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Thread: Searching for plans for a High End CNC router using ball screws and linear bearings

  1. #1
    Join Date
    May 2013
    Location
    Northern California
    Posts
    120

    Searching for plans for a High End CNC router using ball screws and linear bearings

    Searching for a detailed set of plans to build a "high end" CNC router that utilizes ball screws and linear rails/bearings. Machining envelope in the range of 48" x 36" x 12" is desired. Machine will be used for primarily for wood, however, I would like the capability to machine aluminum occasionally.

  2. #2
    Join Date
    Sep 2009
    Location
    Medina Ohio
    Posts
    2,830
    A 48 inch long ball screw will have a large diameter so it won't whip. On our Beisse's they use Rack and pinions

  3. #3
    Join Date
    Feb 2003
    Location
    Albuquerque, NM
    Posts
    13,619
    My Camaster also uses a rack and pinion design. It has not been a problem.
    Please help support the Creek.
    If you want the rainbow, you got to put up with the rain. - Steven Wright

  4. #4
    Join Date
    May 2013
    Location
    Northern California
    Posts
    120
    Thank you for the responses. I am aware of the problems of "whip" when using long ball screws that are not of sufficient diameter. I currently have a 4' x 8' rack and pinion machine that I built 3 years ago. It works fine for wood and plastic and the occasional piece of aluminum

    My request for plans to build a "ball screw" machine is based on the need to machine 4' x 4' x .375" aluminum sheets for a customer. The customer requires closely held tolerances that his current supplier is not able to provide consistent quality parts in the quantity required.

    Does anyone know of plans that are available for a smaller (2' x 3') ball screw machine that I could "re-engineer"?

    Thank You,
    Roger

  5. #5
    Havent most ball screw machines been stationary screws? No rotating screw = no whip.
    Sometimes I just want to look at pretty pictures,... Thats when I go to the Turners Forum

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