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Bear CNC v8

Discussion in 'CNC Mills/Routers' started by Mike Campbell, Aug 16, 2020.

  1. Mike Campbell


    Jan 12, 2015
    Likes Received:
    I've been working on this build for my shop at work for over year. It was designed to keep up with a ShopBot PRS Alpha, and CAMaster Cobra 510, but made with an "openbuilds" budget.

    Bear CNC

    It features;

    - 4' x 8' x 6" cut capacity
    - 2.2 Kw, ER20 air cooled spindle
    - Vacuum hold down table
    - Rack and Pinion drive on the X and Y axis (custom made)
    - Open builds lead screw drive on the Z axis with spring assisted lift.
    - Open builds wheel linear motion
    - Buildbotics control box
    - 8020,10 series extrusions

    We finally got it tuned and set up for production this week, and I wanted to share.

    I'll add more pictures and video as soon as I can. But you can see those at my FB page also by the link above. (you'll need to scroll a bit to see it all.)

    #1 Mike Campbell, Aug 16, 2020
    Last edited: Aug 16, 2020
    Giarc likes this.
  2. Woodsmith

    Woodsmith New

    May 1, 2020
    Likes Received:
    Looks great, as befits someone who has been doing this a while and also has experience with commercial CNC routers as well.

    Hoping you will be sharing some of your design decisions and particularly some details of the rack and pinion
    Giarc and Mike Campbell like this.

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