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Fixed Gantry CNC Router

Discussion in 'CNC Mills/Routers' started by that-jim, Feb 4, 2021.

  1. that-jim

    that-jim New
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    that-jim published a new build:

    Read more about this build...
     
  2. JustinTime

    JustinTime Journeyman
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    Looks very sturdy, Jim! :duh: :duh:

    This design is not used very often in the router world but rather in the 3d printing world since it needs a very big footprint for the same useful cutting length on the Y axis. But truth to be told, I have a machine that can cut 1200mm on the Y axis and, so far, I never used it. Max I used so far is 600mm. I could have built a machine similar to yours and get away with a smaller footprint. :)
     
  3. that-jim

    that-jim New
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    Thanks, the footprint of the machine will end up at 700 wide and 760mm deep with a cutting area of 380 x 500mm. I could certainly get a bit more cutting area for the footprint with another style of machine but I am shooting for rigidity over size. I am going with this size as it is perfect for my basement work area (in an enclosure) and it should do most of the small projects that I want to do. I do plan on building a larger cnc router with a laser that will live in the garage.
     
  4. Rob Taylor

    Rob Taylor Master
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    I think fixed gantry machines are underrated in general by hobbyists, and would have been the way I'd gone if I didn't have some fairly specific multi-axis requirements. This looks very promising!
     
  5. Kevon Ritter

    Kevon Ritter Journeyman
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    I saw this and immediately thought, "I need to make mine bigger."
    KRE Mill V3 - Concept

    Since our builds are so similar, I should mention a few things that gave me grief.
    1. The Y rails and shaft need some kind of protection. I ran mine wet which made things a lot messier a lot quicker. Even using less corrosive fluids, I would avoid flood and strictly use air. I just didn't have a compressor.
    2. Make sure you cover up that Y motor and belt assembly for same reasons above.
    What spindle are you aiming for?
     
  6. that-jim

    that-jim New
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    Your KRE mill looks awesome. Thanks for the input, I will plan on working something out for protecting the rails and especially the belt and motor. My plan is to use a 1.5kw 65mm air cooled spindle.
     

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