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    cemarelectro's Avatar
    cemarelectro Posts: 1, Reputation: 1
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    #1

    Aug 21, 2012, 06:10 PM
    Linear motion
    My problem is linear motion in a vertical position I'm moving a slider up and down that moves a 0.5mm thick cross hair laser line at 4 meters from its target.
    The sliders are being moved by a parallel system using micro sliders from igus at 50.4mm apart from each other.
    The motion system is to one side of the slider it is a nut and screw system the screw is 4mm dia with a lead of 0.5mm with an anti backlash nut.The nut
    Is attached to the slider and the screw to a fixed base. When the screw turns vertical up or down my laser cross hair shows an odd movement (example vertical up) as it moves upward it has a down step
    It's swaying up and down with the rotation of the screw on its's way up. Any ideas on how to prevent this from happening.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Aug 22, 2012, 06:38 AM
    I'm having a hard time visualizing what your system consists of. Could you post a drawing of how it works?
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