1. Hello

    did do some work on my router today and z,y axle ready but now thinking what to use for the y axle.

    Ballsrew or rack and pinion.

    Did use ballscrew sometimes niw and di now know if ball and screw is better .

    give me your opinion please

    grt frankClick image for larger version. 

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  2. #2
    Hi, I use a ball screw, but if I decided to use a rack pinion system now.

    Two accurate reasons
    - Long spherical screws will easily cause resonance problems
    - Step motors don't like fast turns. The ball screw 1 rev is only 5mm, but the GREAT TORQUE (1605 screws)

    if you use an servo motor I would take a ball screw.

    sorry for my english

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