Welcome to Our Community

Unlock hidden features. Sign Up for Free Today!

Water Jet Rack and Pinion Gear?

Discussion in 'CNC Mills/Routers' started by autox3d, Nov 21, 2015.

  1. autox3d

    autox3d Journeyman
    Builder

    Joined:
    Oct 3, 2015
    Messages:
    61
    Likes Received:
    9
    My local water jet shop was cutting rack and pinion from aluminum plate. Aside from the slight bevel any reason why this would not work even if it was done in 12mm steel plate?

    Matching gears done on a shaper?

    I can get use of a shaper for small sizes but longer parts not so much.
     
  2. Jonny Norris

    Jonny Norris Veteran
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    90
    Waterjet doesn't produce 90degree square edges so all the teeth will have a taper, had some 12mm aluminum gantry plates cut by a company big in the waterjet cutting industry here in the uk on a fantastic looking piece of kit and I'd say the taper offsets back face by around 0.7mm.

    I suppose if you angle the pinion to accommodate the taper it might get around it. Another concern would be accuracy as the rack will ultimately define the accuracy of your machine.

    Waterjet cutting tolerances are not fantastic, most companies will only guarantee within 0.25mm whereas as a common rolled steel rack is accurate within 0.05mm
     

Share This Page

  • About Us

    The OpenBuilds Team is dedicated helping you to Dream it - Build it - Share it! Collaborate on our forums and be sure to visit the Part Store for all your Building needs!
  • Like us on Facebook

  • Support Open Source FairShare Program!

    OpenBuilds FairShare Give Back Program provide resources to Open Source projects, developers and schools around the world. Invest in your future by helping others develop theirs!

    Donate to FairShare!