerMax 65 & Machine torch
    DIY CNC table for plasma/routing CandCNC DTHC-IV Electronics
    metal lathe
    small milling machine
    Powder coating oven
    2 bead rollers
    small shop
    ect, ect

  7. #7
    Coming together quick

  8. #8
    HI Guys
    Progress report on the new table, I welded the Y rail to the side supports. Then cut out attaching brackets for the Y rail to bolt onto the X sliders. I installed the X drive bearings on the Y rail and installed the X drive connecting shaft with sprockets for a test fit. I turned some bushing for the pillow block bearings so I could use a 5/16 bolt instead of a bolt to hold the bearings on the Y rail. Installed a short section of chain to show how the chain loops to the X drive connecting shaft the chain will run parallel to the X rail. I will machine the Z bearing slider housings in the morning.
    Attached Images Attached Images      
    Miller Mig
    Everlast Tig/plasma
    HyperTherm PowerMax 65 & Machine torch
    DIY CNC table for plasma/routing CandCNC DTHC-IV Electronics
    metal lathe
    small milling machine
    Powder coating oven
    2 bead rollers
    small shop
    ect, ect

  9. #9
    Today I setup the slider for the Y axis I machined some shims to use when settiong up the bearings.
    For the top I used a .088" shim and the sides are a .064" this is for the spacing of the clearence of the slider assembly to the rail.
    Attached Images Attached Images        
    Miller Mig
    Everlast Tig/plasma
    HyperTherm PowerMax 65 & Machine torch
    DIY CNC table for plasma/routing CandCNC DTHC-IV Electronics
    metal lathe
    small milling machine
    Powder coating oven
    2 bead rollers
    small shop
    ect, ect

  10. #10
    That's a real sweet setup Tom, easily adjustable and very accurate, it shows a lot of thought and planning.
    Units owned Longevity PROmts 200

    Force Cut LP80 plasma cutter
    Longevity auto dark welding helmet

    Atlas 10x36" lathe
    Craftsman 5HP 30 Gal compressor
    Home made CNC router/plasma/hot wire foam cutting, 3D printing table powered by Longevity Force Cut LP80
    Home built aluminum foundry, HF 4x6 bandsaw

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