Diy CNC router for aluminium

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Thread: Diy CNC router for aluminium

  1. #1
    Member Vilyoo's Avatar
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    Default Diy CNC router for aluminium

    Hi everyone,
    I always wanted to make my own cnc machine. First, my idea was to build cnc mill that can cut steel, but after some reading I realized that is too difficult task for me. So I decided to make a router for aluminium+wood instead.

    The design will be made of mig welded construction, square tubes 80x80x3 and small tubes under the big plate(the plate will have holes later) are 40x40x4. The 3 red plates are 10mm and they have holes for the square tubes for easy attachment. All yellow plates will be aluminium 20mm. X-yellow profiles are 2 pieces 90x180 aluminium extrusions. Y + Z weight about 140kg. I think 2x motors 12nm for Y can push it easily?

    The parts I currently have:
    12x hgh35 blocks + rails
    1x 360mm ballscrew for Z
    4x nema 34 closed loop 12nm with hbs86h drivers
    2kw toroid transfomer 60vac
    some bf15 bk15 and couplers.

    What ballscrew should i get for x and y, i was thinking for 2010?

    For spindle I am thinking of 3kw water cooled.

    The router overall dimensions are 1500y1200x1100z, the big steel plate on the table is 800x1500, my working envelope is 600X 1000Y 180Z
    Total weight 420kg. I can fill all the tubes with concrete or sand+epoxy for extra ridgity if needed.

    I'll be happy for advises and critiques.

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    Default Re: Diy CNC router for aluminium

    Filling tubes steel tubes with concrete or epoxy granite will not add to static stiffness (rigidity). It can help damp vibrations.

    For Z axis:
    Add wings (stiffeners) to side of Z axis plate, and to carriage. Make them into C channel shapes.



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