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Thread: Gantry

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  1. 12-07-2012, 01:56 AM #1
    FAITHMECHANICAL
    FAITHMECHANICAL is offline Registered
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    Gantry

    can anybody help with gear reduction. I bought nema 23, 0.375 bore,600 rpm and 620 in. oz torque. Gantry will be all alum. approximately 100-120 lbs. I bought candcnc controller and the recommendation is to have 1 rotation = 1" gantry movement. I would like to have belt reduction to rack and pinion.

    Info needed:
    XL Timing & Pulley Belt Size
    What would be the best Rack & Pinion
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  2. 12-08-2012, 09:46 PM #2
    dave3431
    dave3431 is offline Registered
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    I think you have posted in the wrong forum, try the mechanical engineering, calculations, design or the linear and rotary motion forums.
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  3. 12-08-2012, 11:59 PM #3
    ger21
    ger21 is offline Community Moderator
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    Post people use 20° pressure angle, 20 pitch racks, with a 1" diameter pinion geared 3:1.

    This will give you just over 1" per motor revolution (pi/3).
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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